Pressure sensor device and method of sensing pressure

    公开(公告)号:US11169039B2

    公开(公告)日:2021-11-09

    申请号:US16557213

    申请日:2019-08-30

    Abstract: A pressure sensor device comprises a device package (110) arranged to define a cavity (116) having an opening for fluid communication with an internal volume thereof. The cavity (116) comprises a side wall (114, 115). An elongate pressure sensor element (100) is provided and has a proximal end (120) and a distal end (122). The side wall (114, 115) is arranged to hold fixedly the proximal end (120) of the pressure sensor element (100) therein so that the pressure sensor element (100) is cantilever-suspended from the side wall (114, 115) within the cavity (116).

    Semiconductor stress sensor
    2.
    发明授权

    公开(公告)号:US11515467B2

    公开(公告)日:2022-11-29

    申请号:US17111871

    申请日:2020-12-04

    Abstract: A piezo-resistor sensor includes a diffusion of a first conductivity type in a well of an opposite second type, contacts with islands in the diffusion, interconnects with the contacts, and a shield covers the diffusion between the contacts and extends over side walls of the diffusion between the contacts. Each interconnect covers the diffusion at the corresponding contact and extends over edges of the diffusion, and each island is at a side covered by its interconnect. A guard ring of the second type is around the diffusion. The shield covers the well between the diffusion and the ring and the edge of the ring facing the diffusion. If a gap between the shield and the interconnect is present, the ring bridges this gap, and/or the edges of the diffusion are completely covered by the combination of the shield and the interconnects.

    Sensor device and method of manufacture

    公开(公告)号:US11600559B2

    公开(公告)日:2023-03-07

    申请号:US16557224

    申请日:2019-08-30

    Abstract: A method of manufacturing a sensor device (100) comprises providing (200) a package (102) having a first die-receiving subframe volume (104) separated from a second die-receiving subframe volume (106) by a partition wall (116). An elongate sensor element (120) is disposed (202) within the package (102) so as to bridge the first and second subframe volumes (104, 106) and to overlie the partition wall (116). The elongate sensor element (120) resides substantially in the first subframe volume (104) and partially in the second subframe volume (106). The elongate sensor element (120) is electrically connected within the second subframe volume (106).

    Semiconductor pressure sensor for harsh media application

    公开(公告)号:US10308502B2

    公开(公告)日:2019-06-04

    申请号:US15445096

    申请日:2017-02-28

    Abstract: A semiconductor pressure sensor assembly for measuring a pressure of an exhaust gas which contains corrosive components, comprising: a first cavity, a pressure sensor comprising first bondpads for electrical interconnection, a CMOS chip comprising second bondpads for electrical interconnection with the pressure sensor, an interconnection module having electrically conductive paths connected via bonding wires to the pressure sensor and to the CMOS chip; the interconnection module being a substrate with corrosion-resistant metal tracks, wherein the CMOS chip and part of the interconnection module are encapsulated by a plastic package.

Patent Agency Ranking