CN101281548A - Element layout system and method - Google Patents

Abstract

A system and method for laying elements are carried in the laying software for designing PCB, which contains laying region with elements to be laid, detecting whether there is part near the element according to the priority, reading the part information and generating a trigger signal to output, when receiving the trigger signal, inquiring the layout rule corresponding to the part according to the read part information, laying the element to be laid to the position apart from the part by a preset laying distance according to the inquired layout rule to meet the design rule checking requirement, therefore, the layout efficiency of the elements is improved, the operation flow is simplified, and the visibility of the layout of the elements is improved.

Description

Component placement system and method

technical field

The present invention relates to a component layout technology, and more particularly, to a system and method for loading components into a layout software to arrange components in a layout area of a printed circuit board.

Background technique

The layout program of the existing printed circuit board (PCB) is usually designed by the electronic engineer to design the circuit diagram of the printed circuit board, and after drawing, it is converted into a layout diagram (layout), and secondly, the mechanical engineer designs and draws the The structural diagram of the printed circuit board, and then let the layout engineer perform the placement (placement) operation to place the electronic components on the predetermined position of the printed circuit board according to the circuit diagram or the structural diagram, and finally, let the layout engineer place it on the printed circuit board The electronic components are connected by routing to complete the design of the layout, so that the circuit board manufacturer can complete the manufacture of the printed circuit board according to the layout.

In the above-mentioned layout process, the placement of the electronic component is an important step. In the prior art, the placement operation is generally searched by the layout engineer in the electronic component database in a manual way, which is related to the circuit diagram or the mechanical package. The electronic components shown in the diagram match the electronic components and place them one by one in the correct position in the printed circuit board, where the electronic components such as resistors, capacitors or other chips are marked in the circuit diagram, and the mechanism diagram is marked with Mechanism elements such as drilling or screw holes involved in the mechanism packaging of the circuit board make the placement process of the electronic components tedious and inefficient; The large number of components, such as hundreds or even thousands of different types of electronic components, will increase the workload of layout engineers and increase the probability of errors in the layout process, which will easily lead to placement errors and It takes a lot of time to place the situation, and the probability of this kind of situation is proportional to the number of electronic components on the circuit board; moreover, the electronic components that are laid out are checked later and the electronic components that are checked as errors need to be checked It also needs to spend a lot of time and energy when modifying and replacing, which is obviously extremely unreasonable for manufacturers who want to improve work efficiency and reduce production costs to increase product competitiveness.

In order to overcome the shortcomings caused by the above-mentioned existing manual placement of electronic components, some layout software (such as EDA software) can provide the function of automatic layout, but the automatic layout function provided by the software is actually not operable. Make the components to be placed automatically avoid other nearby electronic components such as through components (PTH), traces, pads or vias, so the completed layout results often fail to pass the design If the rule check (DRC, Design Rule Check) does not meet the design requirements, at this time, it is still necessary to manually adjust and modify with the help of layout engineers, which is also time-consuming and laborious and inevitably leads to low work efficiency. In addition, electronic components are automatically placed by software, and the placed electronic components are often messy, which affects the appearance of the circuit board.

Therefore, how to overcome the shortcomings of the above-mentioned prior art, and then provide a technology that can automatically layout electronic components, avoid the complicated operation, time-consuming and production cost caused by human operation in the prior art, frequent layout errors, and increase the number of circuits The overall visibility of the board is actually a problem that needs to be solved at present.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide a component placement system and method that can quickly and accurately place the components to be placed on the circuit board during the component placement process.

Another object of the present invention is to provide a component layout system and method that can simplify the operation process, save operation time and reduce production cost.

Yet another object of the present invention is to provide a device placement system and method that increases placement visibility after the placement operation is completed.

To achieve the above objects and others, the present invention provides a component layout system and method. The component layout system is loaded into the layout software for designing a printed circuit board (PCB), wherein the printed circuit board has a layout area, and the layout area is coated with the information of the components to be laid out , the component placement system includes: a setting module, used to set the placement priority levels of components related to the components to be placed and the placement rules of the components to be placed and the components in each priority level; a detection module, used to When a component is selected by the layout software to execute the component layout operation, according to the layout priority set by the setting module, it is detected whether there is a component near the component to be placed, and when a component is detected, the component is read information and generate a trigger signal for output; the query module is used to query the setting module for the component according to the read information of the component when receiving the trigger signal output by the detection module Corresponding layout rules; and a layout module, which is used to arrange the component to be placed to a position with a preset layout distance from the component according to the layout rule queried by the query module, so as to comply with the design rule check (DRC, DesignRule Check) request.

