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