Reverse bias test sample protection method and device
A technology for testing samples and samples, which is applied in the field of reverse bias test protection, can solve the problems of slow withstand voltage, high test cost, high hardware cost, etc., and achieve accurate and timely protection, increased complexity, and high protection precision.
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[0065] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0066] like Image 6Shown: In order to achieve the flexible setting of the protection trigger current and improve the response speed and protection accuracy of the protection action, the present invention provides several samples to be tested, a grid bias voltage circuit for loading the grid bias voltage to the samples to be tested, and a grid bias voltage circuit for applying The sample to be tested is loaded with a reverse bias voltage circuit; it also includes a fuse group and a low-voltage relay group that are adapted to be connected to the sample to be tested, and the fuse group includes protective fuses that are consistent with the number of samples to be tested, The low-voltage relay group includes low-voltage relays consistent with the number of samples to be tested;
[0067] The first end of each sample to be tested is electrically connected to the gr...
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