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1. 发明授权

US06804620B1 Calibration method for system performance validation of automatic test equipment 失效
标题翻译：自动测试设备系统性能验证的校准方法
公开(公告)号：US06804620B1
公开(公告)日：2004-10-12
申请号：US10393876
申请日：2003-03-21
申请人： Douglas Larson , Anthony Le , Carol Qiao Tong , Rochit Rajsuman
发明人： Douglas Larson , Anthony Le , Carol Qiao Tong , Rochit Rajsuman
IPC分类号： G06F900
CPC分类号： G01R31/3191 , G01R31/31922
摘要： An ATE calibration method and system that does not require external test equipment to calibrate individual functional pins and provides balanced timing skews among the functional pins and pincards is disclosed. A functional pin in the test system is selected as a reference or “golden” pin and another is selected as a precision measurement unit (PMU). External test equipment and the reference PMU are used to measure the AC and DC characteristics of the reference pin, and any deviation represents a measurement error in the reference PMU. All functional pins in the test system can be measured against the reference pin using the reference PMU, taking into account the measurement error, without the need for external test equipment. To ensure that skews are balanced among all pins, the location of the reference pin is selected to be as close as possible to the midpoint of the functional pin range.
摘要翻译：公开了一种不需要外部测试设备来校准各个功能引脚并在功能引脚和引脚卡之间提供平衡的时序偏移的ATE校准方法和系统。选择测试系统中的功能引脚作为参考或“黄金”引脚，另一个选择为精密测量单元（PMU）。外部测试设备和参考PMU用于测量参考引脚的交流和直流特性，任何偏差表示参考PMU中的测量误差。测试系统中的所有功能引脚可以使用参考PMU测量参考引脚，同时考虑到测量误差，无需外部测试设备。为了确保所有引脚之间的偏差平衡，参考引脚的位置选择为尽可能靠近功能引脚范围的中点。

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