CN118483457A - Integrated circuit test fixture with position correction function - Google Patents
Integrated circuit test fixture with position correction function Download PDFInfo
- Publication number
- CN118483457A CN118483457A CN202410433619.5A CN202410433619A CN118483457A CN 118483457 A CN118483457 A CN 118483457A CN 202410433619 A CN202410433619 A CN 202410433619A CN 118483457 A CN118483457 A CN 118483457A
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- CN
- China
- Prior art keywords
- plate
- integrated circuit
- adjusting
- clamping
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- 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
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
-
- 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
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
- G01R31/2891—Features relating to contacting the IC under test, e.g. probe heads; chucks related to sensing or controlling of force, position, temperature
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses an integrated circuit test fixture with a position correction function, which comprises a clamping table, wherein fixing plates are vertically arranged at two ends of the top of the clamping table respectively, the surface of each fixing plate is movably connected with a sleeve, one end of each sleeve extends to the inner side of the clamping table and is connected with a clamping mechanism, the other end of each sleeve is connected with a screw rod I, a movable plate is connected to the side wall of the clamping table in a sliding manner, and two ends of each movable plate extend to two sides of the clamping table respectively and are vertically connected with a driving plate. According to the invention, after the clamping mechanism is used for clamping the integrated circuit board, the movable plate is driven by the motor to horizontally displace, so that the horizontal position of the integrated circuit board on the clamping table can be adjusted left and right, the adjusting rod is driven by the motor to rotate, and the second adjusting plate is pushed to move by the threaded adjusting plate on the adjusting rod, so that the horizontal position of the integrated circuit board is adjusted back and forth, the effect of correcting the circuit board is achieved, the circuit board is not required to be disassembled again, the operation steps are reduced, and the testing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of integrated circuit testing, in particular to an integrated circuit testing fixture with a position correction function.
Background
An integrated circuit is a miniature electronic device or component, which adopts a certain technology to interconnect the elements such as transistors, resistors, capacitors, inductors and the like required in a circuit together, and is manufactured on a small or several small semiconductor wafers or dielectric substrates, and then the semiconductor wafers or dielectric substrates are packaged in a tube shell to form a miniature structure with the required circuit function, wherein all the elements are structurally integrated, so that the electronic elements are greatly advanced towards microminiaturization, low power consumption, intellectualization and high reliability, and most of the semiconductor industry today uses silicon-based integrated circuits. Before the integrated circuit board is formally put into use, quality inspection operation is carried out on the integrated circuit board so as to greatly improve the yield of the integrated circuit board, however, in the prior art, the integrated circuit board is sequentially placed on the detection panel so as to observe whether the testing performance parameters of the integrated circuit board accord with the standards.
At present, the existing integrated circuit test fixture is inconvenient to adjust the position of an integrated circuit board after clamping and fixing the integrated circuit board, needs to be disassembled and adjusted again, is complex in operation, consumes long time and affects detection efficiency, and therefore the integrated circuit test fixture with the position correction function is provided.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides an integrated circuit test fixture with a position correction function, which solves the problems that: the existing integrated circuit test fixture is inconvenient to adjust the position of an integrated circuit board after clamping and fixing the integrated circuit board, and the integrated circuit test fixture needs to be detached and adjusted again, so that the integrated circuit test fixture is complex in operation, long in time consumption and capable of affecting the detection efficiency.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the integrated circuit test fixture with the position correction function comprises a clamping table, wherein fixing plates are vertically arranged at two ends of the top of the clamping table respectively, a sleeve is movably connected to the surface of each fixing plate, one end of each sleeve extends to the inner side of the clamping table and is connected with a clamping mechanism, the other end of each sleeve is connected with a first screw rod, a movable plate is connected to the side wall of the clamping table in a sliding manner, two ends of each movable plate extend to two sides of the clamping table respectively and are vertically connected with driving plates, a first motor is fixedly arranged on the outer wall of each driving plate, the output end of each first motor is connected with each first screw rod, the lower ends of the surfaces of the two fixing plates are rotationally connected with transmission rods, and the end parts of the transmission rods penetrate through the driving plates;
The clamping mechanism comprises a fixed box, a first adjusting plate and a clamping plate, wherein the fixed box is arranged at the end part of the sleeve, a second adjusting plate is arranged at the back of the first adjusting plate and is in sliding connection with the fixed box through the second adjusting plate, three sliding grooves are longitudinally formed in the front surface of the first adjusting plate, the clamping plates are distributed symmetrically, two connecting rods are arranged on the side wall of the clamping plate, the tail ends of the connecting rods extend into the sliding grooves, screw holes are formed in the end part of the screw rod located the middle of the clamping plate, a vertical adjusting screw is connected through screw hole threads, and the output end of a fourth motor and the output end of the fourth motor are connected with the vertical adjusting screw.
