CN-122017393-A - Electrostatic protection element testing tool, testing method and related device

CN122017393ACN 122017393 ACN122017393 ACN 122017393ACN-122017393-A

Abstract

The utility model provides an electrostatic protection component test fixture, test method and relevant device are applied to element test technical field, wherein, test fixture is including being used for the test daughter board of being connected with the electrostatic protection component that awaits measuring, through the test mother board that connecting circuit and switchable circuit are connected with test daughter board, through the test system that test mother board and electrostatic protection component that await measuring are connected, test system is through the output signal of controlling its control port, the break-make of switchable circuit on the control test mother board, and on this basis through the signal of controlling test system's connection port and test port, realize the test to the different parameters of electrostatic protection component that awaits measuring, avoid the connection relation of manual transformation test instrument and electrostatic protection component that awaits measuring in order to realize the test to the different parameters of electrostatic protection component that awaits measuring, be favorable to promoting the test efficiency to electrostatic protection component, save the cost of labor.

Inventors

LIU BO
HU WENJU
FENG ZHENPING
LI JING
ZHANG QIAN
ZHANG KEXIN

Assignees

航天科工防御技术研究试验中心

Dates

Publication Date: 20260512
Application Date: 20260105

Claims (13)

1. An electrostatic protection component test fixture, characterized by comprising: The test sub-board is used for being connected with the electrostatic protection element to be tested; The test motherboard comprises a connecting circuit and a switchable circuit, wherein the connecting circuit and the switchable circuit are connected with the test daughter board so as to be connected with the electrostatic protection element to be tested through the test daughter board; The test system comprises a control port, a connection port and a test port, wherein the connection port is connected with the electrostatic protection element to be tested through the connection circuit, the test port is connected with the electrostatic protection element to be tested through the switchable circuit, and the control port is connected with the switchable circuit to control the on-off of the switchable circuit; the test system cooperatively controls the control port, the connection port and the test port to realize the test of the electrostatic protection element to be tested.
2. The electrostatic protection component testing tool according to claim 1, wherein the electrostatic protection component to be tested comprises a first end, a second end and at least one test point, the test sub-board comprises a first connection end, a second connection end and at least one test end, the first connection end is used for being connected with the first end, the second connection end is used for being connected with the second end, and the at least one test end is connected with the at least one test point in a one-to-one correspondence manner.
3. The electrostatic protection component testing tool according to claim 2, wherein the testing system comprises two connection ports, at least one testing port and a control port, the connection circuit comprises a first circuit and a second circuit, the switchable circuit comprises at least one third circuit, the first circuit is connected with the first connection port and one connection port, the second circuit is connected with the second connection port and the other connection port, one end of the third circuit is connected with the testing port in a one-to-one correspondence manner, the other end of the third circuit is connected with the testing port in a one-to-one correspondence manner, and the control port is connected with the third circuit in a one-to-one correspondence manner so as to control on-off of each third circuit respectively.
4. The electrostatic protection component testing tool according to claim 3, wherein the testing system comprises a controller, and the controller is configured to control two connection ports and at least one test port and at least one control port of the testing system, so as to implement a test on the electrostatic protection component to be tested.
5. The electrostatic protection component testing fixture according to claim 3, wherein the electrostatic protection component to be tested comprises four test points, the test sub-board comprises four test terminals, the test motherboard comprises four third circuits, the test system comprises four test ports, each test port is connected with a third circuit, each third circuit is connected with a test terminal, and each test terminal is connected with a test point.
6. The electrostatic protection component testing tool according to claim 1, further comprising an LCR tester, wherein the LCR tester is configured to connect with the electrostatic protection component to be tested through the test motherboard and the test daughter board.
7. The electrostatic protection component testing tool according to claim 1, further comprising a clamping voltage tester, wherein the clamping voltage tester is configured to be connected to the electrostatic protection component to be tested through the test motherboard and the test daughter board.
8. A method for testing an electrostatic protection component, applied to the electrostatic protection component testing tool according to any one of claims 1 to 7, the method comprising: connecting a test daughter board with a test mother board, and connecting the test mother board with a test system; Connecting an electrostatic protection element to be tested with the test sub-board; And starting the test system to realize the test of the electrostatic protection element to be tested through a control port, a test port and a connection port of the test system.
9. The method as recited in claim 8, further comprising: Connecting the test mother board with an LCR tester, and connecting the electrostatic protection element to be tested with the test daughter board; and starting the LCR tester to test the capacitance of the electrostatic protection element to be tested.
10. The method as recited in claim 8, further comprising: Connecting the test motherboard with a clamp voltage tester, and connecting the electrostatic protection element to be tested with the test daughter board; and starting the clamping voltage tester to test the clamping voltage of the electrostatic protection element to be tested.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor implements the method of any of claims 8-10 when executing the program.
12. A non-transitory computer readable storage medium, the non-transitory computer readable storage medium stores computer instructions, characterized in that the computer instructions are for causing a computer to perform the method of claim 8.
13. A computer program product comprising computer program instructions which, when run on a computer, cause the computer to perform the method of any of claims 8-10.

