CN116372298A - Auxiliary device for chip cap opening pretreatment welding and welding method - Google Patents
Auxiliary device for chip cap opening pretreatment welding and welding method Download PDFInfo
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- CN116372298A CN116372298A CN202310353288.XA CN202310353288A CN116372298A CN 116372298 A CN116372298 A CN 116372298A CN 202310353288 A CN202310353288 A CN 202310353288A CN 116372298 A CN116372298 A CN 116372298A
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- welding
- heating plate
- heating
- plate
- cap opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a chip cap opening pretreatment welding auxiliary device and a welding method, and relates to the technical field of chip cap opening; a heating plate for heating the copper sheet is arranged on the welding seat; specifically, the method comprises the following steps; the copper plate welding device comprises a welding seat, a copper plate, a pressing module, a button switch, a pressing module and a pressing module, wherein the welding seat is arranged on one side of the welding seat, the pressing module is used for pressing the copper plate on the welding seat, the copper plate is placed above the heating plate, then the pressing module gives a pressing acting force towards the heating plate to the copper plate, the button switch controls the heating plate to be opened, the heating plate heats up and heats up the copper plate, tin wires are attached to the copper plate, then an operator uses tweezers to attach a base island and a pin of a plastic package body to the melted tin wires, and then the heating plate is closed, so that the connection and the fixation of the copper plate, the base island and the pin can be realized after tin is cooled; compared with the existing method for continuously heating the lower part of the copper plate by adopting the electric soldering iron, the method is more convenient to operate.
Description
Technical Field
The invention relates to the technical field of chip cap opening, in particular to a chip cap opening pretreatment welding auxiliary device and a welding method.
Background
The chip opening cap is called chip opening, the surface layer material of the packaged integrated circuit chip is removed by using high-power high-energy laser beams to sweep, the surface layer material is etched layer by layer in a physical mode according to a preset track until the metal antenna structure inside the chip is exposed, and materials are prepared for subsequent chip failure analysis, so that a detector can conveniently test the reliability and the performance of the chip.
The chip is generally welded on the base island, the circuit on the chip is bonded with an external pin through a bonding wire or a metal belt (an aluminum belt and a copper belt), after the plastic package body is removed by opening the cap, the chip needs to be moved frequently and is easy to break from the bonding wire or a bonding node, in order to avoid the breaking condition, the lower parts of the pin and the base island are commonly welded to a copper sheet through a soldering mode in the prior art, and thus, the copper sheet can be moved during the subsequent movement;
in the prior art, referring to the attached drawing 1 of the specification, a workbench is generally provided with a metal shaping hose, the end part of the metal shaping hose (gooseneck) is provided with a clip, a copper sheet is clamped by the clip, then an electric soldering iron is used for heating a tin wire manually, and the tin wire is melted and falls onto a copper plate; the lower part of the copper plate is continuously heated by an electric soldering iron, so that tin falling to the copper plate is in a molten state, and simultaneously, the plastic package body is clamped by tweezers, so that pins and islands are attached to the molten tin, and after the electric soldering iron is removed, the connection of the pins, the islands and the copper sheets can be realized after the tin is cooled.
By adopting the mode, the requirement on operators is high, the two hands are required to cooperatively operate, and the use is troublesome.
Disclosure of Invention
The invention aims to provide a chip cap opening pretreatment welding auxiliary device, which solves the following technical problems:
(1) When the copper sheet is moved, the bonding wire or the metal belt is easy to break with the pins;
(2) When connecting pin, base island and copper sheet, need a plurality of operating personnel collaborative work, it is comparatively troublesome.
The aim of the invention can be achieved by the following technical scheme:
the auxiliary device for the pretreatment and welding of the chip cap opening comprises a base, wherein a support column is arranged on the base, and the tail end of the support column is connected with a welding seat;
a heating plate for heating the copper sheet is arranged on the welding seat; specifically, the method comprises the following steps;
the copper sheet welding device further comprises a pressing module which is arranged on one side of the welding seat and used for pressing the copper sheet on the welding seat.
