WO2006080111A1 - 半導体集積回路及びシステムlsi - Google Patents
半導体集積回路及びシステムlsi Download PDFInfo
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- WO2006080111A1 WO2006080111A1 PCT/JP2005/017727 JP2005017727W WO2006080111A1 WO 2006080111 A1 WO2006080111 A1 WO 2006080111A1 JP 2005017727 W JP2005017727 W JP 2005017727W WO 2006080111 A1 WO2006080111 A1 WO 2006080111A1
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- Prior art keywords
- input
- semiconductor integrated
- integrated circuit
- output
- signal
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 244
- 238000012360 testing method Methods 0.000 claims abstract description 125
- 238000007689 inspection Methods 0.000 claims description 146
- 238000004092 self-diagnosis Methods 0.000 claims description 41
- 238000009429 electrical wiring Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 32
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000001151 other effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000011990 functional testing Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/3181—Functional testing
- G01R31/3185—Reconfiguring for testing, e.g. LSSD, partitioning
- G01R31/318533—Reconfiguring for testing, e.g. LSSD, partitioning using scanning techniques, e.g. LSSD, Boundary Scan, JTAG
- G01R31/318594—Timing aspects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/31712—Input or output aspects
- G01R31/31713—Input or output interfaces for test, e.g. test pins, buffers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/3172—Optimisation aspects, e.g. using functional pin as test pin, pin multiplexing
Definitions
- the present invention relates to a structure of a semiconductor integrated circuit and a system LSI that can be easily inspected.
- a function test in a semiconductor integrated circuit is performed in the following procedure.
- an inspection input signal is input to the semiconductor integrated circuit to be inspected, and an inspection output signal output in response to the input is received by the LSI inspection device.
- the semiconductor integrated circuit operates normally by comparing and determining the inspection output signal output from the semiconductor integrated circuit and the inspection expected value signal indicating the output state during normal operation. Inspect whether or not.
- test input terminal that can directly input a test input signal to the circuit to be tested and can directly output a test output signal or an LSI external It is necessary to provide an inspection-use terminal that is also used as a terminal (hereinafter referred to as an inspection-dedicated Z-inspection terminal).
- BIST Built in Self Test
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-93421 Disclosure of the invention
- SIP system-in-package
- the present invention has been made in view of the strong point, and the purpose of the present invention is to use a dedicated Z test for inputting a necessary signal from the outside when performing a function test of an LSI.
- An object of the present invention is to provide a semiconductor integrated circuit that can solve the problem of an increase in the number of terminals.
- another object of the present invention is to provide an inspection that occurs when there is even one semiconductor integrated circuit that does not have a self-diagnosis function in a SIP type system LSI composed of a plurality of semiconductor integrated circuits.
- An object of the present invention is to provide a semiconductor integrated circuit for solving the problem of an increase in the number of terminals.
- the present invention provides a semiconductor integrated circuit including a circuit to be inspected that is an object to be inspected, and generates an inspection expectation value signal for comparison with an inspection result in the circuit to be inspected.
- the expected inspection value program means includes an input Z input / output pad for receiving a predetermined signal required for a ground terminal or power supply terminal force inspection connected to the semiconductor integrated circuit, and the input.
- a switch connected to the Z input / output pad and selectively switching the output state of the signal input via the input Z input / output pad; and the inspection expectation value based on the output signal output from the switch.
- an expected value generation circuit for generating a signal.
- an input signal required at the time of BIST can be input from the outside of the LSI using the power supply terminal or the ground terminal without using the dedicated inspection Z terminal. it can.
- the semiconductor integrated circuit of the present invention it is possible to reduce the number of inspection-dedicated Z-inspection terminals necessary for, for example, BIST in function inspection.
- FIG. 1 is a block diagram showing a configuration of a semiconductor integrated circuit according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a configuration of a test expected value program circuit according to the first embodiment.
- FIG. 3 is a block diagram showing a configuration of a test expected value program circuit in the second embodiment.
- FIG. 4 is a block diagram showing a configuration of a test expected value program circuit according to the third embodiment.
- FIG. 5 is a block diagram showing a configuration of a shift register circuit in the third embodiment.
- FIG. 6 is a timing chart showing the operation of the shift register circuit in the third embodiment.
- FIG. 7 is a block diagram showing a configuration of a semiconductor integrated circuit according to the fourth embodiment.
- FIG. 8 is a block diagram showing a configuration of an expected test value program circuit according to the fourth embodiment.
- FIG. 9 is a timing chart illustrating the operation of the semiconductor integrated circuit according to the fourth embodiment.
- FIG. 10 is a block diagram showing a configuration of a test expected value program circuit according to the fifth embodiment.
- FIG. 11 is a timing chart showing the operation of the semiconductor integrated circuit according to the fifth embodiment.
- FIG. 12 is a block diagram showing a configuration of a semiconductor integrated circuit according to the sixth embodiment.
- FIG. 13 is a block diagram showing a configuration of a test expected value program circuit according to the sixth embodiment.
