CN209417081U - A kind of chip test fixture - Google Patents
A kind of chip test fixture Download PDFInfo
- Publication number
- CN209417081U CN209417081U CN201821409828.2U CN201821409828U CN209417081U CN 209417081 U CN209417081 U CN 209417081U CN 201821409828 U CN201821409828 U CN 201821409828U CN 209417081 U CN209417081 U CN 209417081U
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- China
- Prior art keywords
- chip
- fixture
- load
- bearing part
- test fixture
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- 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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- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model discloses a kind of chip test fixtures, the chip test fixture include chip placement load-bearing part and fixture base compatible with the load-bearing part: the fixture base is provided with locating slot, and the locating slot is used to position the load-bearing part in the pedestal and the chip gripper that is placed on the load-bearing part is set between the load-bearing part and the fixture base.The utility model structure is simple, carries chip by using load-bearing part, and fixes by fixture base and fixture cover board, can guarantee that chip will not lead to the problem of the offset of pin and cause to align and be not allowed during the test, improve the efficiency and accuracy rate of test.
Description
Technical field
The utility model relates to a kind of test fixture more particularly to a kind of chip test fixtures.
Background technique
Currently, fingerprint recognition chip using more more and more universal, wherein capacitance type fingerprint identification chip is especially common, in core
It needs to be placed in jig base when piece completes and be tested.
The capacitance type fingerprint identification chip back side is chip information face, and the back side does not have pin home position.Existing jig
Pedestal, which is equipped with, to be accommodated and the matched holding part of capacitance type fingerprint chip.When test, chip is usually directly placed at jig base
On.However, capacitance type fingerprint chip is typically round, it is easy rotation, chip rotation is easy in test process to be led to pin and survey
Probe on probation occurs to align inaccurate situation, seriously affects testing efficiency and accuracy.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is that circular chip is first navigated in jig
Contraposition is fixed, and the alignment issues of chip are solved.
One of the purpose of this utility model adopts the following technical scheme that realization:
A kind of chip test fixture, the test fixture include for chip placement load-bearing part and with the load-bearing part
Compatible fixture base: the fixture base is provided with locating slot, and the locating slot is for positioning the load-bearing part in described
Fixture base is set to the chip gripper being placed on the load-bearing part between the load-bearing part and the fixture base.
Further, the side of the load-bearing part is equipped with the bearing groove to match with the chip form, is used for test wrapper
Section accommodates the chip.
Further, the side wall that the load-bearing part is equipped with bottom, extends from the edge of the bottom, the bottom and institute
State side wall and surround the bearing groove jointly, the bottom is equipped with first through hole, the chip part by the first through hole outside
Dew.
Further, supporting part is also formed on the bottom, and the supporting part supports the chip.
Further, the supporting part is equipped with adsorption hole.
Further, the side that the bearing groove is arranged in the load-bearing part is equipped with contraposition mark, pre- so as to the chip
If position and contraposition mark align.
Further, the side that the bearing groove is arranged in the load-bearing part is equipped with to bit line, for drawing with the chip
Foot contraposition.
Further, the locating slot is equipped with the probe of the test to match with the pin of the chip.
It further, further include fixture cover board, the fixture cover board is covered on the fixture base, and the load-bearing part is located at
Between the fixture cover board and the fixture base.
Further, the fixture cover board is equipped with the second through-hole relative to the position of the chip, sequentially for pressing piece
The chip is pressed across second through-hole and the first through hole.
Compared with prior art, the utility model has the beneficial effects that: carrying chip by using load-bearing part, and pass through folder
Tool pedestal is fixed, and the offset that guarantee chip will not lead to the problem of pin during the test causes contraposition to be not allowed, and improves survey
The efficiency and accuracy rate of examination.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the load-bearing part schematic diagram of the present embodiment；
Fig. 3 is that the present embodiment load-bearing part is packed into chip schematic diagram；
Fig. 4 is the fixture base schematic diagram of the present embodiment；
In figure: 1, fixture cover board；2, load-bearing part；3, fixture base；4, chip；5, pressing piece；11, the second through-hole；21, it holds
Carry slot；22, to bit line；23, first through hole；24, adsorption hole；25, contraposition mark；26, supporting part；27, bottom；28, side wall；
31, locating slot；32, probe；41, pin；42, predeterminated position.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Embodiment as shown in Figs 1-4, the utility model are a kind of chip test fixture, the load-bearing part including chip placement 4
2, fixture base 3 compatible with load-bearing part 2.3 side of fixture base is provided with locating slot 31.Locating slot 31 is described for positioning
Load-bearing part 2 in the fixture base 3, and the chip 4 being placed on load-bearing part 2 be located on load-bearing part 2 and fixture base 3 it
Between.
Load-bearing part 2 chip placement 4 and can be positioned by fixture base 3, avoided chip 4 and aligned accidental movement in test
Caused by align inaccurate problem.
