The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2015
Filed:
Nov. 05, 2010
Jochen Zoellin, Stuttgart, DE;
Axel Grosse, Pfullingen, DE;
Bernhard Gehl, Wannweil, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
Measures for improving the acoustic properties of a microphone component produced in sacrificial layer technology. The micromechanical microphone structure of such a component is implemented in a layered structure, and includes at least one diaphragm, which is deflectable by sound pressure and which is implemented in a diaphragm layer, and a stationary acoustically permeable counterelement for the diaphragm which is implemented in a thick functional layer above the diaphragm layer and which is provided with through openings for introducing sound. The through openings for introducing sound are situated above the middle region of the diaphragm, while perforation openings which are largely acoustically passive are provided in the counterelement, above the edge region of the diaphragm.