Technique for fabrication of foil electret

A technique for the fabrication of thin film electrets designed for use in electroacoustic transducers involves depositing a thin film of aluminum or titanium upon a perfluorinated foil and etching away the film prior to deposition of gold. The resultant structure evidences superior adhesion charact...

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Bibliographische Detailangaben
Hauptverfasser:	WEST, JAMES EDWARD, SCHONHORN, HAROLD, SESSLER, GERHARD MARTIN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PUBLIC ADDRESS SYSTEMS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING
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Beschreibung
Zusammenfassung:	A technique for the fabrication of thin film electrets designed for use in electroacoustic transducers involves depositing a thin film of aluminum or titanium upon a perfluorinated foil and etching away the film prior to deposition of gold. The resultant structure evidences superior adhesion characteristics and electrical characteristics comparable to those previously described.