Preferably, the heating temperature of the heating plate ranges from 320 ℃ to 400 ℃.
Preferably, a button switch can be arranged on the base and is connected with the heating plate through a controller.
Preferably, the pressing module comprises a pressing block arranged on one side of the welding seat, and one side of the pressing block extends to the heating plate;
wherein, the briquetting opposite side is connected with the elasticity module.
Preferably, the compaction module further comprises a plurality of groups of supporting frames arranged on the base, the tail ends of the supporting frames are connected with first check blocks, guide rods are arranged on the first check blocks, and the other ends of the guide rods are connected with second check blocks.
Preferably, the guide rod is slidably provided with a collar fixedly connected with the pressing block, and the guide rod between the collar and the second stop block is provided with a spring.
Preferably, a heat insulation layer is arranged between the welding seat and the heating plate.
Preferably, the heat insulation layer is made of heat insulation cotton material.
A chip cap opening pretreatment welding method comprises the following steps:
s1, pulling the pressing block to move towards a direction away from the heating plate, placing the copper sheet above the heating plate, and applying a pressing force towards the heating plate to the copper sheet through the pressing module to fix the copper sheet;
s2, controlling the heating plate to be opened through the button switch, and heating the copper plate by the heating plate;
s3, attaching tin wires to the copper plate, and attaching a base island and pins of the plastic package body to the melted tin wires by using tweezers by an operator;
s4, closing the heating plate, and after cooling tin, connecting and fixing the copper sheet with the base island and the pins.
The invention has the beneficial effects that:
(1) According to the invention, a copper sheet is placed above a heating plate, then a pressing force towards the heating plate is given to the copper sheet through a pressing module, the heating plate is controlled to be opened through a button switch, the heating plate heats up and heats up the copper plate, tin wires are attached to the copper plate, then an operator attaches a base island and pins of a plastic package body to the melted tin wires through tweezers, then the heating plate is closed, and after tin is cooled, connection and fixation of the copper sheet, the base island and the pins can be realized; compared with the existing method for continuously heating the lower part of the copper plate by adopting the electric soldering iron, the method is more convenient to operate and higher in efficiency;
(2) In the invention, a heat insulation layer is arranged between the welding seat and the heating plate; the heat insulation layer is made of heat insulation materials such as heat insulation cotton and the like so as to perform heat insulation treatment, so that the temperature of the welding seat is prevented from rising too fast, and the heat transfer efficiency of the heating plate is reduced;
(3) The invention can control the opening and closing of the heating plate by an operator directly through the button switch, and has very convenient operation.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of a plastic package;
FIG. 3 is a schematic diagram of a chip pre-capping processing welding auxiliary device according to the first embodiment of the present invention;
FIG. 4 is a schematic diagram II of a chip pre-capping treatment welding auxiliary device according to the present invention;
fig. 5 is a schematic diagram III of a chip pre-cap-opening treatment welding auxiliary device.
