Abstract:
A non-uniform stress distribution of a MEMS microphone having a non-circular shape is compensated by a structured back plate that has a compensating structure to provide a stress distribution opposite to that of the membrane.
Abstract:
A top-port MEMS-microphone has an upper side and a bottom side. The microphone includes a MEMS chip with a monolithically connected protection element at the upper side, a backplate, and a membrane. The microphone also includes a sound inlet at the upper side and a mechanical or electrical connection at the bottom side.
Abstract:
A non-uniform stress distribution of a MEMS microphone having a non-circular shape is compensated by a structured back plate that has a compensating structure to provide a stress distribution opposite to that of the membrane.
Abstract:
A top-port MEMS-microphone has an upper side and a bottom side. The microphone includes a MEMS chip with a monolithically connected protection element at the upper side, a backplate, and a membrane. The microphone also includes a sound inlet at the upper side and a mechanical or electrical connection at the bottom side.