As preferred embodiment, 2 side of load-bearing part is recessed inwardly to form bottom 27, extends from the edge of bottom 27
Side wall 27 and the bearing groove 21 that surrounds jointly of bottom 27 and side wall 28.Bearing groove 21 matches with 4 shape of chip, is used for
Accommodate chip 4.Bottom 27 is equipped with first through hole 23 and forms supporting part 26.When chip 4 is placed in bearing groove 21, supporting part 26
Sustainable chip, bearing groove 21 can fixed chip 4.In addition, 4 part of chip is exposed by first through hole 23, for testing chip 4
Capacitance contact board.
As preferred embodiment, supporting part 26 is equipped with adsorption hole 24；Chip 4 can be stablized by vacuum pump
It is adsorbed on load-bearing part 2.
As preferred embodiment, the side that bearing groove 21 is arranged in load-bearing part 2 is equipped with contraposition mark 25, so as to chip 4
Predeterminated position 42 and contraposition mark 25 contraposition；Ensure Pin locations alignment detection position.
As preferred embodiment, the side that bearing groove 21 is arranged in load-bearing part 2 is equipped with to bit line 22, is used for and the core
The pin of piece aligns, and can be horizontal line, vertical line or 45 ° of lines to bit line 22, putting chip 4 can satisfy test equipment
Requirement.
As preferred embodiment, locating slot 31 is equipped with the detecting probe 32 to match with the pin of chip 4；It visits
Needle 32 can lead to control instrument complete test action.
As preferred embodiment, fixture cover board 1 that fixture base 3 is also configured with.Fixture cover board 1 is relative to chip 4
Position at be equipped with the second through-hole 11, allow the pressing piece 5 of test to pass through the exposed portion of 11 contact chip 4 of the second through-hole.
In test, firstly, chip 4 is packed into load-bearing part 2, and make the alignment of pin 41 to bit line 22, chip pin is pre-
After if the alignment contraposition of position 42 25 contrapositions of mark are accurate；Then, fixture base 3 is covered into load-bearing part 2, and is integrally overturn；
Then, by fixture cover board 1 and fixture base 3 is corresponding covers, the connection between fixture cover board 1 and fixture base 3 can pass through
Magnet is adsorbed or is connected by a snap；Finally, sequentially passing through the second through-hole 11 and the pressing chip of first through hole 23 by pressing piece 5
4。
Due to above-described embodiment test fixture by load chip 4 load-bearing part 2 be positioned in fixture base 3, test without
Worrying in test process that chip 4 shifts leads to contraposition inaccuracy, improves testing efficiency and test result and accuracy.Separately
Outside, above-described embodiment test fixture also passes through fixture cover board 1 and fixture base 3 further fixes load-bearing part 2.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (10)
1. a kind of chip test fixture, it is characterised in that: the test fixture include for chip placement load-bearing part and with
The compatible fixture base of the load-bearing part: the fixture base is provided with locating slot, and the locating slot is for positioning described hold
Holder in the fixture base, make the chip gripper being placed on the load-bearing part be set to the load-bearing part and the fixture base it
Between.
2. chip test fixture as described in claim 1, it is characterised in that: the side of the load-bearing part is equipped with and the chip
The bearing groove that shape matches accommodates the chip for testing process.
3. chip test fixture as claimed in claim 2, it is characterised in that: the load-bearing part is equipped with bottom, from the bottom
The side wall that extends of edge, the bottom and the side wall surround the bearing groove jointly, and the bottom is equipped with first through hole,
The chip part is exposed by the first through hole.
4. chip test fixture as claimed in claim 3, it is characterised in that: supporting part, the carrying are also formed on the bottom
Portion supports the chip.
5. chip test fixture as claimed in claim 4, it is characterised in that: the supporting part is equipped with adsorption hole.
6. chip test fixture as claimed in claim 2, it is characterised in that: the side of the bearing groove is arranged in the load-bearing part
It is identified equipped with contraposition, so that the predeterminated position of the chip and contraposition mark align.
7. chip test fixture as claimed in claim 2, it is characterised in that: the side of the bearing groove is arranged in the load-bearing part
Equipped with to bit line, for the contraposition of the pin of the chip.
8. chip test fixture as described in claim 1, it is characterised in that: the locating slot is equipped with the pin with the chip
The probe of the test to match.
9. chip test fixture as claimed in claim 3, it is characterised in that: it further include fixture cover board, the fixture cover plate lid
Set on the fixture base, the load-bearing part is between the fixture cover board and the fixture base.
10. chip test fixture as claimed in claim 9, it is characterised in that: the fixture cover board is relative to the chip
Position is equipped with the second through-hole, so that pressing piece sequentially passes through second through-hole and the first through hole pressing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409828.2U CN209417081U (en) | 2018-08-29 | 2018-08-29 | A kind of chip test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409828.2U CN209417081U (en) | 2018-08-29 | 2018-08-29 | A kind of chip test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209417081U true CN209417081U (en) | 2019-09-20 |
Family
ID=67929487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821409828.2U Active CN209417081U (en) | 2018-08-29 | 2018-08-29 | A kind of chip test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209417081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122923A (en) * | 2020-01-21 | 2020-05-08 | 中北大学 | SMT fixture for testing multiple chips |
-
2018
- 2018-08-29 CN CN201821409828.2U patent/CN209417081U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122923A (en) * | 2020-01-21 | 2020-05-08 | 中北大学 | SMT fixture for testing multiple chips |
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