Description

Electrostatic protection element testing tool, testing method and related device Technical Field The present application relates to the field of device testing technologies, and in particular, to a testing tool for an electrostatic protection device, a testing method and a related device. Background Electrostatic discharge (ESD) protection devices are critical for protecting electronic devices from electrostatic discharge, and improving the reliability of ESD protection devices is not satisfactory in order to reduce the loss of electronic devices due to ESD interference. The existing test method for the ESD protection element mainly relies on manual clamping test, pins in the ESD protection element are clamped by using test clamps respectively for testing one by one, the test mode is low in efficiency and complex in process, clamping test is needed for each pin, and problems generally exist, such as pin damage easily caused when the test clamp is used for connecting a device, or low test precision caused by loose contact between the test clamp and the pins of the device. Disclosure of Invention Therefore, the present application is directed to a testing tool for an electrostatic protection device, a testing method and a related apparatus. Based on the above object, the present application provides an electrostatic protection element testing tool, comprising: The test sub-board is used for being connected with the electrostatic protection element to be tested; The test motherboard comprises a connecting circuit and a switchable circuit, wherein the connecting circuit and the switchable circuit are connected with the test daughter board so as to be connected with the electrostatic protection element to be tested through the test daughter board; The test system comprises a control port, a connection port and a test port, wherein the connection port is connected with the electrostatic protection element to be tested through the connection circuit, the test port is connected with the electrostatic protection element to be tested through the switchable circuit, and the control port is connected with the switchable circuit to control the on-off of the switchable circuit; the test system cooperatively controls the control port, the connection port and the test port to realize the test of the electrostatic protection element to be tested. Further, the electrostatic protection element to be tested comprises a first end, a second end and at least one test point, the test sub-board comprises a first connecting end, a second connecting end and at least one test end, the first connecting end is used for being connected with the first end, the second connecting end is used for being connected with the second end, and the at least one test end is connected with the at least one test point in a one-to-one correspondence mode. Further, the test system comprises two connection ports, at least one test port and a control port, the connection circuit comprises a first circuit and a second circuit, the switchable circuit comprises at least one third circuit, the first circuit is connected with the first connection port and one connection port, the second circuit is connected with the second connection port and the other connection port, one end of the third circuit is connected with the test port in a one-to-one correspondence manner, the other end of the third circuit is connected with the test port in a one-to-one correspondence manner, and the control port is connected with the third circuit in a one-to-one correspondence manner so as to respectively control the on-off of each third circuit. Further, the test system comprises a controller, wherein the controller is used for controlling two connection ports, at least one test port and at least one control port of the test system so as to realize the test of the electrostatic protection element to be tested. Further, the electrostatic protection element to be tested comprises four test points, the test daughter board comprises four test ends, the test mother board comprises four third circuits, the test system comprises four test ports, each test port is connected with one third circuit, each third circuit is connected with one test end, and each test end is connected with one test point. Further, the test fixture further comprises an LCR tester, wherein the LCR tester is used for being connected with the electrostatic protection element to be tested through the test mother board and the test daughter board. Further, the test fixture further comprises a clamping voltage tester, wherein the clamping voltage tester is used for being connected with the electrostatic protection element to be tested through the test mother board and the test daughter board. Based on the same inventive concept, the application also provides a testing method of the electrostatic protection element, which is applied to the testing fixture of the electrostatic protection element, and comprises the follo