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METHOD FOR REINFORCING BONDED WAFER

发明专利审中
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12权利要求 · 1 独立
§ Ⅰ

卷宗概要

发明人

Ziwen WANG; Wei ZHU; Xing WEI; Wei LI

IPC 分类

H1L 21/324H1L 21/304H1L 21/306H1L 21/311

CPC 分类

H1L21/324H1L21/304H1L21/30604H1L21/31111

The present invention provides a method for reinforcing a bonded wafer, which includes: providing the bonded wafer, which includes a substrate layer, a top silicon layer and an insulating buried oxide layer; performing a first thermal reinforcing process on the bonded wafer; performing an edge grinding process on an unbonded region along the periphery of the top silicon layer; and performing a second thermal reinforcing process on the bonded wafer at a temperature higher than a temperature at which the first thermal reinforcing process is performed.

原文(中文)

The present invention provides a method for reinforcing a bonded wafer, which includes: providing the bonded wafer, which includes a substrate layer, a top silicon layer and an insulating buried oxide layer; performing a first thermal reinforcing process on the bonded wafer; performing an edge grinding process on an unbonded region along the periphery of the top silicon layer; and performing a second thermal reinforcing process on the bonded wafer at a temperature higher than a temperature at which the first thermal reinforcing process is performed.