As a further preferable mode of the invention, the first screw rod and the surface of the transmission rod are provided with transmission wheels which are arranged in the driving plate, the first screw rod is fixedly connected with the transmission wheels, the surface of the transmission rod is provided with a connecting groove and is in sliding connection with the transmission wheels, and the two transmission wheels are in transmission connection by adopting a transmission chain.
As a further preferable mode of the invention, the two ends of the surface of the driving wheel arranged on the driving rod are respectively sleeved with a positioning ring, and the tail ends of the positioning rings are fixedly connected with the inner bottom of the driving plate.
As a further preferable mode of the invention, limiting rings are respectively arranged on the surface of the transmission rod and on two sides of the fixed plate.
As a further preferable mode of the invention, a second motor is arranged on the side wall of the clamping table and below the moving plate, the power output end of the second motor extends to the inner side of the clamping table and is connected with a second screw, a threaded sleeve is sleeved on the second screw, and the upper end of the threaded sleeve is connected with the moving plate.
As a further preferable mode of the invention, an adjusting rod is rotatably connected in the fixing box, a threaded adjusting disc is obliquely arranged on the surface of the adjusting rod, a motor III is arranged at the end part of the fixing box, the output end of the motor III is connected with the adjusting rod, and a plurality of adjusting teeth are arranged on the back of the adjusting plate II and are connected with the threaded adjusting disc.
As a further preferable mode of the invention, the two opposite sides of the clamping plates are provided with anti-skid blocks, and the anti-skid blocks are made of rubber materials.
As a further preferable mode of the invention, the bottoms of the clamping tables are respectively provided with anti-skid foot pads near corners.
(III) beneficial effects
The invention provides an integrated circuit test fixture with a position correction function. The beneficial effects are as follows:
According to the invention, after the clamping mechanism clamps the integrated circuit board, the motor drives the movable plate to horizontally displace, so that the horizontal position of the integrated circuit board on the clamping table can be adjusted left and right, the motor drives the adjusting rod to rotate and the adjusting plate II is pushed to move through the threaded adjusting plate on the adjusting rod, so that the horizontal position of the integrated circuit board is adjusted back and forth, the effect of correcting the circuit board is achieved, the circuit board is not required to be disassembled again, the operation steps are reduced, and the testing efficiency is improved.
Drawings
FIG. 1 is a block diagram of an integrated circuit test fixture with position correction according to the present invention;
FIG. 2 is an internal structural view of the driving plate according to the present invention;
FIG. 3 is a block diagram of a clamping mechanism according to the present invention;
FIG. 4 is an internal construction view of the fixing case according to the present invention;
Fig. 5 is an internal structural view of the clamping table according to the present invention.
In the figure: 1. a clamping table; 2. a driving plate; 3. a fixing plate; 4. a clamping mechanism; 5. a sleeve; 6. a first screw; 7. a first motor; 8. a transmission rod; 9. a connecting groove; 10. a second motor; 11. a moving plate; 12. a driving wheel; 13. a drive chain; 14. a positioning ring; 15. a fixed box; 16. a third motor; 17. a fourth motor; 18. an adjusting plate I; 19. a connecting rod; 20. a chute; 21. a clamping plate; 22. an anti-skid block; 23. an adjusting plate II; 24. adjusting teeth; 25. an adjusting rod; 26. a threaded adjusting disk; 27. a second screw; 28. a screw sleeve.
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.
Referring to fig. 1-5, the embodiment of the present invention provides a technical solution: the integrated circuit test fixture with the position correction function comprises a clamping table 1, wherein fixing plates 3 are vertically arranged at two ends of the top of the clamping table 1 respectively, a sleeve 5 is movably connected to the surface of the fixing plates 3, one end of the sleeve 5 extends to the inner side of the clamping table 1 and is connected with a clamping mechanism 4, the other end of the sleeve 5 is connected with a first screw rod 6, the side wall of the clamping table 1 is slidingly connected with a moving plate 11, two ends of the moving plate 11 extend to two sides of the clamping table 1 respectively and are vertically connected with a driving plate 2, a first motor 7 is fixedly arranged on the outer wall of the driving plate 2, the output end of the first motor 7 is connected with the first screw rod 6, the first screw rod 6 is in threaded connection with the sleeve 5, the sleeve 5 is driven to horizontally displace in the rotation process of the first screw rod 6, the positions of the clamping mechanism 4 are adjusted, the lower ends of the surfaces of the two fixing plates 3 are rotationally connected with a transmission rod 8, and the end of the transmission rod 8 penetrates the driving plate 2;
The clamping mechanism 4 comprises a fixed box 15, an adjusting plate I18 and clamping plates 21, the fixed box 15 is arranged at the end part of the sleeve 5, an adjusting plate II 23 is arranged at the back of the adjusting plate I18 and is in sliding connection with the fixed box 15 through the adjusting plate II 23, three sliding grooves 20 are longitudinally formed in the front surface of the adjusting plate I18, two clamping plates 21 are symmetrically distributed, connecting rods 19 are arranged on the side walls of the clamping plates 21, the tail ends of the connecting rods 19 extend into the sliding grooves 20, screw holes are formed in the end parts of the screw rods located in the middle, vertical adjusting screws are connected through screw holes in threaded mode, a motor IV 17 is arranged in the middle of the top surface of the adjusting plate I18, the output end of the motor IV 17 is connected with the vertical adjusting screws, an integrated circuit board is clamped between the two clamping plates 21, the vertical adjusting screws are driven to rotate through the motor IV 17, the clamping plates 21 are driven to move, the surface threads of the vertical adjusting screws are symmetrically distributed from the middle, and the two clamping plates 21 can be simultaneously moved and adjusted to the middle or two sides.
Further improved, the first screw rod 6 and the surface of the transmission rod 8 are internally provided with the transmission wheel 12 positioned in the driving plate 2, the first screw rod 6 is fixedly connected with the transmission wheel 12, the surface of the transmission rod 8 is provided with the connecting groove 9 and is in sliding connection with the transmission wheel 12, the two transmission wheels 12 are in transmission connection by adopting the transmission chain 13, the first screw rod 6 rotates and then drives the transmission rod 8 to rotate by the transmission wheel 12 and the transmission chain 13, and the first screw rod 6 at the other side is driven to synchronously rotate, so that the addition of power components such as a motor is reduced.
Further improved, the two ends of the surface of the driving wheel 12 arranged on the driving rod 8 are respectively sleeved with a positioning ring 14, the tail end of the positioning ring 14 is fixedly connected with the inner bottom of the driving plate 2, and the limiting ring is rotationally connected with the driving wheel 12, so that the driving wheel 12 can have a certain limiting effect, and can rotate and avoid displacement.
Further improved, limiting rings are respectively arranged on the surface of the transmission rod 8 and on the two sides of the fixed plate 3, so that the limiting effect is achieved, and the displacement of the transmission rod 8 is avoided.
Further improved, a second motor 10 is arranged on the side wall of the clamping table 1 and below the moving plate 11, the power output end of the second motor 10 extends to the inner side of the clamping table 1 and is connected with a second screw rod 27, a threaded sleeve 28 is sleeved on the second screw rod 27, the upper end of the threaded sleeve 28 is connected with the moving plate 11, the second motor 10 rotates to drive the second screw rod 27, the second screw rod 27 drives the threaded sleeve 28 to move, and accordingly the moving plate 11 is driven to horizontally move, and the horizontal left and right positions of the integrated circuit board are adjusted.