- FIG. 14 is a block diagram showing a configuration of a semiconductor integrated circuit according to the seventh embodiment.
- FIG. 15 is a block diagram showing a configuration of a semiconductor integrated circuit according to the eighth embodiment.
- FIG. 16 is a block diagram showing a configuration of a semiconductor integrated circuit according to the ninth embodiment.
- FIG. 17 is a block diagram showing a configuration of a semiconductor integrated circuit according to the tenth embodiment. is there.
- FIG. 18 is a block diagram showing the configuration of the semiconductor integrated circuit according to the eleventh embodiment.
- FIG. 19 is a block diagram showing a configuration of a semiconductor integrated circuit according to the twelfth embodiment.
- FIG. 20 is a cross-sectional view showing a configuration of a semiconductor integrated circuit according to the twelfth embodiment.
- FIG. 21 is a block diagram showing a configuration of a semiconductor integrated circuit according to the thirteenth embodiment.
- FIG. 22 is a cross-sectional view showing the configuration of the semiconductor integrated circuit according to the thirteenth embodiment.
- FIG. 1 is a block diagram showing an overall configuration of a semiconductor integrated circuit according to Embodiment 1 of the present invention.
- 10 is a semiconductor integrated circuit package
- 11 is a semiconductor integrated circuit A packaged in a semiconductor integrated circuit package 10.
- This semiconductor integrated circuit Al l incorporates a BIST control circuit 12 for controlling BIST mode generation, inspection input value generation, inspection expected value generation, and internal CLK generation, and a circuit under test 16 to be inspected. ing.
- the BIST control circuit 12 includes information necessary for performing inspection, that is, a CLK signal 2, a mode signal 3 for determining a test mode, and input value data 4 necessary for generating a test input value. Input from LSI inspection device 1.
- the CLK signal 2 The CLK signal 23 is generated based on the above, the expected value control signal 102 is generated based on the mode signal 3, and the input value control signal 17 is generated based on the mode signal 3 and the input value data 4.
- the CLK signal 23 generated by the BIST control circuit 12 is sent to the expected value comparison circuit 14, the input value generation circuit 15, and the expected value generation circuit 13 in the inspection expected value program circuit 100, respectively. Entered. Further, an expected value control signal 102 is input to the expected value generation circuit 13 in synchronization with the CLK signal 23, and an input value control signal 17 is input to the input value generation circuit 15 in synchronization with the CLK signal 23. .
- the expected value generation circuit 13, the expected value comparison circuit 14, and the input value generation circuit 15 operate in synchronization with the input CLK signal 23, respectively. Can be performed at a frequency synchronized with the CLK signal 23.
- a test input signal 18 is generated based on the input value control signal 17, and this signal is input to the circuit under test 16.
- the circuit under test 16 generates an output result in response to the input test input signal 18 and outputs the output result as the test output signal 20 to the expected value comparison circuit 14.
- the inspection expected value program circuit 100 has an input Z input / output node 103 for receiving a signal from the ground terminal 30 or the power supply terminal 31 of the semiconductor integrated circuit package 10, and this input Z A switch 105 for selectively switching the output of a signal input via the input / output pad 103; a switch control circuit 109 for outputting a switch control signal 110 for controlling the switch 105; and the expected value generation circuit 13. Yes.
- a ground Z power signal 104 is input to the switch 105 from the ground terminal 30 or the power terminal 31 via the input Z input / output pad 103.
- the switch 105 further receives a switch control signal 110 output from the switch control circuit 109, and the connection state of the switch 105 is switched based on the switch control signal 110. Specifically, when not in the test mode 106, the switch 105 and the expected value generation circuit 13 are not connected. In the test mode 107, the input to the switch 105 is generated as the switch output signal 122 as it is. The connection state is switched so that it is input to circuit 13. available.
- the expected value generation circuit 13 generates a test expected value signal 21 and outputs the signal to the expected value comparison circuit 14.
- the inspection output signal 20 and the inspection expected value signal 21 are compared, and a comparison result signal 22 that is a comparison result of the two signals is sent to the BIST control circuit 12. Is output.
- the BIST control circuit 12 outputs a BIST result 6 indicating the quality of the product determined based on the comparison result signal 22 to the LSI inspection apparatus 1.
- the signal required for the BIST inspection can be directly taken in through the ground terminal or the power supply terminal without passing through the LSI external terminal. It is possible to reduce the number of Z inspection / external terminals provided outside the LSI.
- the inspection can be performed at the actual operation speed.
- FIG. 3 is a block diagram showing a configuration of an inspection expected value program circuit in the semiconductor integrated circuit according to the second embodiment. Since the difference from the first embodiment is only the circuit configuration of the expected inspection value program circuit 100, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the differences will be described.
- the switch 111 in the expected test value program circuit 100 has three modes: 106 when not in the test mode, 107 during the first test mode, and 108 during the second test mode. Is configured to be selectable.