In the figure: 1. a base; 2. a heating plate; 3. copper plate; 4. a plastic package body; 5. a support frame; 101. a support column; 102. a welding seat; 103. a push button switch; 401. a base island; 402. pins; 501. a first stopper; 502. a collar; 503. a guide rod; 504. a spring; 505. a second stopper; 506. a handle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 2-3, the invention discloses a chip cap opening pretreatment welding auxiliary device, which comprises a base 1, wherein a support column 101 is arranged on the base 1, the tail end of the support column 101 is connected with a welding seat 102, in one implementation of the embodiment, the support column 101 can be fixed with the base 1 or the welding seat 102 in a welding or bolting mode, and can also be integrally formed by adopting a mold, so that the device is not limited;
a heating plate 2 for heating the copper sheet is arranged on the welding seat 102; specifically, in this embodiment, the heating plate 2 is an electric heating device, and the heating temperature of the electric heating plate 2 ranges from 320 ℃ to 400 ℃, so that tin wires can be effectively melted;
furthermore, the base 1 can be provided with the button switch 103, the button switch 103 is connected with the heating plate 2 through the controller, and in the practical application process, an operator can directly control the opening and closing of the heating plate 2 through the button switch 103, so that the operation is very convenient; wherein the heating plate 2 is arranged in a rectangular structure;
the copper sheet welding device further comprises a compression module, wherein the compression module is arranged on one side of the welding seat 102 and used for compressing the copper sheet on the welding seat 102; it can be stated that, in specific use, a copper sheet is placed above the heating plate 2, then a pressing force towards the heating plate 2 is given to the copper sheet through the pressing module, the heating plate 2 is controlled to be opened through the button switch 103, the heating plate 2 heats the copper plate 3 in a heating way, tin wires are attached to the copper plate 3, then an operator attaches the base island 401 and the pins 402 of the plastic package body 4 to the melted tin wires through tweezers, then the heating plate 2 is closed, and after tin is cooled, connection and fixation of the copper sheet, the base island 401 and the pins 402 can be realized; compared with the existing electric soldering iron which is used for continuously heating the lower part of the copper plate 3, the embodiment is more convenient to operate and higher in efficiency.
Example 2
On the basis of embodiment 1, referring to fig. 4, the pressing module includes a pressing block arranged on one side of the welding seat 102, wherein one side of the pressing block extends onto the heating plate 2, and the other side of the pressing block is connected with the elastic module; specifically, a handle 506 is further arranged on the pressing block, before the copper plate 3 is placed on the heating plate 2 in the practical application process, the pressing block is pulled to move towards the direction away from the heating plate 2 through the handle 506, at the moment, the elastic module has elastic storage force, after the copper plate 3 is placed, the handle 506 is loosened, the elastic module drives the pressing block to move towards the direction of the heating plate 2 under the action of elastic force, and the part of the copper plate 3 extending above the heating plate 2 can be pressed on the heating plate 2 for fixing;
referring to fig. 5, as a further scheme of the present embodiment, the compression module further includes a plurality of groups of support frames 5 disposed on the base 1, the end of each support frame 5 is connected with a first stop block 501, a guide rod 503 is disposed on the first stop block 501, and the other end of the guide rod 503 is connected with a second stop block 505; wherein, a collar 502 fixedly connected with the pressing block is slidably arranged on the guide rod 503, and a spring 504 is arranged on the guide rod 503 between the collar 502 and the second stop block 505; it should be noted that, in the process that the pressing block is moved away from the heating plate 2, the pressing block synchronously drives the collar 502 to move towards the second stop block 505 on the guide rod 503, the collar 502 compresses the spring 504 in the moving process, so that the spring 504 has elastic force, after the copper plate 3 is placed on the heating plate 2, the spring 504 gives the pressing block an acting force towards the heating plate 2 under the action of the elastic force, so as to press the copper plate 3 on the heating plate 2, the stability is higher, and the phenomenon that the copper plate 3 shakes during welding is avoided;
further, a heat insulation layer is arranged between the welding seat 102 and the heating plate 2; specifically, the heat insulation layer is made of heat insulation materials such as heat insulation cotton and the like so as to perform heat insulation treatment, so that the temperature of the welding seat 102 is prevented from rising too fast, and the heat transfer efficiency of the heating plate 2 is reduced;
it should be noted that, the welding seat 102 and the heat insulation layer are of an L-shaped structure, when the heating plate 2 is arranged on the heat insulation layer, three sides of the heating plate 2 are in direct contact with air, so that subsequent cooling is facilitated, and meanwhile, the welding seat 102 and the heat insulation layer of the L-shaped structure have a limiting effect on the heating plate 2, so that stability is higher.
