公开(公告)号：US20180352339A1

公开(公告)日：2018-12-06

申请号：US15987346

申请日：2018-05-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Marek Sebastian PIECHOCINSKI ,  Richard Ian LAMING ,  Tsjerk Hans HOEKSTRA ,  Colin Robert JENKINS ,  Axel THOMSEN

IPC: H04R19/04 ,  B81B3/00

Abstract: The application describes MEMS transducers having a patterned membrane electrode which incorporates a plurality of openings or voids. A conductive element is provided on the surface of the underlying membrane within the opening.

公开(公告)号：US20180002159A1

公开(公告)日：2018-01-04

申请号：US15543467

申请日：2016-01-25

Applicant: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.

Inventor： Scott Lyall CARGILL ,  Colin Robert JENKINS ,  Euan James BOYD ,  Richard Ian LAMING

IPC: B81B3/00 ,  H04R19/04 ,  H04R19/00

CPC classification number: B81C1/00666 ,  B81B3/0021 ,  B81B3/0072 ,  B81B2201/0257 ,  B81B2203/0127 ,  B81C1/00182 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/15151 ,  H04R19/005 ,  H04R19/04 ,  H01L2924/00014

Abstract: The application describes MEMS transducer having a flexible membrane and which seeks to alleviate and/or redistribute stresses within the membrane layer. A membrane having a first/active region and a second/inactive region is described.

公开(公告)号：US20190075401A1

公开(公告)日：2019-03-07

申请号：US16110158

申请日：2018-08-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Richard Ian LAMING ,  Marek Sebastian PIECHOCINSKI

IPC: H04R19/04 ,  H04R7/04

Abstract: The application relates to a MEMS transducer comprising first and second conductive elements which defines a first capacitor of the transducer, and a third conductive element. The third conductive element is configured to be at a potential different to the potential of the second conductive element. The third conductive element is provided in a fringing field region of the first capacitor.

公开(公告)号：US20190300361A1

公开(公告)日：2019-10-03

申请号：US15938524

申请日：2018-03-28

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Richard Ian LAMING

IPC: B81B3/00 ,  H04R19/04 ,  H04R19/00

Abstract: The application relates to a MEMS transducer comprising first and second conductive elements which defines a capacitor of the transducer, and a third conductive element. The third conductive element is configured to be at a potential substantially the same as that of the second conductive element, and is provided in a plane that overlies the plane of the second conductive element.

公开(公告)号：US20180002168A1

公开(公告)日：2018-01-04

申请号：US15543492

申请日：2016-01-25

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Scott Lyall CARGILL ,  Colin Robert JENKINS ,  Euan James BOYD ,  Richard Ian LAMING

IPC: B81C1/00 ,  H04R19/00 ,  H04R19/04

CPC classification number: B81C1/00666 ,  B81B3/0021 ,  B81B3/0072 ,  B81B2201/0257 ,  B81B2203/0127 ,  B81C1/00182 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/15151 ,  H04R19/005 ,  H04R19/04 ,  H01L2924/00014

Abstract: The application describes MEMS transducer having a flexible membrane and which seeks to alleviate and/or redistribute stresses within the membrane layer. A membrane having a first/active region and a second/inactive region is described.