- the switch 111 when the switch 111 is not in the test mode 106 when the switch 111 is selected, the connection in the switch 111 is cut off and the ground Z power signal taken in from the input Z input / output pad 103 is selected. 104 is not output to the expected value generation circuit 13.
- the input to the switch 111 is output to the expected value generation circuit 13 as it is. Furthermore, when the second test mode 108 is selected in the switch 111, the input to the switch 111 is inverted and the force is also output to the expected value generation circuit 13. Subsequent operations are the same as those in the first embodiment.
- a high-level or low-level signal necessary for the BIST inspection is synchronized with the CLK signal that does not pass through the LSI external terminal.
- the terminal or power supply terminal force can also be directly captured, reducing the number of inspection-dedicated Z-inspection terminals provided outside the LSI.
- FIG. 4 is a block diagram showing a configuration of an inspection expected value program circuit in the semiconductor integrated circuit according to the third embodiment. Since the difference from the second embodiment is only that the shift register circuit 120 is provided between the switch 111 and the expected value generation circuit 13, hereinafter, the same parts as those of the second embodiment are denoted by the same reference numerals, Only the differences will be described.
- the expected test value program circuit 100 includes a shift register circuit 120 for dividing the switch output signal 122 output from the switch 111 into a plurality of signals.
- FIG. 5 is a block diagram showing a configuration of the shift register circuit 120.
- the shift register circuit 120 receives the switch output signal 122 output from the switch 111, and receives the expected value control signal 102 and the CLK signal 23 output from the BIST control circuit 12 in synchronization. Then, as shown in the timing chart of FIG. 6, by generating a plurality of output signals from one input signal, the switch output signal 122 is divided into a plurality of shift register output signals 121, and this shift register output The signal 121 is input to the expected value generation circuit 13. Subsequent operations are the same as those in the second embodiment.
- a plurality of high-level or low-level signals necessary for the BIST inspection are synchronized with the CLK signal that does not pass through the LSI external terminal. Therefore, it can be taken directly from the ground terminal or the power supply terminal, and the number of inspection-dedicated Z-inspection terminals can be reduced outside the LSI.
- FIG. 7 is a block diagram showing the configuration of the semiconductor integrated circuit according to the fourth embodiment of the present invention
- FIG. 8 is a block diagram showing the configuration of the expected inspection value program circuit according to the fourth embodiment. Since the difference from the second embodiment is only that a plurality of input Z input / output nodes for taking in the ground Z power supply signal are provided, the same parts as those in the second embodiment are denoted by the same reference numerals, and Only the differences will be described.
- the test expected value program circuit 100 includes a plurality of input Z input / output pads 103 for receiving the ground Z power supply signal 104 of the semiconductor integrated circuit package 10 and the plurality of input Z inputs.
- a plurality of switches 111 for switching the output of signals input from the output pad 103, a switch control circuit 119 for collectively controlling the switches 111, and the expected value generation circuit 13 are provided.
- the ground Z power signal 104 is input to the plurality of switches 111 from the ground terminal 30 or the power supply terminal 31 via the plurality of input Z input / output pads 103.
- the plurality of switches 111 are further supplied with a switch control signal 112 output from the switch control circuit 119, respectively. Based on the switch control signal 112, the connection state of the switches 111 is simultaneously controlled. Is done.
- a plurality of signals at a single level or two levels that are necessary for the BIST inspection are converted into a CLK signal that does not pass through the LSI external terminal. Synchronously, it can be directly fetched from the ground terminal or the power supply terminal, and the number of dedicated inspection Z inspection / use terminals outside the LSI can be reduced.
- FIG. 10 shows the configuration of the inspection expected value program circuit in the semiconductor integrated circuit according to the fifth embodiment. It is a block diagram which shows composition. Since the difference from the fourth embodiment is only the circuit configuration of the expected inspection value program circuit 100, the same parts as those of the fourth embodiment are denoted by the same reference numerals and only the differences will be described below.
- the expected test value program circuit 100 includes a switch control circuit 215 for individually controlling the plurality of switches 111. Others are the same as in the fourth embodiment.
- a ground Z power signal 104 is input to the plurality of switches 111 from the ground terminal 30 or the power supply terminal 31 via the plurality of input Z input / output pads 103. Further, the switch control signals 113 and 114 output from the switch control circuit 215 are respectively input to the plurality of switches 111, and the connection states of the plurality of switches 111 are individually determined based on the switch control signals 113 and 114, respectively. Controlled.
- a plurality of high-level or low-level signals necessary for the BIST inspection are synchronized with the CLK signal that does not pass through the LSI external terminal. Therefore, the ground terminal or power supply terminal force can be directly captured individually, and the number of dedicated inspection Z inspection / use terminals outside the LSI can be reduced.
- FIG. 12 is a block diagram showing a configuration of a semiconductor integrated circuit according to Embodiment 6 of the present invention. Since the difference from the fifth embodiment is that a test input value program circuit is provided instead of the test expected value program circuit, the same parts as those of the fifth embodiment are denoted by the same reference numerals, and only the differences are described below. explain.
