Uses of ATE test data / 目的(mùdì): Reject bad DUTS or quality sort Fabrication process information Design weakness information Devices that did not fail are good only if tests covered
Need to understand parametric testing/理解参数测试
Used to take setup, hold time measurements
Use to compute VIL , VIH , VOL , VOH , tr , tf , td ,
IOL, IOH , IIL, IIH
Tuned to specific systems application
方法:Often done for a random sample of devices
Sample size depends on device quality and system reliability requirements
目的: Avoids putting defective device in a
system where cost of diagnosis exceeds incoming
inspection cost
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3. Test Specifications & Plan 测试(cèshì)标准和方案
阶段:量产前 目的:确保设计正确,满足所有标准
任务:进行功能测试和参数测试,甚至内部节 点的测试: