CN204374242U - Chip test fixture - Google Patents
Chip test fixture Download PDFInfo
- Publication number
- CN204374242U CN204374242U CN201520027782.8U CN201520027782U CN204374242U CN 204374242 U CN204374242 U CN 204374242U CN 201520027782 U CN201520027782 U CN 201520027782U CN 204374242 U CN204374242 U CN 204374242U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- chip
- slide block
- switching circuit
- housing
- 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.)
- Expired - Fee Related
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- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
A kind of chip test fixture, comprising: housing, spring, rotatable wire, switching circuit board slide block and cover plate; By rotating rotatable wire by the sliding shoe extrusion spring of switching circuit board slide block, realize slip and the self-return of switching circuit board slide block.Tested chip is arranged in the metal mounting hole of switching circuit board slide block, and the slip along with switching circuit board slide block makes the straight cutting pin parallel contact on chip pin and testing circuit board, realizes the connection of chip and test circuit.Apply chip test fixture of the present utility model, efficient solution never easily can be installed on dismounting, easy damaged pin, cause pin to be out of shape the problem even damaged, improve testing efficiency simultaneously.
Description
Technical field
The utility model relates to the technical field of chip testing, is a kind of chip test fixture being convenient to chip installation and removal specifically.
Background technology
Chip test fixture is a kind of novel clamp coming from component testing Demand Design, for being connected with test circuit by chip.Chip testing process directly affects the function of chip and follow-up use.Chip testing is the important step before chip formally uses, and requires test process to connect reliable, to the pin not damaged of chip, is easy to install and dismounting.But conventional test methodologies adopts method chip being installed on socket on test circuit, is not easily installed on dismounting, easy damaged pin, cause pin to be out of shape and even damage.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of chip test fixture being convenient to chip installation and removal.
The technical scheme that the utility model is taked for the technical matters existed in solution known technology is:
Chip test fixture of the present utility model, comprising: housing, spring, rotatable wire, switching circuit board slide block and cover plate; Wherein housing comprises sliding platform, switching circuit board slide block, support platform, rotatable wire mounting hole, cover plate fixed orifice and housing fixed orifice, and rotatable wire is fixed by rotatable wire mounting hole and housing activity, and cover plate is fixed by cover plate fixed orifice and housing; Switching circuit board slide block comprises tested chip metal mounting hole and is arranged on the sliding shoe of both sides, switching circuit board slide block is arranged in the support platform of housing, two sliding shoe and spring are placed on the sliding platform of housing, and spring is arranged between sliding shoe and sliding platform; Rotatable wire props up circuit board sliding shoe.
The technical program can also adopt following technical measures:
On described housing, the width of support platform and switching circuit board match.
Described housing is arranged housing fixed orifice.
Arrange wafer support beam in the middle of described cover plate, cover plate covers circuit board slide block and spring.
Arrange bent tabs in the middle of described rotatable wire, two ends arrange crotch.
The quantity of the chip mounting hole on described switching circuit board slide block and pitch of holes are all identical with the pin number of tested chip, pin-pitch.
The advantage that the utility model has and good effect are:
In chip test fixture of the present utility model, by rotating rotatable wire by the sliding shoe extrusion spring of switching circuit board slide block, realize slip and the self-return of switching circuit board slide block.Tested chip is arranged in the metal mounting hole of switching circuit board slide block, and the slip along with switching circuit board slide block makes the straight cutting pin parallel contact on chip pin and testing circuit board, realizes the connection of chip and test circuit.Compared with prior art, the utility model test fixture has the following advantages: in the design of this test fixture, the pin of tested chip, by realizing being connected with the straight cutting pin parallel contact of test circuit, can not damage pin; This test fixture realizes the slip of switching circuit board slide block by extrusion spring, and chip installation and removal are convenient, and can not cause the distortion of pin, testing efficiency is high; This test fixture can realize the test of miniaturization intensive pin straight cutting chip, and the pin-pitch of tested chip is minimum can reach 1.27mm.
