发明名称 ELECTRO ACOUSTIC TRANSDUCER
摘要 The invention relates to a condenser microphone element (10) with an electrically conducting transducer membrane (15) having an acoustically active area (20) that is arranged to receive sound waves and to vibrate in response to said sound waves, wherein the membrane (15) is arranged in parallel with and at a distance from a back plate (60), which is formed from a non conductive base (61), which is provided with a conductive layer (65). The conductive layer has an active area (66) that is arranged opposite the acoustically active area (20) of the membrane (15) and has a shape that faces said acoustically active area (20), and is delimited by an area where no conductive layer is provided. The invention further relates to a microphone and to a method of producing the microphone element (10).
申请公布号 US2012230523(A1) 申请公布日期 2012.09.13
申请号 US201013508879 申请日期 2010.11.10
申请人 EHRLUND GOERAN 发明人 EHRLUND GOERAN
分类号 H04R19/04;H04R31/00 主分类号 H04R19/04
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