Mems sound transducer element and method for producing a mems sound transducer element

Abstract

A method for producing a MEMS sound transducer element includes, inter alia, providing a first substrate. The first substrate has a first substrate side, an opposite second substrate side and a membrane layer arranged on the first substrate side. A further method step includes performing a first etching from the second substrate side in a first surface section that is situated opposite the membrane layer, as far as a first depth. A further method step includes performing a second etching of the first substrate from the second substrate side in a second surface section in order to expose the membrane layer in the first surface section and to produce a back volume for the membrane layer, where the second surface section is larger than the first surface section and includes the first surface section.

Dependencies are inferred from the claim text.