Accompanying drawing explanation
Fig. 1 is the syndeton schematic diagram of chip test fixture of the present utility model;
Fig. 2 is the structural representation of housing in chip test fixture of the present utility model;
Fig. 3 is the structural representation of switching circuit board slide block in chip test fixture of the present utility model;
Fig. 4 is the structural representation of chip test fixture cover plate of the present utility model;
Fig. 5 is the structural representation of rotatable wire in chip test fixture of the present utility model;
Fig. 6 is the schematic diagram of tested chip in chip test fixture of the present utility model;
Fig. 7 is the partial structurtes schematic diagram of testing circuit board in chip test fixture of the present utility model;
Fig. 8 is chip test fixture of the present utility model original state structural representation after chip is installed;
Fig. 9 be in chip test fixture of the present utility model on switching circuit board slide block tested chip mounting hole at the enlarged diagram of original state;
Figure 10 is chip test fixture of the present utility model clamped condition structural representation after chip is installed;
Figure 11 to transfer on printed board slide block tested chip mounting hole at the enlarged diagram of clamped condition in the utility model chip test fixture.
Embodiment
Below in conjunction with embodiment and accompanying drawing, technical scheme is specifically described.
As shown in Fig. 1 to 11, the chip test fixture of the utility model design, comprise housing 2, spring 16, rotatable wire 3, switching circuit board slide block 5 and cover plate 4, housing 2 comprises sliding platform 10, switching circuit board slider support platform 11, rotatable wire mounting hole 9, cover plate fixed orifice 7 and housing fixed orifice 8; Switching circuit board slide block 5 comprises tested chip mounting hole 13 and two sliding shoes 12.Switching circuit board slide block 5 is arranged in the support platform 11 of housing 2, two sliding shoe 12 and spring 16 are placed on the sliding platform 10 of housing 2, allowing sliding shoe 12 extrusion spring 16 of switching circuit board slide block 5 by rotating rotatable wire 3, realizing slip and the self-return of switching circuit board slide block 5.Tested chip 6 is arranged in the mounting hole 13 of switching circuit board slide block 5, and the slip along with switching circuit board slide block 5 makes chip pin 18 and straight cutting pin 17 parallel contact on testing circuit board 1, realizes the connection of chip 6 and testing circuit board 1.
In order to realize the slip of switching circuit board slide block 5, housing 2 is designed with the support platform 11 of switching circuit board slide block 5, the width of support platform and the width of switching circuit board slide block match, and ensure that switching circuit board slide block 5 can only horizontal slip in housing 2.Housing 2 is designed with cover plate fixed orifice 7, is used for fixing cover plate 4.Housing 2 is also designed with housing fixed orifice 8, is used for housing 2 to be fixed on fixed orifice 20 place of testing circuit board 1, ensure housing 2 inertia in test process.
Cover plate 4 adopts isolation material, and medium design has wafer support beam 15, ensures that tested chip 6 does not contact with between switching circuit board slide block 5 and housing 2.Cover plate 4 is fixed on cover plate fixed orifice 7 place of housing 2 by fixed orifice 14 simultaneously, ensures that switching circuit board slide block 5 and spring 16 can only move horizontally on sliding platform 10.
Rotatable wire 3 has bent tabs, and the height of bent tabs is a, and steel wire 3 forms range difference a after rotation 180 °, because this range difference a realizes the displacement of switching circuit board slide block 5.In addition, there is crotch at rotatable wire 3 two ends, after steel wire 3 is arranged on rotatable wire mounting hole 9 place of housing 2, ensure that stable being arranged on housing 2 of steel wire 3 does not come off.。
The test that test fixture of the present utility model is applicable to double straight cutting chip is installed.The quantity of the chip mounting hole 13 on described switching circuit board slide block 5 and the pitch of holes of mounting hole 13 are all identical with the pin number of tested chip 6, pin-pitch b, and the perforate length of mounting hole 13 is identical with the height a of the bent tabs of rotatable wire 3.In other words, the utility model test fixture is applicable to the test installation of a series of straight cutting chip.