- the BIST control circuit 12 has information necessary for the inspection, that is, the CLK signal 2, the mode signal 3 for determining the test mode, and the inspection expected value generation.
- Expected value data 5 is input from LSI inspection device 1.
- a CLK signal 23 is generated based on the CLK signal 2
- an input value control signal 202 is generated based on the mode signal 3
- an expected value control signal 19 is generated based on the mode signal 3 and the expected value data 5. .
- the CLK signal 23 generated by the BIST control circuit 12 is sent to the expected value generation circuit 13, the expected value comparison circuit 14, and the input value generation circuit 15 inside the inspection input value program circuit 200, respectively. Entered. Further, an expected value control signal 19 is input to the expected value generation circuit 13 in synchronization with the CLK signal 23, and an input value control signal 202 is input to the input value generation circuit 15 in synchronization with the CLK signal 23. .
- the expected value generation circuit 13 generates a test expected value signal 21 based on the expected value control signal 19 and outputs this signal to the expected value comparison circuit 14.
- the test input value program circuit 200 includes a plurality of input Z input / output pads 103 for receiving signals from the ground terminal 30 or the power supply terminal 31 of the semiconductor integrated circuit package 10, and the input Z input / output pads 103.
- a plurality of switches 111 for switching the output of a signal input from the input / output pad 103, a switch control circuit 209 for individually controlling the switches 111, and the input value generation circuit 15; Yes.
- a ground Z power signal 104 is input to the plurality of switches 111 from the ground terminal 30 or the power supply terminal 31 via the plurality of input Z input / output pads 103. Further, the switch control signals 213 and 214 output from the switch control circuit 215 are respectively input to the plurality of switches 111, and the connection states of the plurality of switches 111 are individually determined based on the switch control signals 213 and 214. Controlled.
- the switch 111 when the switch 111 is not in the test mode 106 when the switch 111 is not selected, the connection in the switch 111 is cut off, and the ground Z power supply signal 104 taken in from the input Z input / output canod 103 is received.
- the input value generation circuit 15 is not output.
- the input to the switch 111 is output to the input value generation circuit 15 as it is.
- the input to the switch 111 is inverted and output to the force input value generation circuit 15. Then, the input value generation circuit 15 generates a test input signal 18 based on the input signal, and outputs this test input signal 18 to the circuit under test 16. In the circuit under test 16, an output result in response to the input test input signal 18 is generated, and this output result is output as the test output signal 20 to the expected value comparison circuit 14.
- the inspection output signal 20 and the inspection expected value signal 21 are compared, and a comparison result signal 22 that is a comparison result of the two signals is sent to the BIST control circuit 12. Is output.
- the BIST control circuit 12 outputs a BIST result 6 indicating the quality of the product determined based on the comparison result signal 22 to the LSI inspection apparatus 1.
- a plurality of high-level or low-level signals necessary for the BIST inspection are synchronized with the CLK signal that does not pass through the LSI external terminal. Therefore, the ground terminal or power supply terminal force can be directly captured individually, and the number of dedicated inspection Z inspection / use terminals outside the LSI can be reduced.
- the component having the same configuration as the inspection expected value program circuit of the fifth embodiment is used as the component of the portion that takes in the input value from the ground terminal and the power supply terminal.
- the configuration having the same configuration as that of the expected test value program circuit according to the first to fourth embodiments may be used.
- FIG. 14 is a block diagram showing a configuration of a semiconductor integrated circuit according to the seventh embodiment of the present invention. Since the difference from the sixth embodiment is that the inspection expected value program circuit is provided together with the inspection input value program circuit, the same parts as those of the sixth embodiment are denoted by the same reference numerals and only the differences will be described below. To do.
- the BIST control circuit 12 is supplied with information necessary for the inspection, that is, the CLK signal 2 and the mode signal 3 for determining the test mode from the LSI inspection apparatus 1. It is.
- this BIST control circuit 12 a CLK signal 23 based on the CLK signal 2 is generated, and an expected value control signal 102 and an input value control signal 202 are generated based on the mode signal 3.
- the CLK signal 23 generated by the BIST control circuit 12 includes an expected value comparison circuit 14, an expected value generation circuit 13 in the inspection expected value program circuit 100, and an inspection input value program circuit 200. Input to the input value generation circuit 15 respectively. Further, an expected value control signal 102 is input to the expected value generation circuit 13 in synchronization with the CLK signal 23, and an input value control signal 202 is input to the input value generation circuit 15 in synchronization with the CLK signal 23.
- the expected test value program circuit 100 generates a test expected value signal 21 based on the expected value control signal 102 and outputs this signal to the expected value comparison circuit 14. Since the operation at this time is the same as that of the fifth embodiment, detailed description thereof is omitted.
- the test input value program circuit 200 generates a test input signal 18 based on the input value control signal 202 and outputs this signal to the circuit under test 14. Since the operation at this time is the same as that of the sixth embodiment, detailed description thereof is omitted.
