Integrated circuit aging test board golden finger surface resistance test switching tool

Abstract

The utility model belongs to the technical field of semiconductor integrated circuit aging tests, and discloses an integrated circuit aging test board golden finger surface resistance test switching tool, which comprises an aging test board, a first golden finger slot seat, a second golden finger slot seat, a first connecting plate, a second connecting plate and a connecting end, and the first golden finger slot seat is connected with the first connecting plate in a one-to-one correspondence manner, and the second golden finger slot seat is connected with the second connecting plate in a one-to-one correspondence manner. According to the utility model, the application range is wide, the connection mode is changed into a plug-pull mode to rapidly complete the clamping of the burn-in board, the golden finger slot is used to ensure full contact and avoid scratching the gold plating layer on the surface of the golden finger, the mounting hole outside the tool enables the plug-in of the burn-in board to be more convenient and rapid, and the increase of the detection surface area enables the reliability of test data to be higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductor integrated circuit aging test, in particular to a switching tool suitable for testing the surface resistance of gold fingers on an integrated circuit aging test board. Background Art

[0002] Burn-in test is an essential item in "Test Methods and Procedures for Microelectronic Devices". As the carrier of components in burn-in test, it is very important to monitor the functions and performance of burn-in test board. The gold finger surface of burn-in test board is easily affected by oxidation and pollutants, which will cause the surface resistance to increase. The contact resistance of the gold finger of the test board is (5-10) mΩ when it leaves the factory. After long-term use, due to the wear and oxidation of the gold plating layer, it gradually changes to hundreds of milliohms to tens of ohms or even open circuit. If a large current passes through high impedance, it may cause excessive energy consumption and cause dangerous overheating of the contacts. For test boards that have not been tested for surface resistance, there are safety and quality risks during the continuous 48h-96h test under the test conditions of rated power current / voltage and temperature +125℃. The surface resistance detection of burn-in test board mainly detects the surface resistance performance of VCC, VMUX, VEE, and GND ports that are prone to dangerous overheating during the test.

[0003] In China, micro-ohmmeter or digital multimeter is usually used for testing, and the test pen is used to directly contact the gold finger surface of the VCC, VMUX, VEE, and GND ports of the burn-in board, and the test is performed in a multi-point test mode. The existing mode has the following defects: because the test pen and the gold finger are in point contact, there are problems such as insufficient positive pressure, easy scratching of the gold-plated layer on the gold finger surface, small contact area, and low efficiency of multi-point testing. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the test pen and the gold finger are in point contact, which has the problems of insufficient positive pressure, easy scratching of the gold-plated layer on the surface of the gold finger, small contact area and low efficiency of multi-point testing.

[0005] In order to solve the above technical problems, the specific technical solutions of the utility model are as follows:

[0006] An integrated circuit aging test board gold finger surface resistance test adapter tooling includes an aging test board, a first gold finger slot seat, a second gold finger slot seat, a first connecting plate, a second connecting plate and a connecting end; the first gold finger slot seat is connected to the first connecting plate, and the second gold finger slot seat is connected to the second connecting plate in a one-to-one correspondence; the top layer and bottom layer pins of the first foot of the first connecting plate are respectively connected to the first foot and the second foot of the connecting end, the top layer and bottom layer pins of the fourth foot are respectively connected to the third foot and the fourth foot of the connecting end, and the top layer and bottom layer pins of the fifth foot are respectively connected to the fourth foot and the fifth foot of the connecting end. The 5th and 6th pins of the connection end are connected, and the top and bottom pins of the 8th pin are respectively connected to the 7th and 8th pins of the connection end; the top and bottom pins of the 36th pin of the second connection board are respectively connected to the 9th and 10th pins of the connection end, the top and bottom pins of the 32nd pin are respectively connected to the 11th and 12th pins of the connection end, the top and bottom pins of the 31st pin are respectively connected to the 13th and 14th pins of the connection end, and the top and bottom pins of the 28th pin are respectively connected to the 15th and 16th pins of the connection end; the tooling is set on a workbench or a wall through an external mounting seat.