The present invention also provides a component layout method, which is loaded into the layout software for designing a printed circuit board (Printed Circuit Board, PCB), wherein the printed circuit board has a layout area, and the layout area is coated with the Information about the components to be placed, the method includes the following steps: pre-setting the layout priority levels of components related to the components to be placed and the layout rules of the components to be placed and the components in each priority level; when a layout software is used to select a When the component is performing the component placement operation, it is sequentially detected whether there is a component near the component to be placed according to the set priority level of the layout, and when a component is detected, the information of the component is read and a trigger signal is generated. output; when receiving the trigger signal, according to the read information of the component, query the layout rule corresponding to the component; The position of the preset layout spacing, so as to meet the requirements of Design Rule Check (DRC, Design Rule Check).

The component placement system and method of the present invention pre-set the placement priority levels of the components related to the components to be placed and the layout rules of the components to be placed and the components in each priority level, so that when the component placement operation is performed, the detection Whether there is a component near the component to be placed, and according to the read information of the component, query the layout rule corresponding to the component, so as to arrange the component to be placed to a preset distance from the component Layout the position of the spacing to complete the layout of the components, so as to improve the efficiency of component layout, and avoid the layout results that fail to pass the design rule check (DRC, Design Rule Check) in the prior art and do not meet the design requirements. problems, streamline operations and save time. At the same time, the component placement system and method of the present invention can keep the placed component in a line-aligned state with at least one end of a nearby component, thereby increasing the aesthetics of component placement.

Description of drawings

Fig. 1 is a schematic block diagram of the basic structure of the component layout system of the present invention;

Fig. 2 is a schematic flow chart of the component layout method of the present invention;

3 is a schematic diagram of an application embodiment of the component layout system and method of the present invention;

4 is a schematic diagram of another application embodiment of the component layout system and method of the present invention; and

FIG. 5 is a schematic diagram of another application embodiment of the component layout system and method of the present invention.

Description of main component symbols

1 component placement system

10 setting module

12 detection module

14 query module

16 layout modules

30 Components to be laid out

32PTH components

33 resistors

320, 330 frame

34 through holes

(X0, Y0), (X1, Y1) coordinates

S0, S1, S2 minimum spacing

Steps from S200 to S210

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to FIG. 1 , which is a schematic block diagram of the basic structure of the component placement system of the present invention. The component layout system 1 is loaded into the layout software for designing a printed circuit board (Printed Circuit Board, PCB) through a data processing device, wherein the printed circuit board has a layout area, and the layout area is coated with required Information about the routed component. In this embodiment, the layout software is, for example, EDA (Essential Electronic Design Automation, electronic design automation) software, the layout area is set on the front and back of the printed circuit board, and the information of the component refers to the product that indicates the component model.

As shown in the figure, the component layout system 1 of the present invention includes: a setting module 10 , a detection module 12 , a query module 14 and a layout module 16 .

The setting module 10 is used for setting the layout priority levels of the components related to the components to be placed and the layout rules of the components to be placed and the components in each priority level. In this embodiment, the components to be laid are, for example, resistors, capacitors, inductors, or chips, and the components are, for example, PTH (Platating Through Hole) components, other components except PTH components, or include signal lines (trace), solder Conductors including pads and vias, and the order of layout priority of each component is PTH (Platating Through Hole) components, other components except PTH components, and signal lines (trace ), conductors including pads and vias. In addition, the layout rule specifically means that there is a preset minimum distance between the component to be deployed and nearby components, and at least one end of the component to be deployed and nearby components is kept in line alignment.

The detection module 12 is used to sequentially detect whether there is a component near the component to be placed according to the layout priority level set by the setting module 10 when a component is selected by the layout software to execute the component layout operation, and when detecting When a component is detected, the information of the component is read and a trigger signal is generated for output. In this embodiment, the detection module 12 detects whether there is a PTH component near the surface opposite to the layout surface of the component to be deployed on the printed circuit board, and then sequentially detects whether there is a PTH component near the layout surface of the component to be deployed. There are other components and conductors such as traces, pads, and vias. The information of the component refers to the product model of the component and the position coordinates of the component arranged on the printed circuit board. In addition, the detection module 12 detects the layout area of the printed circuit board one by one, for example, from left to right and from top to bottom.

The query module 14 is configured to query the setting module 10 for the layout rule corresponding to the component according to the read information of the component when receiving the trigger signal output by the detection module 12 .

The placement module 16 is used for placing the component to be placed at a position separated from the component by a preset placement distance according to the placement rule queried by the query module 14 . In this embodiment, the layout module 16 automatically arranges the component to be placed according to the position coordinates of the component and the minimum spacing and alignment between the component to be placed and the component set in the layout rule. Arranged at the best suitable position, so that the arranged components meet the requirements of Design Rule Check (DRC, Design Rule Check) and achieve a neat and visible effect.

The flow of the component layout method of the present invention executed by the component layout system 1 of the present invention is shown in FIG. The layout priority levels of the components and the layout rules of the component to be placed and the component in each priority level. Then, go to step S202.

In step S202, when a component is selected by the layout software to execute the component placement operation, the detection module 12 is ordered to detect whether there is a component near the component to be placed according to the set placement priority, and if so, proceed Go to step S204; if not, go to step S210. In this embodiment, the detection action specifically includes detecting whether there is a PTH component near the surface opposite to the layout surface of the component to be placed on the printed circuit board, and then sequentially detecting whether there is a PTH component near the layout surface of the component to be placed There are other components and conductors such as traces, pads, and vias.

In step S204, the detection module 12 is made to read the information of the component and generate a trigger signal for output. Then, go to step S206.

In step S206 , when the query module 14 receives the trigger signal output by the detection module 12 , it queries the layout rule corresponding to the component according to the read information of the component. In this embodiment, the layout rule specifically means that there is a preset minimum distance between the component to be placed and nearby components, and at least one end of the component to be placed and the nearby components is kept in line alignment. Then, go to step S208.

In step S208, the layout module 16 is ordered to arrange the component to be placed at a position with a preset layout distance from the component according to the layout rule queried by the query module 14, so that the component to be placed meets the design rule check (DRC, Design Rule Check) requirements.

In step S210 , the layout module 16 is made to perform conventional layout operations through the layout software.

Please refer to FIG. 3 , which shows a schematic diagram of an application embodiment of the device layout system and method of the present invention. As shown in the figure, in this embodiment, there is a PTH element 32, such as a capacitor, near the opposite surface of the layout surface of the component 30 on the printed circuit board 3, wherein the PTH element 32 has a complex for A frame 320 of a clear area is formed. When the user selects the component 30 to be placed by the layout software to be placed on the relative right side of the PTH component 32, the detection module 12 is pre-made to perform a detection action, and the detection module 12 detects the PTH Component 32, read information such as the product model of the PTH component 32 and its location coordinates on the printed circuit board, and simultaneously generate a trigger signal for output. In this embodiment, the position coordinates refer to the right frame coordinates of the outer frame 320 of the PTH device 32 related to the device 30 to be routed, for example (X0, Y0). Secondly, when the query module 14 receives the trigger signal output by the detection module 12, according to the read information of the component, it searches the setting module 10 for the layout rule corresponding to the component. In an embodiment, the wiring rule is, for example, the abscissa alignment, and there is a predetermined minimum distance S0 between the element 30 to be laid and the PTH element 32 . Then, according to the layout rule queried by the query module 14 , the layout module 16 arranges the component 30 to be placed at a position keeping the minimum distance S0 from the component (X0+S0, Y0).

Please refer to FIG. 4 , which shows a schematic diagram of another application embodiment of the device layout system and method of the present invention. As shown in the figure, in this embodiment, the layout surface of the component to be deployed 30 on the printed circuit board is an element 33 such as a resistor with respect to the left side of the component to be deployed 30, and the right frame coordinates of its outer frame 330 If it is (X1, Y1), then the component 30 to be placed is placed at a position (X1+S1, Y1) maintaining a preset minimum distance S1 from the component 33 according to the layout rules.

Please refer to FIG. 5 , which shows a schematic diagram of another application embodiment of the device layout system and method of the present invention. As shown in the figure, in this embodiment, the layout surface of the component 30 (for example, a chip with multiple pins) on the printed circuit board has, for example, a through hole (via ) component 34, the component 30 to be placed is placed at a position that maintains a preset minimum distance S2 from the component 34 according to the layout rule.