Principle of work and the process of the utility model test fixture are:
(see Fig. 8 in the chip the mounting hole first chip pin 18 of tested chip 6 being positioned over switching circuit board slide block 5, the chip pin 18 of tested chip 6 is illustrate only in figure, non-display chip body 19), the straight cutting pin 17 after installing on the chip mounting hole 13 of switching circuit board slide block 5, testing circuit board 1, the relative position of chip pin 18 three are see Fig. 9.Rotatable wire 3 is rotated 180 °, because rotatable wire 3 has difference in height a, this difference in height promotes switching circuit board slide block 5 extrusion spring 16, sliding platform 10 along housing 2 slides, drive tested chip 6 to move to the straight cutting pin 17 of testing circuit board 1, final chip pin 18 and straight cutting pin 17 close contact, realize connection being installed (see Figure 10, the chip pin 18 of tested chip 6 is illustrate only, non-display chip body 19) in figure.Straight cutting pin 17 after connecting on the chip mounting hole 13 of switching circuit board slide block 5, testing circuit board 1, the relative position of chip pin 18 three are see Figure 11.In installation process, the perforate length of the chip mounting hole 13 of described switching circuit board slide block 5 is identical with the kink height a of rotatable wire 3, ensure straight cutting pin 17 and chip pin 18 just close contact, described connected mode is straight cutting pin 17 and chip pin 18 parallel contact simultaneously, surface of contact is large, there will not be situation about not reaching, can also ensure that chip pin 18 does not injure by shearing force, chip pin 18 can not be out of shape.In addition, described cover plate 4 is fixed together with housing 2, ensures that switching circuit board slide block 4 and spring 16 can only horizontal slips on sliding platform 10.After having tested, rotatable wire 3 is gone back to original position, by the screen resilience of spring 16, switching circuit board slide block 5 can get back to the initial position of installation, discharges tested chip 6.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model with preferred embodiment openly as above, but, and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (6)
1. a chip test fixture, is characterized in that, comprising: housing, spring, rotatable wire, switching circuit board slide block and cover plate; Wherein housing comprises sliding platform, switching circuit board slide block, support platform, rotatable wire mounting hole, cover plate fixed orifice and housing fixed orifice, and rotatable wire is fixed by rotatable wire mounting hole and housing activity, and cover plate is fixed by cover plate fixed orifice and housing; Switching circuit board slide block comprises tested chip metal mounting hole and is arranged on the sliding shoe of both sides, switching circuit board slide block is arranged in the support platform of housing, two sliding shoe and spring are placed on the sliding platform of housing, and spring is arranged between sliding shoe and sliding platform; Rotatable wire props up circuit board sliding shoe.
2. based on chip test fixture according to claim 1, it is characterized in that: on housing, the width of support platform and switching circuit board match.
3. based on the chip test fixture described in claim 1 or 2, it is characterized in that: housing is arranged housing fixed orifice.
4. based on chip test fixture according to claim 3, it is characterized in that: arrange wafer support beam in the middle of cover plate, cover plate covers circuit board slide block and spring.
5. based on chip test fixture according to claim 4, it is characterized in that: arrange bent tabs in the middle of rotatable wire, two ends arrange crotch.
6. based on chip test fixture according to claim 5, it is characterized in that: the quantity of the chip mounting hole on switching circuit board slide block and pitch of holes are all identical with the pin number of tested chip, pin-pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027782.8U CN204374242U (en) | 2015-01-15 | 2015-01-15 | Chip test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027782.8U CN204374242U (en) | 2015-01-15 | 2015-01-15 | Chip test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374242U true CN204374242U (en) | 2015-06-03 |
Family
ID=53330451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520027782.8U Expired - Fee Related CN204374242U (en) | 2015-01-15 | 2015-01-15 | Chip test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484579A (en) * | 2016-10-18 | 2017-03-08 | 广州视源电子科技股份有限公司 | A kind of method of testing for adapter and device |
| CN113257335A (en) * | 2021-07-15 | 2021-08-13 | 深圳泰思特半导体有限公司 | High-precision memory test equipment |
-
2015
- 2015-01-15 CN CN201520027782.8U patent/CN204374242U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484579A (en) * | 2016-10-18 | 2017-03-08 | 广州视源电子科技股份有限公司 | A kind of method of testing for adapter and device |
| CN113257335A (en) * | 2021-07-15 | 2021-08-13 | 深圳泰思特半导体有限公司 | High-precision memory test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20180115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |