Invention Grant
US09570421B2 Stacking of multiple dies for forming three dimensional integrated circuit (3DIC) structure 有权
堆叠多个模具用于形成三维集成电路(3DIC)结构

Stacking of multiple dies for forming three dimensional integrated circuit (3DIC) structure
Abstract:
The embodiments described provide methods and structures for forming support structures between dies and substrate(s) of a three dimensional integrated circuit (3DIC) structures. Each support structure adheres to surfaces of two neighboring dies or die and substrate to relieve stress caused by bowing of the die(s) and/or substrate on the bonding structures formed between the dies or die and substrate. The cost of the support structures is much lower than other processes, such as thermal compression bonding, to reduce the effect of bowing of dies and substrates on 3DIC formation. The support structures improves yield of 3DIC structures.
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