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US08479578B2 Assessing metal stack integrity in sophisticated semiconductor devices by mechanically stressing die contacts 有权
通过机械应力模具接触来评估复杂半导体器件中的金属堆叠完整性

Assessing metal stack integrity in sophisticated semiconductor devices by mechanically stressing die contacts
Abstract:
The metallization system of complex semiconductor devices may be evaluated in terms of mechanical integrity on the basis of a measurement system and measurement procedures in which individual contact elements, such as metal pillars or solder bumps, are mechanically stimulated, while the response of the metallization system, for instance in the form of directly measured forces, is determined in order to quantitatively evaluate mechanical status of the metallization system. In this manner, the complex material systems and the mutual interactions thereof may be efficiently assessed.
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