请问下面测试要求具体是怎么测的，谢谢
IST test (DC Current Induced thermal Cycling Test) according
to the specification IPC-TM-650, number
Best Regards
Icy Liu (刘旭华)
*********************************************************
E&E Reliability Lab(电气与电子产品部可靠性实验室）
SGS-CSTC Standards
Technical Services Co., Ltd Shenzhen Branch
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