[0007] Among them, the first gold finger slot seat is a 2*50 spacing 2.54mm gold finger slot seat.

[0008] Among them, the second gold finger slot seat is a 2*36 spacing 2.54mm gold finger slot seat.

[0009] Wherein, the first connecting plate and the second connecting plate are both double-layer PCB boards.

[0010] Among them, the top layer 13 pins and the bottom layer 14 pins of the gold finger socket are welded to the bottom layer of the corresponding connecting board.

[0011] Among them, the VCC port, VMUX port, VEE port, and GND port in the aging test board are connected to the first gold finger slot seat and the second gold finger slot seat in a plug-in manner.

[0012] The utility model has the following advantages: it can be used with a micro-ohmmeter, a digital multimeter or a special test device, has a wide range of applications, the connection mode is changed to a plug-in type to quickly complete the clamping of the aging board, the use of a gold finger slot ensures full contact and avoids scratching the gold-plated layer on the surface of the gold finger, the mounting holes on the outside of the tooling make the plugging and unplugging of the aging board more convenient and quick, and the increase in the detection surface area makes the reliability of the test data higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the transfer tooling;

[0014] Figure 2 To transfer the back of the tooling;

[0015] Figure 3 This is a schematic diagram of the connection between the gold finger slot and the connecting board;

[0016] Figure 4 This is a clamping diagram. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1-Figure 4 As shown, the purpose of the utility model is to provide a transfer tool for detecting the surface resistance of the gold finger of the integrated circuit burn-in test board. Its characteristics are: the transfer tool is suitable for detecting the surface resistance of the gold finger VCC, VMUX, VEE, and GND ports of the burn-in test board, and is suitable for micro-ohmmeters, digital multimeters, or special test devices, and has a wide range of applications. The tool clamping slot uses a gold finger slot, and the positive pressure applied by the spring sheet inside the slot seat makes the gold finger of the tested burn-in board fully contact with the slot, while avoiding scratching the gold-plated layer on the surface of the gold finger. Compared with contact with a test lead, the contact area of ​​the tool is larger and the reliability of the test data is higher. The connection between the slot seat and the burn-in board is plug-in type, and the burn-in board can be clamped quickly. The tool can be fixed on a workbench or wall through the mounting seat outside the tool, making the plug-in and pull-out of the burn-in board more convenient and quick.

[0019] In order to achieve the above purpose, the utility model is composed of three parts: a gold finger slot, a connection end and a connection plate. The gold finger slot is connected to the connection plate, and the connection plate is connected to the connection end.

[0020] The working principle of the utility model is as follows: the Kelvin four-wire connection is adopted, the detection device is connected to the adapter tooling, and the output test current of the detection device is applied to the top and bottom gold finger surfaces of the aging board in the gold finger slot through the connection board inside the adapter tooling. The test current flows through the gold finger surface and is output to the detection device through the output end of the connection board to form a loop to complete the detection.

[0021] Embodiment 1

[0022] The utility model has two groups of aging board plug-in ports, a first gold finger slot seat 1 with a 2*50 spacing of 2.54mm and a second gold finger slot seat 2 with a 2*36 spacing of 2.54mm, which are fixed through mounting holes 7, 8, 9, and 10, and mounting seats 3 and 4 can fix the tooling on a workbench or a wall, and a connection end 5 is a cable seat (16 cores) for connecting detection signals.

