Patent ID: 7247246
Filing Date: 2007-07-24
Classification: B81B,B81C,H01L

Abstract:
1. A method for making a vertically integrated microelectromechanical systems (MEMS) assembly, the method comprising: providing a MEMS subassembly including a substantially planar frame and at least one MEMS device element within the frame and flexibly connected to the assembly; lithographically defining a standoff on the frame; bonding a cap to the frame, the first bonding being substantially parallel to the frame; bonding a base to a surface of the standoff on the frame facing away from the cap; wherein a gap between the MEMS device element and an electrode on the base is defined by the standoff on the frame; whereby precise control of the gap is provided and the at least one MEMS device element is enclosed within a cavity formed by the frame, the cap, and the base.