Title:
ELECTRET CONDENSER MICROPHONE
Document Type and Number:
Japanese Patent JP2002078091
Kind Code:
A
Abstract:
To provide an electret condenser microphone which can be made thin.
The electret condenser microphone 100 is provided with an electrode plate 110 where a film 111 made of an electret material is formed on one side 110a and a through-hole 110c penetrated from the one side 110a to other side 110b is formed, a diaphragm 120 placed on the one side 110a of the electrode plate 110, a printed circuit board 170 that is placed on the other side 110b of the electrode plate 110, and electronic components 180 that are placed on the printed circuit board 170 between the printed circuit board 170 and the diaphragm 120, and at least part of the electronic components 180 is inserted to the through-hole 110c of the electrode plate 110.
Inventors:
HIMORI TORU
ONO KIMIAKI
YASUNO ISANAGA
ONO KIMIAKI
YASUNO ISANAGA
Application Number:
JP2000263515A
Publication Date:
March 15, 2002
Filing Date:
August 31, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04R19/01; H01G7/02; (IPC1-7): H04R19/01; H01G7/02
Attorney, Agent or Firm:
Ariga Gunichiro
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