- the circuit under test 16 generates an output result in response to the input inspection input signal 18, and this output result is output as the inspection output signal 20 to the expected value comparison circuit 14.
- the inspection output signal 20 and the inspection expected value signal 21 are compared, and a comparison result signal 22 that is a comparison result of the two signals is sent to the BIST control circuit 12. Is output.
- the BIST control circuit 12 outputs a BIST result 6 indicating the quality of the product determined based on the comparison result signal 22 to the LSI inspection apparatus 1.
- a plurality of high-level or low-level signals necessary for the BIST inspection are synchronized with the CLK signal that does not pass through the LSI external terminal. Therefore, the ground terminal or power supply terminal force can be directly captured individually, and the number of dedicated inspection Z inspection / use terminals outside the LSI can be reduced.
- the expected inspection value program circuit according to the fifth embodiment and the inspection input value program circuit according to the sixth embodiment are used as components of a part that takes in an input value from a ground terminal and a power supply terminal.
- the force using the same configuration as that of the test expected value program circuit and the test input value program circuit according to Embodiments 1 to 4 may be used. .
- FIG. 15 is a block diagram showing a configuration of the semiconductor integrated circuit according to the eighth embodiment of the present invention. Since the difference from the fifth embodiment is that two semiconductor integrated circuits are built in one semiconductor integrated circuit package, the same parts as those of the fifth embodiment are denoted by the same reference numerals. Only the differences will be described.
- the semiconductor integrated circuit package 10 includes a semiconductor integrated circuit All and a semiconductor integrated circuit B60.
- the semiconductor integrated circuit All is a circuit having a self-diagnosis function
- the semiconductor integrated circuit B60 is a circuit not having a self-diagnosis function.
- the semiconductor integrated circuit All includes, for example, a selector 82 that selects and outputs an input signal in addition to the components described in the fifth embodiment, and an external terminal connected to the LSI inspection apparatus 1 And an internal circuit 83 for receiving input of power.
- the selector 82 receives the first input signal 80 from the external terminal via the internal circuit 83, while the inspection input signal 18 output from the input value generation circuit 15 receives the second input signal 80. Input as input signal 81.
- the semiconductor integrated circuit All and the semiconductor integrated circuit B60 are connected so that the output of the selector 82 becomes the input of the semiconductor integrated circuit B60. Further, the output result of the circuit under test 61 inside the semiconductor integrated circuit B60 is inputted as the test output signal 20 to the expected value comparison circuit 14 of the semiconductor integrated circuit All.
- the first input signal 80 input to the selector 82 is output from the selector 82 and input to the semiconductor integrated circuit B60.
- the internal circuit 83 it is difficult to perform an input for directly inspecting the semiconductor integrated circuit B60 with an external input.
- the second input signal 81 input to the selector 82 is output from the selector 82 and input to the semiconductor integrated circuit B60.
- the second input signal 81 is an input signal for inspecting the circuit under test 61 of the semiconductor integrated circuit B60, and the circuit under test 61 responds to the second input signal 81.
- the output result is generated, and this output result is input as the inspection output signal 20 to the expected value comparison circuit 14 of the semiconductor integrated circuit All. Subsequent operations are the same as those in the fifth embodiment.
- the semiconductor integrated circuit having the self-diagnosis function is provided with the selector that selects and outputs the input of the external force and the input at the time of self-diagnosis. Therefore, it is possible to easily inspect a semiconductor integrated circuit that does not have a self-diagnosis function. As a result, in the past, when multiple semiconductor integrated circuits were built in one semiconductor integrated circuit package, it was difficult to inspect the semiconductor integrated circuit side that did not have a self-diagnostic function. If it is necessary to provide a Z-inspection terminal, it is advantageous to solve the problem.
- a plurality of high-level or low-level signals necessary for the BIST inspection are directly and individually connected to the ground terminal or the power supply terminal in synchronization with the CLK signal that does not pass through the LSI external terminal. It is possible to reduce the number of Z inspection / external terminals provided outside the LSI.
- the expected value for inspection is generated and inputted externally, it is not necessary to have the expected value inside the circuit, and it is possible to perform inspection without performing hardware correction.
- the semiconductor integrated circuit since a supply problem occurs in the semiconductor integrated circuit to be configured and the semiconductor integrated circuit is replaced with another semiconductor integrated circuit, it is necessary to change the expected value for inspection, and the hardware of the semiconductor integrated circuit itself is changed. It will be advantageous to solve the problem if you can't inspect it!
- the force using the configuration of the fifth embodiment provided with only the expected inspection value program circuit is not particularly limited to this configuration.
- the inspection input value program circuit shown in 4 or 6 may be provided.
- FIG. 16 is a block diagram showing a configuration of the semiconductor integrated circuit according to the ninth embodiment of the present invention. Since the difference from the eighth embodiment is that N semiconductor integrated circuits are built in one semiconductor integrated circuit package, the same parts as those in the eighth embodiment are denoted by the same reference numerals. Only the differences will be described.
