CN218866037U

CN218866037U - Test fixture and test module

Info

Publication number: CN218866037U
Application number: CN202222731079.8U
Authority: CN
Inventors: 周璞
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-14
Anticipated expiration: 2032-10-17

Abstract

The utility model provides a test fixture and a test module, wherein the test fixture comprises a test substrate; a plurality of crimping devices which are arranged on the test substrate and used for bearing and fixing a product to be tested; and a display device electrically connected and fixed with the test substrate; the crimping device is configured to be electrically communicated with an electric connection end of a product to be tested; the test substrate is configured to be electrically communicated with the crimping device, so that the electrical connection end of the product to be tested is electrically communicated with the display device through the crimping device; the display device is configured to display the test state of the product to be tested. This test fixture need not unnecessary pencil and connects and switch on, and occupation space is little to maintain conveniently, and can let the test personnel clear know the test state of every product that awaits measuring, improves efficiency of software testing greatly.

Description

Test fixture and test module

Technical Field

The utility model relates to a test technical field. More particularly, the present invention relates to a test fixture and a test module.

Background

A semiconductor chip is a semiconductor device which is manufactured by etching and wiring a semiconductor wafer and can realize a certain function. With the development of semiconductor technology, the complexity of chips is also higher and higher, and in order to ensure the quality of chips leaving factories, functional tests need to be performed on the chips before leaving factories to ensure the integrity of the functions of the chips, control over the quality of the chips is realized, and the development of the semiconductor industry is promoted.

Although the existing test fixture has a plurality of crimping modules, the crimping modules are often connected with each other through the FFC, so that the connecting wire harness is very much, the wire harness is messy, the occupied space is large, and the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a test fixture and test module, this test fixture need not unnecessary pencil and connects and switch on, and occupation space is little to maintain conveniently, and can let the test condition of the clear every product that awaits measuring of tester, improves efficiency of software testing greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a test fixture, include:

testing the substrate;

a plurality of compression joint devices which are arranged on the test substrate and used for bearing and fixing a product to be tested; and

the display device is fixedly connected with the test substrate and is electrically conducted;

the crimping device is configured to be electrically communicated with the electric connection end of the product to be tested;

the test substrate is configured to be electrically communicated with the crimping device, so that the electrical connection end of the product to be tested is electrically communicated with the display device through the crimping device; the display device is configured to display the test state of the product to be tested.

In addition, preferably, the crimping device comprises a base fixed on the test substrate and a pressing plate which can be turned over up and down relative to the base;

the base comprises a bearing structure for bearing and fixing a product to be tested and an electric connector for electrically conducting the product to be tested positioned on the bearing structure and the test substrate;

the tail end of the electric connecting piece is exposed out of the bottom surface of the base.

In addition, preferably, the pressing plate is fixed on the base in a way that the pressing plate can be turned over up and down through a rotating shaft; the rotating shaft is sleeved with a torsion spring which is used for providing turning acting force for the pressing plate.

In addition, preferably, the test fixture further comprises a hook part; the hook member includes at least: a card body formed on the base; and the clamping hook is positioned on the pressing plate and correspondingly matched with the clamping body.

In addition, the preferable scheme is that the pressing plate comprises a plate body, a pressing cover arranged on the plate body in a floating mode through an elastic piece, and a pressing block formed on the pressing cover and used for conducting the electric connection end of the product to be tested and the head end of the electric connection piece in a compression joint mode.

Furthermore, it is preferable that the base includes a floating plate forming the bearing structure thereon; the floating plate comprises a cavity for accommodating and positioning a product to be detected; a part hole is formed in the bottom wall of the cavity;

the floating plate is arranged on the base through the floating piece; the head end of the electric connecting piece is arranged in the piece hole in a penetrating way; the floating plate is configured to be press-floatable with respect to the base in a connection direction of the electrical connection member.

Preferably, the floating plate has two cavities formed therein and arranged side by side.

In addition, preferably, grooves corresponding to the crimping devices one to one are formed on the test substrate; and a PAD point is formed on the bottom wall of the groove, the crimping device is fixed in the groove, and the tail end of the electric connector is connected and communicated with the PAD point.

In addition, preferably, the display device and the test substrate are connected and fixed through a connector and are electrically conducted.

The utility model also provides a test module, which comprises a jig frame and a plurality of test jigs;

the jig frame is used for bearing the test jig.

The beneficial effects of the utility model are that:

the utility model has the advantages that the plurality of crimping devices are directly assembled on the test substrate, and under the premise of ensuring the test quantity of products, the crimping devices are not required to be connected through a large amount of wire harnesses, so that the whole structure occupies small space and is more convenient to maintain; and the display device fixedly connected with the test substrate can enable a tester to more visually see the test state of each product to be tested, so that the test efficiency is greatly improved.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the testing fixture of the present invention.

