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Machine translation
1. (WO1997039464) THIN FILM ELECTRET MICROPHONE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/039464    International Application No.:    PCT/US1997/006554
Publication Date: 23.10.1997 International Filing Date: 18.04.1997
Chapter 2 Demand Filed:    13.11.1997    
IPC:
H04R 19/01 (2006.01), H04R 25/00 (2006.01)
Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY [US/US]; 1201 East California Boulevard, Pasadena, CA 91125 (US)
Inventors: TAI, Yu-Chong; (US).
HSU, Tseng-Yang; (US).
HSIEH, Wen, H.; (US)
Agent: HARRIS, Scott, C.; Fish & Richardson P.C., Suite 1400, 4225 Executive Square, La Jolla, CA 92037 (US)
Priority Data:
60/016,056 18.04.1996 US
Title (EN) THIN FILM ELECTRET MICROPHONE
(FR) MICROPHONE ELECTRET CONSTITUE D'UN FILM MINCE
Abstract: front page image
(EN)A method of making an electret microphone comprising juxtaposing a microphone membrane unit (30) and a microphone back plate (32), at least one of which includes a micro-machined electret layer (6) formed on a support structure, thereby producing a highly reliable, inexpensive microphone. Thermal annealing is used to stabilize the implanted charge.
(FR)Procédé de fabrication d'un microphone électret consistant à juxtaposer une unité à membrane de microphone (30) et une contre-plaque de microphone (32), au moins l'un de ces deux éléments ayant une couche électret micro-usinée (6) formée sur une structure de support. Ce procédé permet d'obtenir un microphone très fiable et peu coûteux. Un recuit thermique permet de stabiliser la charge implantée.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)