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製造業生産測試項目減免高低溫時,常溫設定Guard Band規格的方法

Title: Production Testing Item Eliminating/Sampling Algorith (Guard-band Implementation)

並列摘要


The process capability indices (PCIs) are widely used to evaluate a manufacturer's general process capability. PCIs are generally defined as the ratio of the allowable tolerance of a quality characteristic to the actual process performance. Besides, First Pass Yield (FPY) is also an index to evaluate qualify characteristic progress. However PCIs and FPY are not enough for defining so call ”Guard-band” of some testing items with high/low and room temperature. In order to well control quality cost and have good productivity, manufacturer should have a general rule to evaluate the test items between pre-production and mass production stage. This article is not only to provide a general rule for eliminating/sampling test items, but also a method to facilitating process improvement.

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