Fig. 2 is one of the overall structural schematic diagrams of the crimping apparatus of the present invention.

Fig. 3 is a second schematic view of the overall structure of the crimping apparatus of the present invention.

Fig. 4 is an assembly view of the crimping apparatus of the present invention.

Fig. 5 is a schematic view of the overall structure of the test module of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The test fixture aims to solve the problems that connecting wire harnesses among a plurality of crimping modules of the existing test fixture are very many, the wire harnesses are messy, the occupied space is large, and the maintenance is inconvenient. The utility model provides a test fixture and test module, it is shown to combine fig. 1 to fig. 4, specifically test fixture 10 includes: a test substrate 11; the multiple crimping devices 12 are arranged on the test substrate 11 and used for bearing and fixing products to be tested, and the multiple crimping devices 12 can simultaneously realize crimping conduction on the multiple products to be tested to ensure test efficiency; and a display device 13 electrically connected and fixed to the test substrate 11; the crimping device 12 is configured to be electrically connected with an electrical connection end of a product to be tested; the test substrate 11 is configured to be electrically communicated with the crimping device 12, so that the electrical connection end of the product to be tested is electrically communicated with the display device 13 through the crimping device 12; display device 13 is configured to can show the test state of the product that awaits measuring, it should be said that, display device 13 can be the LED base plate, including the pilot lamp that corresponds the different test state of each product on the LED base plate, the pilot lamp can show the 6 test state of all products, only need a power cord to connect moreover, the pencil is few, it is convenient to maintain, testable quantity is many, the test state shows clearly, when the test of wherein a certain product exists when unusual can be accurate know that which mode of which passageway has appeared the mistake. Furthermore, the LED substrate and the test substrate 11 are connected and fixed through a connector and realize electric conduction, the connector is fixed on the test substrate 11, and the electric connection end of the LED substrate is inserted and fixed on the connector so as to realize the electric conduction of the LED substrate and the test substrate 11.

In a specific embodiment, the pressing apparatus 12 includes a base 121 fixed on the test substrate 11 and a pressing plate 122 capable of being turned over vertically relative to the base 121, specifically, the pressing plate 122 includes a plate 1221, a pressing cover 1222 floatingly disposed on the plate 1221 through an elastic member 1224, and a pressing block 1223 formed on the pressing cover 1222 and used for pressing and conducting an electrical connection end of a product to be tested and a head end of the electrical connection member 123, the plate 1221 is provided with an installation groove, the pressing cover 1222 is disposed in the installation groove through a spring, the pressing cover 1222 is disposed in an inclined manner, and a plane where the pressing cover 1222 is located and a plane where the plate 1221 is located are not parallel to each other when no external force is applied; specifically, the thickness of the mounting groove protruding from the upper end of the gland 1222 is greater than the thickness of the mounting groove protruding from the lower end of the gland 1222 in a natural state, so that in the process of pressing the pressing plate 122, the situation that the product cover is pressed and warped due to parallel covering can be avoided, the situation that the position of a product deviates and the test is unstable is avoided, the product to be tested is stably covered by the inclined gland 1222, and the conduction and the test effect of the product to be tested are ensured to be good; the base 121 includes a supporting structure for supporting and fixing a product to be tested and an electrical connector 123 for electrically connecting the product to be tested on the supporting structure and the test substrate 11; the tail end of the electrical connector 123 is exposed from the bottom surface of the base 121, and the head end is exposed from the top surface of the carrying structure. Through the above arrangement, when the pressing plate 122 is turned downwards and covers the product to be tested, the pressing block 1223 is pressed on the product to be tested, so that the electrical connection end of the product to be tested is tightly matched with the electrical connection member 123. The testing device has the advantages that the pressing plate 122 is pressed down to enable the electric connection piece 123 to be reliably connected with the electric connection end of the product to be tested, and stable transmission of the testing signal is guaranteed.

Further, the pressing plate 122 is fixed on the base 121 through a rotating shaft in a manner of being capable of being turned over up and down; the rotating shaft is sleeved with a torsion spring 124 for providing a turning action force for the pressing plate 122, and the pressing plate 122 can be upwards bounced by a certain angle under the action of the two torsion arms of the torsion spring 124 after the two torsion arms of the torsion spring 124 are separated from the limitation of the pressing plate 122, so that the pressing plate 122 can be conveniently opened by upwards lifting.

In order to enable the electrical connection member 123 and the electrical connection end of the product to be tested to always keep a conduction state when the product to be tested is tested, the test fixture 10 further includes a hook member; the hook member includes at least: a card body 125 formed on the base 121; and a hook 126 on the pressing plate 122 and corresponding to the clip body 125.