Further improved, an adjusting rod 25 is rotatably connected in the fixing box 15, a threaded adjusting disc 26 is obliquely arranged on the surface of the adjusting rod 25, a motor III 16 is arranged at the end part of the fixing box 15, the output end of the motor III 16 is connected with the adjusting rod 25, a plurality of adjusting teeth 24 are arranged on the back of the adjusting plate II 23 and are connected with the threaded adjusting disc 26, the adjusting rod 25 is driven to rotate after the motor III 16 is started, and the threaded adjusting disc 26 on the adjusting rod 25 drives the adjusting teeth 24 and drives the adjusting plate II 23 to horizontally displace after rotating, so that the horizontal front-rear position of the integrated circuit board is adjusted.
Further improved, the anti-skid blocks 22 are arranged on the opposite faces of the two clamping plates 21, the anti-skid blocks 22 are made of rubber materials, and the anti-skid blocks 22 can improve the friction force with the circuit board and avoid the problems of slipping and displacement in the testing process.
Further improved, the bottom of the clamping table 1 is provided with anti-skid foot pads near corners respectively, so that the effects of anti-skid and stable support are achieved.
Working principle: the integrated circuit board is placed in the middle of two clamping mechanisms 4, the first 7 of motor drives the first 6 of screw rod to rotate so as to drive two clamping mechanisms 4 to displace to the integrated circuit board simultaneously, the fourth 17 of motor drives two clamping plates 21 to move to the integrated circuit board simultaneously and clamp the integrated circuit board, the test can be started after the clamping is completed, the second 27 of motor 10 drives the second screw rod to rotate when the position of the integrated circuit board needs to be adjusted, the movable plate 11 is driven to horizontally displace, the left and right positions of the integrated circuit board are adjusted, the third 16 of motor drives the adjusting rod 25 to drive the second adjusting plate 23 to move, the front and back positions of the integrated circuit board are adjusted, the clamping plates 21 are unfolded after the test is completed, and then the integrated circuit board is taken down.
The invention relates to a clamping table 1; 2. a driving plate; 3. a fixing plate; 4. a clamping mechanism; 5. a sleeve; 6. a first screw; 7. a first motor; 8. a transmission rod; 9. a connecting groove; 10. a second motor; 11. a moving plate; 12. a driving wheel; 13. a drive chain; 14. a positioning ring; 15. a fixed box; 16. a third motor; 17. a fourth motor; 18. an adjusting plate I; 19. a connecting rod; 20. a chute; 21. a clamping plate; 22. an anti-skid block; 23. an adjusting plate II; 24. adjusting teeth; 25. an adjusting rod; 26. a threaded adjusting disk; 27. a second screw; 28. the screw sleeve and the parts are universal standard parts or parts known by the skilled person, the structure and the principle of the screw sleeve and the parts are known by the skilled person through technical manuals or known through routine experimental methods, the invention solves the problems that the existing integrated circuit test fixture is inconvenient to adjust the position of an integrated circuit board after clamping and fixing the integrated circuit board, the integrated circuit test fixture needs to be disassembled and adjusted again, the operation is complicated, the time consumption is long, the detection efficiency is influenced, the invention solves the problems that the mutual combination of the parts, according to the invention, after the integrated circuit board is clamped by the clamping mechanism 4, the movable plate 11 is driven by the motor to horizontally displace, so that the horizontal position of the integrated circuit board on the clamping table 1 can be adjusted left and right, the adjusting rod 25 is driven by the motor to rotate, and the second adjusting plate 23 is pushed to move by the threaded adjusting plate 26 on the adjusting rod 25, so that the horizontal position of the integrated circuit board is adjusted back and forth, the effect of correcting the circuit board is achieved, the circuit board is not required to be disassembled again, the operation steps are reduced, and the testing efficiency is improved.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410433619.5A CN118483457A (en) | 2024-04-11 | 2024-04-11 | Integrated circuit test fixture with position correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410433619.5A CN118483457A (en) | 2024-04-11 | 2024-04-11 | Integrated circuit test fixture with position correction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118483457A true CN118483457A (en) | 2024-08-13 |
Family
ID=92186827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410433619.5A Pending CN118483457A (en) | 2024-04-11 | 2024-04-11 | Integrated circuit test fixture with position correction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118483457A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991019392A1 (en) * | 1990-05-25 | 1991-12-12 | Everett/Charles Contact Products, Inc. | Test fixture alignment system |
| EP1754976A1 (en) * | 2005-08-18 | 2007-02-21 | Research In Motion Limited | Test Fixture With Clamping Top Plate Using Magnetic Force |
| JP2009164275A (en) * | 2007-12-28 | 2009-07-23 | Asahi Rubber:Kk | Silicone resin base material |
| JP2010021351A (en) * | 2008-07-10 | 2010-01-28 | Semiconductor Energy Lab Co Ltd | Semiconductor apparatus |
| CN215787328U (en) * | 2021-09-07 | 2022-02-11 | 周静 | Integrated circuit board welding device |
| CN218170280U (en) * | 2022-05-16 | 2022-12-30 | 泰州亿奇照明科技有限公司 | Fixed tool for integrated circuit chip processing |
| CN218727815U (en) * | 2022-11-03 | 2023-03-24 | 湖南世迪科技有限公司 | Integrated circuit testing and sorting device |
| CN219434886U (en) * | 2023-02-06 | 2023-07-28 | 北臻(浙江)电子科技有限公司 | Clamp for improving clamping stability in circuit board test |
| CN219832622U (en) * | 2023-03-02 | 2023-10-13 | 佛山市顺德区锜科电子科技有限公司 | Mounting fixture is used in production based on integrated circuit board |
| CN220188659U (en) * | 2023-06-12 | 2023-12-15 | 鄂尔多斯市龙场科技有限公司 | Test fixture based on integrated circuit board |
| CN220271383U (en) * | 2023-06-26 | 2023-12-29 | 山东微山湖电子科技有限公司 | Calibrating adapter plate positioning device for integrated circuit test |
| CN220305441U (en) * | 2022-12-19 | 2024-01-05 | 深圳市汉沣微电子有限公司 | Integrated circuit test fixture |
| CN220427124U (en) * | 2023-07-25 | 2024-02-02 | 陕西永华物资装备有限公司 | Spot welding mechanism for integrated circuit chip processing |
| CN117572199A (en) * | 2023-10-08 | 2024-02-20 | 徐州领测半导体科技有限公司 | Test fixture for integrated circuit chip |
-
2024
- 2024-04-11 CN CN202410433619.5A patent/CN118483457A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991019392A1 (en) * | 1990-05-25 | 1991-12-12 | Everett/Charles Contact Products, Inc. | Test fixture alignment system |
| EP1754976A1 (en) * | 2005-08-18 | 2007-02-21 | Research In Motion Limited | Test Fixture With Clamping Top Plate Using Magnetic Force |
| JP2009164275A (en) * | 2007-12-28 | 2009-07-23 | Asahi Rubber:Kk | Silicone resin base material |
| JP2010021351A (en) * | 2008-07-10 | 2010-01-28 | Semiconductor Energy Lab Co Ltd | Semiconductor apparatus |
| CN215787328U (en) * | 2021-09-07 | 2022-02-11 | 周静 | Integrated circuit board welding device |
| CN218170280U (en) * | 2022-05-16 | 2022-12-30 | 泰州亿奇照明科技有限公司 | Fixed tool for integrated circuit chip processing |
| CN218727815U (en) * | 2022-11-03 | 2023-03-24 | 湖南世迪科技有限公司 | Integrated circuit testing and sorting device |
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| CN219434886U (en) * | 2023-02-06 | 2023-07-28 | 北臻(浙江)电子科技有限公司 | Clamp for improving clamping stability in circuit board test |
| CN219832622U (en) * | 2023-03-02 | 2023-10-13 | 佛山市顺德区锜科电子科技有限公司 | Mounting fixture is used in production based on integrated circuit board |
| CN220188659U (en) * | 2023-06-12 | 2023-12-15 | 鄂尔多斯市龙场科技有限公司 | Test fixture based on integrated circuit board |
| CN220271383U (en) * | 2023-06-26 | 2023-12-29 | 山东微山湖电子科技有限公司 | Calibrating adapter plate positioning device for integrated circuit test |
| CN220427124U (en) * | 2023-07-25 | 2024-02-02 | 陕西永华物资装备有限公司 | Spot welding mechanism for integrated circuit chip processing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20240813 |
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| RJ01 | Rejection of invention patent application after publication |