Patent ID: 9181087
Filing Date: 2015-11-10
Classification: B81B,B81C,H04R,Y10T

Abstract:
1. A microelectromechanical system (MEMS) microphone, including a back plate and a compliant membrane forming a MEMS capacitor between the back plate and the compliant membrane, the back plate including a matrix material, a plurality of tensile elements embedded in the matrix material, and attaching elements, wherein the plurality of tensile elements are arranged in a pattern in the transverse plane of the back plate, the plurality of tensile elements being directly interconnected via the attaching elements, the attaching elements including a metal, the plurality of tensile elements exerting a horizontal tensile stress onto their environment, each one of the plurality of tensile elements having a length between 1 μm and 10 μm and a width between 0.5 μm and 3 μm and including a metal.