How to judge the quality of IC test socket meets the requirements?

How to judge the quality of IC test socket meets the requirements?

Currently, there are many types of test sockets in the global market, such as burn in sockets, programming socket, functional test socket, high-frequency test socket, etc., among which, depending on the test conditions, the focus of quality testing is also different. For example, the burn in test socket has international test standards. As mentioned in the previous article, there are requirements for high temperature, humidity, test duration, etc., according to international standards, the test piece materials, spring pin requirements, It is also different. Therefore, to understand the quality of the test socket which is good or bad, you need to confirm your requirements. After you have the target items, you can start testing whether the corresponding parameters meet the requirements of your test.

After confirming the target, obtain the test socket from the test socket supplier. Then you can start the test accordingly. Take the burn in test socket as an example, the test process: size check - test socket performance - Burn-in performance - mechanical and electrical performance.

Regarding the socket size, the first is the length and width of the test socket, then the length and width of the chip placement position, and finally the pin spacing between the test socket and the chip. This is the most basic test requirement to confirm that the test socket is in proper contact with the chip.

Further rigorous testing requires an aid to test, using an electron microscope and EDS, using cross-sectional analysis to confirm contact between the PIN pin of the test socket and the IC pad. At the same time, the electron microscope was used to check the PIN of the test socket to leave marks on the pad of the chip to confirm the influence of the test socket on the chip during the test. This is also one of the test socket quality criteria. As we all know, the test socket is used to test the quality of the chip, provided that the quality of the chip is not affected.

As we all know, the test of the burn in socket is tested by high temperature and other conditions to meet the test requirements of the chip. Under normal circumstances, above 135 ° C, relative humidity of 85%, tested for more than 100 hours. This part is ultimately based on the test requirements of the chip.

Sometimes, the chip test engineer also needs to verify the service life of the test socket. In this case, it is necessary to do the burn in socket and do multiple chip plug-in tests. Used to confirm the service life of the test socket. This part is also one of the evaluation conditions for confirming the quality of the test socket. It is also one of the conditions for the price of the test socket.

Finally, the mechanical properties and electrical performance results of the test socket, namely contact force, operating force, contact resistance, insulation resistance, withstand voltage test, and maximum current.

Any product inquiry,please contact with ANDK socket.

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