ตอบ: Fri Oct 01, 2010 6:46 pm ชื่อกระทู้: Understanding the Value of Signal Integrity Testing
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Technical Note
Understanding the Value of Signal Integrity Testing
Historically, design engineers have used signal integrity (SI) testing as a key part of the design and development of new systems and for sustaining qualifications. While SI testing is extremely valuable in the engineering prototype phase, it is not always the right tool. In fact, its value diminishes as the product design progresses. After debug of early prototypes is complete, powerful tools that perform temperature and voltage margin testing should supplement or replace SI testing, especially for the qualification of memory die shrinks and alternate sourcing.
The proper selection of memory design, test, and verification tools reduces engineering time and increases the probability of detecting potential problems. This technical note describes how these tools can be used to the best advantage, from conception of a new product through end of life. It also provides a detailed description of SI, its uses, and limitations. Finally, it presents an overview of margin testing tools and the value they can add.
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