- the semiconductor integrated circuit package 10 includes a semiconductor integrated circuit All, a semiconductor integrated circuit B60, and a semiconductor integrated circuit N70.
- the semiconductor integrated circuit All is a circuit having a self-diagnosis function
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are circuits having no self-diagnosis function.
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are directly connected to each other.
- the semiconductor integrated circuit package 10 includes N semiconductor integrated circuits.
- the semiconductor integrated circuit All includes a selector N85.
- the selector N85 receives the first input signal 80 as an external terminal force via the internal circuit 83, while the inspection input signal 18 output from the input value generation circuit 15 serves as the third input signal 86. Entered.
- the semiconductor integrated circuit All and the semiconductor integrated circuit N70 are connected so that the output of the selector N85 becomes the input of the semiconductor integrated circuit N70.
- the output result of the circuit under test 71 inside the semiconductor integrated circuit N70 is input to the expected value comparison circuit 14 of the semiconductor integrated circuit All as the test output signal 20.
- the first input signal 80 force input to the selector 82 and the selector N85 is output from the selector 82 and the selector N85.
- the signal passes through the internal circuit 83 it is difficult to perform an input that directly detects the semiconductor integrated circuits B60 and N70 by an external input.
- the second input signal 81 input to the selector 82 and the third input signal 86 input to the selector N85 are output, respectively, and this second input signal 81 is input to the semiconductor integrated circuit B60, and a third input signal 86 is input to the semiconductor integrated circuit N70.
- the second input signal 81 is an input signal for inspecting the semiconductor integrated circuit B60
- the third input signal 86 inspects the circuit under test 71 of the semiconductor integrated circuit N70. Is an input signal.
- the circuit under test 61 generates an output result in response to the second input signal 81
- the circuit under test 71 generates an output result in response to the third input signal 86.
- Each of these output results is input as an inspection output signal 20 to the expected value comparison circuit 14 of the semiconductor integrated circuit All.
- the subsequent operation is the same as that of the fifth embodiment.
- the semiconductor integrated circuit of the ninth embodiment there are a plurality of semiconductor integrated circuits that do not have a self-diagnosis function, and there are semiconductor integrated circuits that do not have the self-diagnosis function. In the case of having a configuration that is not connected to each other, the inspection can be easily performed. Other effects are the same as in the eighth embodiment.
- FIG. 17 is a block diagram showing a configuration of the semiconductor integrated circuit according to the tenth embodiment of the present invention. Since the difference from the ninth embodiment is that the semiconductor integrated circuit B and the semiconductor integrated circuit N that do not have a self-diagnosis function are connected to each other, hereinafter, the same parts as those of the ninth embodiment are the same. Only the differences will be described.
- the semiconductor integrated circuit package 10 includes a semiconductor integrated circuit All, a semiconductor integrated circuit B60, and a semiconductor integrated circuit N70.
- the semiconductor integrated circuit All is a circuit having a self-diagnosis function
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are circuits having no self-diagnosis function.
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are directly connected to each other. Signals can be exchanged between these circuits.
- the semiconductor integrated circuit package 10 includes N semiconductor integrated circuits.
- the first input signal 80 input to the selector 82 and the selector N85 is output from the selector 82 and the selector N85, respectively, and the semiconductor integrated circuit B60 And input to the semiconductor integrated circuit N70.
- the signal passes through the internal circuit 83, it is difficult to perform an input for directly inspecting the semiconductor integrated circuits B60 and N70 by an external input.
- the second input signal 81 input to the selector 82 and the third input signal 86 input to the selector N85 are output, respectively, and the semiconductor integrated circuit B60
- the second input signal 81 output from the selector 82 is input
- the third input signal 86 output from the selector N85 is input as the fourth input signal 87.
- the third input signal 86 output from the selector N70 is input to the semiconductor integrated circuit N70.
- the normal input signal 90 is input from the circuit under test 61 of the semiconductor integrated circuit B60 to the circuit under test 71 of the semiconductor integrated circuit N70 using the path connected in the user use state.
- the circuit under test 71 generates an output result in response to the normal input signal 90.
- the output result is output to the circuit under test 61 as a normal output signal 91.
- the output result of the circuit under test 71 is
- the test output signal 20 is input to the expected value comparison circuit 14 of the semiconductor integrated circuit All through the semiconductor integrated circuit B60.
- the subsequent operation is the same as that of the fifth embodiment.
- the semiconductor integrated circuit of the tenth embodiment there are a plurality of semiconductor integrated circuits that do not have a self-diagnosis function, and there are semiconductor integrated circuits that do not have the self-diagnosis function. In the case where the components are connected to each other, the inspection can be easily performed. Other effects are the same as in the eighth embodiment.
- FIG. 18 is a block diagram showing a configuration of a semiconductor integrated circuit according to Embodiment 11 of the present invention.
