Invention Grant
US09439017B2 Method for manufacturing a plurality of microphone structures, microphone and mobile device
有权
用于制造多个麦克风结构,麦克风和移动设备的方法
- Patent Title: Method for manufacturing a plurality of microphone structures, microphone and mobile device
- Patent Title (中): 用于制造多个麦克风结构,麦克风和移动设备的方法
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Application No.: US14176182Application Date: 2014-02-10
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Publication No.: US09439017B2Publication Date: 2016-09-06
- Inventor: Ursula Hedenig , Daniel Maurer , Thomas Grille , Peter Irsigler , Soenke Pirk , Andre Brockmeier
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee Address: DE Neubiberg
- Main IPC: H04R31/00
- IPC: H04R31/00 ; H04R23/00 ; H04R19/00

Abstract:
In various embodiments, a method for manufacturing microphone structures is provided. The method may include: Providing a substrate having a front side and a back side, the backside facing away from the front side, and having an inner area and an outer area laterally surrounding the inner area, with the inner area comprising a plurality of microphone areas each microphone are being provided for one microphone of the plurality of microphones; Forming a plurality of layers for the plurality of microphones in the microphone areas on the front side of the substrate; Forming a recess from the backside of the substrate with the recess laterally overlapping the entire inner area; Forming a plurality of cavities into a bottom of the recess with each cavity of the plurality of cavities being formed in one of the microphone areas; Processing the layers to form the plurality of microphone structures, wherein each microphone structure comprises at least one layer of the plurality of layers and one cavity; and Separating the plurality of microphone structures from each other.
Public/Granted literature
- US20150230039A1 METHOD FOR MANUFACTURING A PLURALITY OF MICROPHONE STRUCTURES, MICROPHONE AND MOBILE DEVICE Public/Granted day:2015-08-13
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