Patent ID: 9567204
Date: 2017-02-14
CPC Classifications: B81B,B81C

Claim:
1. A microelectromechanical systems (MEMS) device, comprising: an integrated circuit (IC) substrate having IC devices arranged within or over the IC substrate; an interconnect structure arranged over the IC substrate and the IC devices, the interconnect structure including a cavity; a MEMS substrate arranged over the IC substrate and the interconnect structure, wherein the MEMS substrate is a single, semiconductor material and defines a top surface of the cavity, wherein the MEMS substrate includes a MEMS hole in fluid communication with the cavity and extending through the MEMS substrate, wherein the MEMS hole opens into the cavity, or a lateral channel in fluid communication with the cavity, at a location even with the top surface of the cavity; and a sealing layer covering or lining the MEMS hole, wherein the sealing layer contacts a top surface of the MEMS substrate.