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Warpage issue of wafer level package (WLP) has caught the attention of WLP industry. This paper aims at the warpage characteristics and optimization of the WLP (consisting of silicon MEMS wafer and silicon cover wafer) with glass frit bonding. Finite-element method (FEM) was used to study the warpage and stress optimization of the Si-Si bonding WLP. Some factors which affect WLP warpage, such as CTE...
Warpage issue of wafer level package (WLP) has caught the attention of WLP industry. This paper aims at the warpage characteristics and optimization of the WLP (consisting of silicon MEMS wafer and silicon cover wafer) with glass frit bonding. Finite-element method (FEM) was used to study the warpage and stress optimization of the Si-Si bonding WLP. Some factors which affect WLP warpage, such as CTE...
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