- 专利标题: METHOD FOR MANUFACTURING A MEMS DEVICE BY FIRST HYBRID BONDING A CMOS WAFER TO A MEMS WAFER
-
申请号: US17696299申请日: 2022-03-16
-
公开(公告)号: US20220204340A1公开(公告)日: 2022-06-30
- 发明人: Hung-Hua Lin , Chang-Ming Wu , Chung-Yi Yu , Ping-Yin Liu , Jung-Huei Peng
- 申请人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 主分类号: B81C1/00
- IPC分类号: B81C1/00 ; B81B7/00 ; H01L23/00
摘要:
A microelectromechanical system (MEMS) structure and method of forming the MEMS device, including forming a first metallization structure over a complementary metal-oxide-semiconductor (CMOS) wafer, where the first metallization structure includes a first sacrificial oxide layer and a first metal contact pad. A second metallization structure is formed over a MEMS wafer, where the second metallization structure includes a second sacrificial oxide layer and a second metal contact pad. The first metallization structure and second metallization structure are then bonded together. After the first metallization structure and second metallization structure are bonded together, patterning and etching the MEMS wafer to form a MEMS element over the second sacrificial oxide layer. After the MEMS element is formed, removing the first sacrificial oxide layer and second sacrificial oxide layer to allow the MEMS element to move freely about an axis.
公开/授权文献
信息查询