[0023] like Figure 2, a schematic diagram of the back of the utility model. The first connecting board 11 and the second connecting board 12 are respectively connected to the first gold finger slot seat 1 and the second gold finger slot seat 2 by welding, wherein the top and bottom pins of the first foot of the first connecting board 11 are respectively connected to the 1st and 2nd feet of the connection end 5 (VCC input), the top and bottom pins of the 4th foot are respectively connected to the 3rd and 4th feet of the connection end 5 (VCC output), the top and bottom pins of the 5th foot are respectively connected to the 5th and 6th feet of the connection end 5 (VMUX input), and the top and bottom pins of the 8th foot are respectively connected to the 5th and 6th feet of the connection end 5 (VMUX input). The top and bottom pins of the 36th pin of the connecting board 12 are respectively connected to the 9th and 10th pins of the connecting terminal 5 (VEE input), the top and bottom pins of the 32nd pin are respectively connected to the 11th and 12th pins of the connecting terminal 5 (VEE output), the top and bottom pins of the 31st pin are respectively connected to the 13th and 14th pins of the connecting terminal 5 (VMUX input), and the top and bottom pins of the 28th pin are respectively connected to the 15th and 16th pins of the connecting terminal 5 (VMUX output).

[0024] like Figure 3 The gold finger socket of the utility model is connected to the connecting board in a one-to-one correspondence. The connecting board is a double-layer PCB board. When installing, the top layer 13 pins and the bottom layer 14 pins of the gold finger socket need to be welded to the corresponding bottom layer of the connecting board.

[0025] The VCC port 15 , the VMUX port 16 , the VEE port 17 , and the GND port 18 in the aging test board 19 are connected to the first gold finger socket seat 1 and the second gold finger socket seat 2 in a plug-in manner.

[0026] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these modifications and improvements should also be considered to belong to the protection scope of the present invention.

Claims

1. An integrated circuit burn-in test board gold finger surface resistance test adapter tooling, It is characterized in that It includes an aging test board, a first gold finger slot seat, a second gold finger slot seat, a first connecting plate, a second connecting plate and a connecting end; the first gold finger slot seat is connected to the first connecting plate, and the second gold finger slot seat is connected to the second connecting plate in a one-to-one correspondence; the top layer and bottom layer pins of the first foot of the first connecting plate are respectively connected to the first foot and the second foot of the connecting end, the top layer and bottom layer pins of the fourth foot are respectively connected to the third foot and the fourth foot of the connecting end, the top layer and bottom layer pins of the fifth foot are respectively connected to the fifth foot and the sixth foot of the connecting end, and the top layer and bottom layer pins of the eighth foot are respectively connected to the seventh foot and the eighth foot of the connecting end; The top and bottom pins of the 36th pin of the second connecting board are respectively connected to the 9th and 10th pins of the connecting end, the top and bottom pins of the 32nd pin are respectively connected to the 11th and 12th pins of the connecting end, the top and bottom pins of the 31st pin are respectively connected to the 13th and 14th pins of the connecting end, and the top and bottom pins of the 28th pin are respectively connected to the 15th and 16th pins of the connecting end; the tooling is set on a work surface or a wall through an external mounting seat.

2. The integrated circuit burn-in test board gold finger surface resistance test adapter tooling according to claim 1, It is characterized in that The first gold finger slot seat is a 2*50 pitch 2.54mm gold finger slot seat.

3. The integrated circuit burn-in test board gold finger surface resistance test adapter tooling according to claim 1, It is characterized in that The second gold finger slot seat is a 2*36 spacing 2.54mm gold finger slot seat.

4. The integrated circuit burn-in test board gold finger surface resistance test adapter tooling according to claim 1, It is characterized in that The first connecting board and the second connecting board are both double-layer PCB boards.

5. The integrated circuit burn-in test board gold finger surface resistance test adapter tooling according to claim 4, It is characterized in that The top layer 13 pins and the bottom layer 14 pins of the gold finger socket are welded to the bottom layer of the corresponding connecting board.

6. The integrated circuit burn-in test board gold finger surface resistance test adapter tooling according to claim 1, It is characterized in that The VCC port, VMUX port, VEE port, and GND port in the aging test board are connected to the first gold finger slot seat and the second gold finger slot seat in a plug-in manner.

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