发明名称 |
MEMS devices, packaged MEMS devices, and methods of manufacture thereof |
摘要 |
MEMS devices, packaged MEMS devices, and methods of manufacture thereof are disclosed. In one embodiment, a microelectromechanical system (MEMS) device includes a first MEMS functional structure and a second MEMS functional structure. An interior region of the second MEMS functional structure has a pressure that is different than a pressure of an interior region of the first MEMS functional structure. |
申请公布号 |
US9359194(B2) |
申请公布日期 |
2016.06.07 |
申请号 |
US201514606951 |
申请日期 |
2015.01.27 |
申请人 |
Taiwan Semiconductor Manufacturing Company, Ltd. |
发明人 |
Liang Kai-Chih;Cheng Chun-Wen |
分类号 |
H01L29/84;B81C1/00;B81B7/02;B81B7/00 |
主分类号 |
H01L29/84 |
代理机构 |
Slater Matsil, LLP |
代理人 |
Slater Matsil, LLP |
主权项 |
1. A method of manufacturing a microelectromechanical (MEMS) device, the method comprising:
attaching a MEMS device to a substrate, wherein the MEMS device includes
a first MEMS functional structure having a first interior region surrounded by a sealing ring and a second MEMS functional structure having a second interior region surrounded by a second sealing ring having a shallow trench extending from outside the second MEMS functional structure to the second interior region; creating a first pressure in the first interior region of the first MEMS functional structure; and creating a second pressure in the second interior region of the second MEMS functional structure; and sealing the shallow trench to maintain the second pressure in the second interior region. |
地址 |
Hsin-Chu TW |