- Embodiment 9 an internal circuit that outputs a burn-in output signal is provided. Therefore, the same parts as those in the ninth embodiment are denoted by the same reference numerals, and only different points will be described below.
- the semiconductor integrated circuit package 10 includes a semiconductor integrated circuit All, a semiconductor integrated circuit B60, and a semiconductor integrated circuit N70.
- the semiconductor integrated circuit All is a circuit having a self-diagnosis function
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are circuits having no self-diagnosis function.
- the semiconductor integrated circuit B60 and the semiconductor integrated circuit N70 are directly connected to each other.
- the semiconductor integrated circuit package 10 includes N semiconductor integrated circuits.
- the semiconductor integrated circuit All includes an internal circuit 88 in addition to the components described in the ninth embodiment, and the burn-in mode is selected in the semiconductor integrated circuit All configured as described above.
- the input value generation circuit 15 outputs the fifth input signal 89 for performing the burn-in operation to the internal circuits 83 and 88, respectively.
- the burn-in output signal 92 output from the internal circuits 83 and 88 in response to the fifth input signal 89 is input to the expected value comparison circuit 14.
- the operation of the self-diagnosis function is the same as that of the ninth embodiment, description thereof is omitted.
- the burn-in operation for the internal circuits 83 and 88 and the self-diagnosis function described above are each processed in parallel.
- the burn-in operation and the result of the self-diagnosis operation are compared, and the comparison result is output as a comparison result signal 22.
- the subsequent operation is the same as in the ninth embodiment.
- a burn-in is performed on the side of the semiconductor integrated circuit that does not have a self-diagnosis function.
- the toggle operation of all semiconductor integrated circuits can be easily performed. It can be realized and the operation during burn-in can be easily monitored.
- the signal required for burn-in operation is routed through the LSI external terminal.
- the number of inspection burn-in dedicated Z burn-in terminals can be reduced outside the LSI.
- FIG. 19 is a block diagram showing a configuration of a semiconductor integrated circuit according to Embodiment 12 of the present invention. Since the basic configuration is the same as that of the fifth embodiment, the same parts as those of the fifth embodiment are denoted by the same reference numerals, and only differences will be described below.
- the semiconductor integrated circuit substrate 40 includes a semiconductor integrated circuit All.
- the semiconductor integrated circuit board 40 includes a power source layer 46 and a ground layer 47 in a substrate composed of a plurality of layers, and a power source is provided on the surface connected to the semiconductor integrated circuit A. Lands 45 and ground lands 43 are formed. Then, the power supply pad 33 and the power supply land 45, and the ground pad 32 and the ground land 43 are connected to each other, whereby the semiconductor integrated circuit A and the semiconductor integrated circuit substrate 40 are electrically connected. .
- the expected input value is generated by selecting and connecting the input Z input / output pad 103 and the power land 45 or the ground land 43 during assembly. Is possible.
- the subsequent operation is the same as that of the fifth embodiment.
- FIG. 21 is a block diagram showing a configuration of a semiconductor integrated circuit according to Embodiment 13 of the present invention. Since the difference from the fifth embodiment is that the ground terminal or power supply terminal and the input Z input / output pad are connected by wire wiring, the following is the same as in the fifth embodiment. Are denoted by the same reference numerals, and only differences will be described.
- the semiconductor integrated circuit package 51 is configured by connecting a semiconductor integrated circuit All and a lead frame 54 (see FIG. 22) by a wire wiring 50. Specifically, the power terminal 31 and the power pad 33, and the ground terminal 30 and the ground pad 32 are connected via the inner leads of the lead frame 54, respectively.
- the inspection expected value can be generated by selecting and connecting the input Z input / output pad 103 and the power supply terminal 31 or the ground terminal 30 at the time of assembly. It becomes possible.
- the subsequent operation is the same as in the fifth embodiment.
- the wire wiring 50 is wired from the existing power supply terminal 31 or ground terminal 30.
- QFP quad flat package
- the number of terminals required for the function inspection can be reduced and the inspection can be easily performed by using the power supply and the ground terminal, and an expensive LSI inspection apparatus is not used. If it is possible to inspect, it can be highly practical and effective. Therefore, it is extremely useful and has high industrial applicability.
