Patent ID: 8835207
Filing Date: 2014-09-16
Classification: B81B,B81C,G01L,H01L

Abstract:
1. A method of manufacturing a semiconductor integrated circuit device having a micro electro mechanical system (MEMS) element, comprising the steps of: (a) forming a wiring layer and a MEMS element having a movable part over a first main surface of a semiconductor wafer having the first main surface and a second main surface; (b) fixing the movable part of the MEMS element; (c) after the step (b), forming a rewiring layer over the wiring layer over the first main surface of the semiconductor wafer while the movable part of the MEMS element is fixed; (d) after the step (c), dicing the semiconductor wafer while the movable part of the MEMS element is fixed; and (e) after the step (d), releasing the movable part of the MEMS element by etching the first main surface of the semiconductor wafer.