Achieving quality levels of 100 DPM: it's possible... but roll up your sleeves and be prepared to do some work

摘要

The methods that are required to meet aggressive DPM objectives are thorough delay tests, very high coverage test patterns, IDDQ test, RAM tests, multiple temperature tests, functional tests, statistical methods, parametric test limits, customer specific tests, DFT. The trade-offs of driving quality levels to 100 DPM include yield loss, schedule impacts, engineering costs.