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公开(公告)号：US20210029470A1
公开(公告)日：2021-01-28
申请号：US16982497
申请日：2019-03-20
Applicant: Knowles Electronics, LLC
Inventor： Mohsin Nawaz , Shubham Shubham , David Schafer , Michael Pedersen , Claus Furst , Mohammad Shajaan , Jay Cech
Abstract: Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.
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公开(公告)号：US20150307349A1
公开(公告)日：2015-10-29
申请号：US14689565
申请日：2015-04-17
Applicant: Knowles Electronics, LLC
Inventor： Nithya Jayapratha , Peter V. Loeppert , Jay Cech
IPC: B81C99/00
CPC classification number: B81C99/002
Abstract: A tool includes a collet, a vacuum path, and a top die. The collet has a first end and a second end. The second end is configured so as to be coupled to an air suction device. The vacuum path is formed inside and along a length of the collet and extends from the first end to the second end of the collet. The top die is coupled to the first end of the collet. The top die includes a plurality of raised islands, and each of the plurality of raised islands including a hole. The hole communicates with the vacuum path such that a suction applied by the suction device draws air through the hole and then through the vacuum path and is sufficient to pick up a MEMS component disposed in proximity to the hole.
Abstract translation: 工具包括夹头，真空通道和顶模。 夹头具有第一端和第二端。 第二端被配置为联接到空气抽吸装置。 真空通道形成在夹头的内部并且沿着夹头的长度并且从夹头的第一端延伸到第二端。 顶模与筒夹的第一端连接。 上模具包括多个凸起岛，并且多个凸起岛中的每一个包括孔。 孔与真空路径连通，使得由抽吸装置施加的抽吸通过孔吸入空气，然后通过真空路径，并且足以拾取靠近该孔设置的MEMS部件。
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公开(公告)号：US11825266B2
公开(公告)日：2023-11-21
申请号：US16982497
申请日：2019-03-20
Applicant: Knowles Electronics, LLC
Inventor： Mohsin Nawaz , Shubham Shubham , David Schafer , Michael Pedersen , Claus Furst , Mohammad Shajaan , Jay Cech
CPC classification number: H04R19/04 , B81B7/02 , B81C1/00341 , G01L9/0072 , G01L19/14 , H04R31/00 , B81B2201/0257 , B81B2201/0264 , B81B2203/0127 , B81B2203/0136 , B81B2207/03 , B81C2201/0109 , B81C2201/0132 , H04R2201/003
Abstract: Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.
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