Patent ID: 8652961
Filing Date: 2014-02-18
Classification: B81B,B81C,H01L

Abstract:
1. A method for manufacturing a CMOS-MEMS integrated device, the method comprising: providing a CMOS integrated circuit device having a substrate and a metal conductor, the metal conductor being electrically isolated from the substrate; etching a first portion and a second portion of the metal conductor within the CMOS integrated circuit device to form an unetched portion of the metal conductor; forming a MEMS layer overlying the CMOS integrated circuit device, the MEMS layer being coupled to the metal conductor; patterning the MEMS layer with a plasma etching process to form a MEMS device overlying the CMOS integrated circuit device, the MEMS device being formed overlying the unetched portion of the metal conductor, wherein the unetched portion of the metal conductor is protected from the plasma during the plasma etching process, wherein the first portion of the metal conductor is etched to remove a portion that would be directly exposed to plasma during the plasma etching process, wherein the second portion of the metal conductor is etched to remove a portion that would be indirectly exposed to plasma during the plasma etching process; and electrically coupling the metal conductor to the substrate of the CMOS integrated circuit device.