Invention Grant
- Patent Title: Microphone and method of manufacturing the same
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Application No.: US14883527Application Date: 2015-10-14
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Publication No.: US09749752B2Publication Date: 2017-08-29
- Inventor: Ilseon Yoo
- Applicant: HYUNDAI MOTOR COMPANY
- Applicant Address: KR Seoul
- Assignee: HYUNDAI MOTOR COMPANY
- Current Assignee: HYUNDAI MOTOR COMPANY
- Current Assignee Address: KR Seoul
- Agency: McDermott Will & Emery LLP
- Priority: KR10-2014-0166783 20141126
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H04R19/04 ; H04R19/00 ; H04R1/34 ; H04R31/00

Abstract:
A microphone includes: a first substrate having one or more first penetration holes; a vibrating membrane disposed on the first substrate and covering the first penetration holes; a fixed membrane disposed at a predetermined distance over the vibration membrane and having a plurality of air intake holes; and a phase delay unit bonded by a bonding pad on the fixed membrane, having a plurality of second penetration holes connected to the one or more first penetration holes, and having a phase delay material in the second penetration holes. A method of manufacturing a microphone including a phase delay unit is also disclosed.
Public/Granted literature
- US20160150324A1 MICROPHONE AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2016-05-26
Information query
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