To sum up, the component placement system and method of the present invention, when performing a placement operation, when a component is selected by the placement software to execute the component placement operation, the components to be placed are sequentially detected according to the preset placement priority Whether there is a component nearby, and when a component is detected, read the component information and query the layout rule corresponding to the component accordingly, so that the component to be placed can be automatically placed to the corresponding layout rule according to the layout rule Components are separated by a preset layout spacing, so as to avoid low work efficiency and frequent errors in the layout process due to the large number of components to be processed and human negligence in the existing manual operation process, improve work efficiency and ensure The correctness of component layout; in addition, the component layout system and method of the present invention can automatically arrange the components to be placed on the circuit board, compared with the manual layout of components in the prior art, which can simplify the operation process and Save operating time, thereby reducing the production cost of designing circuit boards; at the same time, the component layout system and method of the present invention can keep the components after layout and at least one end of the nearby components in line alignment, thereby increasing the aesthetics of component layout .

The above-mentioned embodiments are only illustrative to illustrate the principles and effects of the present invention, and are not intended to limit the present invention, that is, the present invention can still be modified in other ways. Therefore, any person skilled in the art can modify the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be listed in the claims.

Claims (12)

1. element arranging system, carry in order to by in the laying software of data processing equipment designing printed circuit board, wherein, this printed circuit board (PCB) has the zone of laying, and be coated with the information of the element of required laying on this laying zone, this element arranging system comprises:

Setting module, in order to setting and the laying priority level of waiting to lay the relevant parts of element, and this waits to lay the laying rule of element and these parts in each priority level;

Detecting module, in order to when choosing an element by laying software with executive component laying operation, the laying priority level that sets according to this setting module, whether that detects in regular turn that this waits to lay element neighbouringly has parts, and when having detected these parts, read the information of these parts and produce a trigger pip and export;

Enquiry module, when being used to receive the trigger pip that this detecting module exports, according to the information of these parts that read, inquiry is regular with corresponding layings of these parts to this setting module; And

Lay module, in order to the laying rule of inquiring about according to this enquiry module, with this wait to lay element lay to the position of these parts at a distance of a default laying spacing.

2. element arranging system according to claim 1, wherein, this element is to be selected from one of them of resistance, electric capacity, inductance or wafer.

3. element arranging system according to claim 1, wherein, these parts are the one kind of conductors that are selected from PTH element or signal wire, pad or through hole.

4. element arranging system according to claim 3, wherein, this laying priority level is with PTH element override.

5. element arranging system according to claim 1, wherein, the information of these parts is meant the product type of these parts and is laid in the location coordinate of this printed circuit board (PCB).

6. element arranging system according to claim 1, wherein, this laying rule is to refer to that specifically this waits to lay between element and near parts and have a minimum spacing, and makes this wait to lay at least one end retention wire aligned condition of element and near parts.

7. element distribution method, carry in order to by in the laying software of data processing equipment designing printed circuit board, wherein, this printed circuit board (PCB) is to have the zone of laying, and be coated with the information of the element of required laying on this laying zone, this method may further comprise the steps:

(1) preestablishes and wait to lay the laying priority level of the relevant parts of element and this waits to lay the laying rule of element and these parts in each priority level;

(2) when when laying software and choose an element and lay operation with executive component, according to the laying priority level that sets, whether that detects in regular turn that this waits to lay element neighbouringly has parts, if then proceed to step (3); If not, process ends step then;

(3) read the information of these parts and produce a trigger pip and export;

(4) when receiving this trigger pip, according to the information of these parts that read, inquiry and the corresponding laying rule of these parts; And

(5) according to the laying rule of being inquired about, with this wait to lay element lay to the position of these parts at a distance of a default laying spacing.

8. element distribution method according to claim 7, wherein, this element is to be selected from one of them of resistance, electric capacity, inductance or wafer.

9. element distribution method according to claim 7, wherein, these parts are the one kind of conductors that are selected from PTH element or signal wire, pad or through hole.

10. element distribution method according to claim 9, wherein, this laying priority level is with PTH element override.

11. element distribution method according to claim 7, wherein, the information of these parts is meant the product type of these parts and is laid in the location coordinate of this printed circuit board (PCB).

12. element distribution method according to claim 7, wherein, this laying rule is to refer to that specifically this waits to lay between element and near parts and have a minimum spacing, and makes this wait to lay at least one end retention wire aligned condition of element and near parts.

Images