In one embodiment, the base 121 includes a floating plate 1211 thereon forming the load bearing structure; the floating plate 1211 includes a cavity 1212 for receiving and positioning a product to be tested; a piece hole is formed in the bottom wall of the cavity 1212; the floating plate 1211 is disposed on the base 121 through the floating member 1213; the head end of the electric connecting piece 123 penetrates through the piece hole and is exposed out of the bottom wall of the cavity 1212; the floating plate 1211 is configured to be press-floatable with respect to the base 121 in the connection direction of the electrical connector 123. Specifically, the floating element 1213 is a floating spring, a receiving groove is formed on the base 121, the floating plate 1211 is fastened and pressed on the receiving groove by a fixing screw 1215, the floating plate 1211 is floated by the floating spring, the floating spring is located between the bottom wall of the floating plate 1211 and the bottom wall of the receiving groove, a hole is formed on the floating plate 1211, the hole corresponds to the electrical connector 123 on the base 121 below the hole, when performing press detection, the pressing plate 122 is covered on the base 121 by the hook component, the pressing cover 1222 performs press connection on the product on the floating plate 1211, the electrical connection end of the product is conducted with the PAD point 112 on the test substrate 11 by the electrical connector 123, thereby implementing the test, the electrical connector 123 can be a probe, and a probe seat 1216 for fixing the probe is formed in the receiving groove.

In the above embodiment, the floating plate 1211 is formed with two cavities 1212 arranged side by side, so as to increase the number of products to be tested and increase the testing efficiency.

In one embodiment, the test substrate 11 is formed with grooves 111 corresponding to the crimping devices 12 one by one; a PAD point 112 is formed on the bottom wall of the groove 111, the base 121 of the crimping device 12 is fixed in the groove 111 through a bolt, the tail end of the electric connector 123 is connected and communicated with the PAD point 112, the product is in signal communication with the PAD point 112 through a probe, the PAD point 112 on the test substrate 11 is in contact with the tail end of the probe, and the product is in contact with the head end of the probe, so that the signal communication is realized.

In addition, as shown in fig. 5, the present invention further provides a testing module, which includes a fixture frame 20 and a plurality of testing fixtures 10 as described above, the specific structure of the testing fixture 10 of the testing module refers to the above embodiments, and since the testing module adopts all technical solutions of the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not described herein again; the fixture frame 20 is used for carrying the test fixture 10. By integrating and placing all the test jigs 10 on the jig frame 20, the test efficiency is further improved.

Further, in order to facilitate the test fixture 10 to be pulled out from the fixture rack 20 or the test fixture 10 to be pushed into the fixture rack 20, the display device 13 is provided with a handle 131 capable of pushing and pulling the test fixture 10 on the fixture rack 20.

To sum up, the utility model directly assembles a plurality of crimping devices on the test substrate, and under the premise of ensuring the test quantity of products, the crimping devices are not required to be connected through a large amount of wire harnesses, so that the overall structure occupies small space and is more convenient to maintain; and moreover, the display device fixedly connected with the test substrate can enable a tester to more visually see the test state of each product to be tested, so that the test efficiency is greatly improved.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. A test fixture, comprising:

testing the substrate;

the crimping device is configured to be electrically communicated with an electric connection end of a product to be tested;

2. The test fixture of claim 1, wherein the crimping device includes a base fixed on the test substrate and a press plate capable of being turned upside down relative to the base;

3. The testing fixture of claim 2, wherein the pressing plate is fixed on the base in a manner that the pressing plate can be turned over up and down through a rotating shaft; the rotating shaft is sleeved with a torsion spring which is used for providing turning acting force for the pressing plate.

4. The test fixture of claim 2, further comprising a hook member; the hook member includes at least: a card body formed on the base; and the clamping hook is positioned on the pressing plate and correspondingly matched with the clamping body.

5. The testing fixture of claim 2, wherein the pressing plate comprises a plate body, a pressing cover disposed on the plate body in a floating manner through an elastic member, and a pressing block formed on the pressing cover for connecting the electrical connection end of the product to be tested and the head end of the electrical connection member in a pressing manner.

6. The test fixture of claim 2, wherein the base includes a floating plate thereon forming the load-bearing structure; the floating plate comprises a cavity for accommodating and positioning a product to be detected; a part hole is formed in the bottom wall of the cavity;

7. The test fixture of claim 6, wherein the floating plate has two cavities formed therein and arranged side-by-side.

8. The test fixture of claim 2, wherein grooves corresponding to the crimping devices one to one are formed on the test substrate; and a PAD point is formed on the bottom wall of the groove, the crimping device is fixed in the groove, and the tail end of the electric connector is connected and communicated with the PAD point.

9. The test fixture of claim 1, wherein the display device is fixed to the test substrate by a connector and electrically connected to the test substrate.

10. A test module, comprising a fixture frame and a plurality of test fixtures according to any one of claims 1-9;

the jig frame is used for bearing the test jig.