- It can also be used for inspection of a set after mounting used by a user.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Integrated Circuits (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/795,904 US7739571B2 (en) | 2005-01-27 | 2005-09-27 | Semiconductor integrated circuit and system LSI having a test expected value programming circuit |
JP2007500418A JP4516110B2 (ja) | 2005-01-27 | 2005-09-27 | システムlsi |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005019757 | 2005-01-27 | ||
JP2005-019757 | 2005-01-27 |
Publications (1)
Publication Number | Publication Date |
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WO2006080111A1 true WO2006080111A1 (ja) | 2006-08-03 |
Family
ID=36740145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/017727 WO2006080111A1 (ja) | 2005-01-27 | 2005-09-27 | 半導体集積回路及びシステムlsi |
Country Status (4)
Country | Link |
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US (1) | US7739571B2 (ja) |
JP (1) | JP4516110B2 (ja) |
CN (1) | CN101111776A (ja) |
WO (1) | WO2006080111A1 (ja) |
Cited By (1)
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JPWO2021181830A1 (ja) * | 2020-03-09 | 2021-09-16 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010192026A (ja) * | 2009-02-17 | 2010-09-02 | Toshiba Corp | 不良解析方法、不良解析システムおよびメモリマクロシステム |
JP5319641B2 (ja) * | 2010-10-14 | 2013-10-16 | 株式会社東芝 | 診断回路および半導体集積回路 |
CN103513177B (zh) * | 2012-06-29 | 2018-05-01 | 上海芯豪微电子有限公司 | 运算器测试系统及测试方法 |
US10473711B2 (en) * | 2016-04-15 | 2019-11-12 | Infineon Technologies Ag | Multi-channel fault detection with a single diagnosis output |
US11555899B2 (en) * | 2019-02-19 | 2023-01-17 | Infineon Technologies Ag | Random hardware fault and degradation protection apparatus for time-of-flight receiver |
JP7179165B2 (ja) * | 2019-04-23 | 2022-11-28 | 日立Astemo株式会社 | 半導体集積回路装置および半導体集積回路装置の検査方法 |
JP2022115179A (ja) * | 2021-01-28 | 2022-08-09 | キオクシア株式会社 | 半導体集積回路装置及びその動作方法 |
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JPS5611369A (en) * | 1979-07-09 | 1981-02-04 | Fujitsu Ltd | Diagnostic system of lsi |
JPH0526979A (ja) * | 1991-07-19 | 1993-02-05 | Kawasaki Steel Corp | テスト容易化回路 |
JPH0643222A (ja) * | 1992-07-24 | 1994-02-18 | Matsushita Electron Corp | 半導体装置 |
JPH06194423A (ja) * | 1992-12-22 | 1994-07-15 | Matsushita Electric Works Ltd | 動作モード切り替え方式 |
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US5619461A (en) * | 1995-07-28 | 1997-04-08 | Micron Quantum Devices, Inc. | Memory system having internal state monitoring circuit |
DE69836625D1 (de) * | 1997-03-21 | 2007-01-25 | Matsushita Electric Ind Co Ltd | Prüfen der funktionellen blöcke in einer integrierten halbleiterschaltung |
JP2000266816A (ja) | 1999-03-16 | 2000-09-29 | Nec Corp | 半導体装置の試験方法 |
JP2002318265A (ja) * | 2001-04-24 | 2002-10-31 | Hitachi Ltd | 半導体集積回路及び半導体集積回路のテスト方法 |
JP3761439B2 (ja) | 2001-10-09 | 2006-03-29 | 松下電器産業株式会社 | Lsiテスト方法および装置 |
JP2004021833A (ja) * | 2002-06-19 | 2004-01-22 | Renesas Technology Corp | 自己テスト機能内蔵半導体集積回路およびそれを備えたシステム |
JP3544203B2 (ja) | 2002-08-30 | 2004-07-21 | 沖電気工業株式会社 | テスト回路、そのテスト回路を内蔵した半導体集積回路装置、及びそのテスト方法 |
-
2005
- 2005-09-27 JP JP2007500418A patent/JP4516110B2/ja not_active Expired - Fee Related
- 2005-09-27 WO PCT/JP2005/017727 patent/WO2006080111A1/ja not_active Application Discontinuation
- 2005-09-27 CN CNA2005800473659A patent/CN101111776A/zh active Pending
- 2005-09-27 US US11/795,904 patent/US7739571B2/en not_active Expired - Fee Related
Patent Citations (4)
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JPS5611369A (en) * | 1979-07-09 | 1981-02-04 | Fujitsu Ltd | Diagnostic system of lsi |
JPH0526979A (ja) * | 1991-07-19 | 1993-02-05 | Kawasaki Steel Corp | テスト容易化回路 |
JPH0643222A (ja) * | 1992-07-24 | 1994-02-18 | Matsushita Electron Corp | 半導体装置 |
JPH06194423A (ja) * | 1992-12-22 | 1994-07-15 | Matsushita Electric Works Ltd | 動作モード切り替え方式 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2021181830A1 (ja) * | 2020-03-09 | 2021-09-16 | ||
WO2021181830A1 (ja) * | 2020-03-09 | 2021-09-16 | 日立Astemo株式会社 | 物理量測定装置 |
JP7354409B2 (ja) | 2020-03-09 | 2023-10-02 | 日立Astemo株式会社 | 物理量測定装置 |
Also Published As
Publication number | Publication date |
---|---|
US7739571B2 (en) | 2010-06-15 |
JP4516110B2 (ja) | 2010-08-04 |
JPWO2006080111A1 (ja) | 2008-06-19 |
US20080141089A1 (en) | 2008-06-12 |
CN101111776A (zh) | 2008-01-23 |
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