Example 3
A chip cap opening pretreatment welding method comprises the following steps:
s1, pulling the pressing block to move towards a direction away from the heating plate 2, placing the copper sheet above the heating plate 2, applying a pressing force towards the heating plate 2 to the copper sheet through the pressing module, and fixing the copper sheet 3;
s2, controlling the heating plate 2 to be opened through the button switch 103, and heating the copper plate 3 by the heating plate 2;
s3, attaching tin wires to the copper plate 3, and attaching the base island 401 and the pins 402 of the plastic package body 4 to the melted tin wires by using tweezers by an operator;
s4, closing the heating plate 2, and after cooling tin, connecting and fixing the copper sheet with the base island 401 and the pins 402 can be achieved.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. The auxiliary device for the chip cap opening pretreatment welding comprises a base (1), wherein a support column (101) is arranged on the base (1), and the tail end of the support column (101) is connected with a welding seat (102);
the copper sheet heating device is characterized in that a heating plate (2) for heating the copper sheet is arranged on the welding seat (102);
the copper sheet welding device further comprises a pressing module which is arranged on one side of the welding seat (102) and used for pressing the copper sheet on the welding seat (102).
2. The chip cap opening pretreatment welding auxiliary device according to claim 1, wherein the pressing module comprises a pressing block arranged on one side of the welding seat (102), and one side of the pressing block extends to the heating plate (2);
wherein, the briquetting opposite side is connected with the elasticity module.
3. The auxiliary device for chip cap opening pretreatment welding according to claim 2, wherein the pressing module further comprises a plurality of groups of supporting frames (5) arranged on the base (1), the tail ends of the supporting frames (5) are connected with first stop blocks (501), and guide rods (503) connected with second stop blocks (505) are arranged on the first stop blocks (501).
4. A chip cap opening pretreatment welding auxiliary device according to claim 3, characterized in that a lantern ring (502) fixedly connected with a pressing block is slidably arranged on the guide rod (503), and a spring (504) is arranged on the guide rod (503) between the lantern ring (502) and the second stop block (505).
5. The chip cap opening pretreatment welding auxiliary device according to claim 1, wherein the heating temperature of the heating plate (2) ranges from 320 ℃ to 400 ℃.
6. The chip cap opening pretreatment welding auxiliary device according to claim 5, wherein a button switch (103) is arranged on the base (1), and the button switch (103) is connected with the heating plate (2) through a controller.
7. The auxiliary device for chip cap opening pretreatment welding according to claim 1, wherein a heat insulation layer is arranged between the welding seat (102) and the heating plate (2).
8. The chip cap opening pretreatment welding auxiliary device according to claim 7, wherein the heat insulation layer is made of heat insulation cotton materials.
9. The chip cap opening pretreatment welding method is characterized by comprising the following steps of:
s1, pulling the pressing block to move towards a direction away from the heating plate (2), placing the copper sheet above the heating plate (2), and applying a pressing force towards the heating plate (2) to the copper sheet through the pressing module to fix the copper plate (3);
s2, controlling the heating plate (2) to be opened through the button switch (103), and heating the copper plate (3) by the heating plate (2);
s3, attaching tin wires to the copper plate (3), and attaching the base island (401) and the pins (402) of the plastic package body (4) to the melted tin wires by using tweezers by an operator;
s4, closing the heating plate (2), and after cooling tin, connecting and fixing the copper sheet with the base island (401) and the pins (402) can be achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310353288.XA CN116372298A (en) | 2023-04-04 | 2023-04-04 | Auxiliary device for chip cap opening pretreatment welding and welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310353288.XA CN116372298A (en) | 2023-04-04 | 2023-04-04 | Auxiliary device for chip cap opening pretreatment welding and welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116372298A true CN116372298A (en) | 2023-07-04 |
Family
ID=86976429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310353288.XA Pending CN116372298A (en) | 2023-04-04 | 2023-04-04 | Auxiliary device for chip cap opening pretreatment welding and welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116372298A (en) |
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2023
- 2023-04-04 CN CN202310353288.XA patent/CN116372298A/en active Pending
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