ACOUSTIC RESONATOR
    1.
    发明申请

    公开(公告)号:US20230006635A1

    公开(公告)日:2023-01-05

    申请号:US17364214

    申请日:2021-06-30

    Abstract: An integrated circuit (IC) resonator module for an IC package includes an acoustic resonator having a surface and a Bragg reflector adhered to the surface of the acoustic resonator. The Bragg reflector includes low impedance layers formed of a first material with a first acoustic impedance and a high impedance layer formed of a second material with a second acoustic impedance. The second acoustic impedance is greater than the first acoustic impedance. The Bragg reflector further includes a Bragg grating layer formed of randomly or periodically spaced patches of the second material separated by vias filled with the first material.

    Piezoelectric Optical MEMS Device With Embedded Moisture Layers
    2.
    发明申请
    Piezoelectric Optical MEMS Device With Embedded Moisture Layers 有权
    具有嵌入式水分层的压电光学MEMS器件

    公开(公告)号:US20150378064A1

    公开(公告)日:2015-12-31

    申请号:US14553812

    申请日:2014-11-25

    CPC classification number: B81B7/0029 G02B1/14 G02B26/0875

    Abstract: A piezoelectric optical micro-electro-mechanical systems (POMEMS) device includes a glass layer having a bottom surface and a top surface. The device may also include an upper moisture barrier layer having a top surface and a bottom surface in which the bottom surface of the top moisture barrier layer is substantially coextensive with and interfaces with the top surface of the glass layer. A piezo stack may be attached above the upper moisture barrier layer. The device may also include a lower moisture barrier layer having a bottom surface and a top surface. The top surface of the lower moisture barrier layer is substantially coextensive with and interfaces with the bottom surface of the glass layer. A semiconductor substrate may be attached below the bottom moisture barrier layer.

    Abstract translation: 压电光电微机电系统(POMEMS)装置包括具有底表面和顶表面的玻璃层。 该装置还可以包括具有顶表面和底表面的上部防潮层,其中顶部防潮层的底表面基本上与玻璃层的顶表面共同延伸并与其接合。 压电叠层可以附着在上部防潮层上。 该装置还可以包括具有底表面和顶表面的下部防潮层。 下部防潮层的上表面与玻璃层的底面基本上共同延伸并与其接触。 半导体衬底可以附着在底部阻湿层的下方。

    BARRIER LAYERS FOR ANISOTROPIC MAGNETO-RESISTIVE SENSORS

    公开(公告)号:US20240102830A1

    公开(公告)日:2024-03-28

    申请号:US18147396

    申请日:2022-12-28

    CPC classification number: G01D5/16 G01D5/18 G01R33/096

    Abstract: Barrier layers for anisotropic magneto-resistive (AMR) sensors integrated with semiconductor circuits and methods of making the same are described. The AMR sensors includes a NiFe alloy layer disposed over a dielectric layer. The NiFe alloy layer is in contact with a conductive via coupled to the semiconductor circuits in a substrate underneath the AMR sensor. A barrier layer is formed on the dielectric layer to prevent Ni or Fe atoms from diffusing through the dielectric layer toward the semiconductor circuits. Further, a sacrificial layer is used to facilitate forming a planarized surface with ends of the conductive vias exposed without compromising the barrier layer.

    Integrated photodetector
    4.
    发明授权

    公开(公告)号:US10186623B2

    公开(公告)日:2019-01-22

    申请号:US15017057

    申请日:2016-02-05

    Abstract: An integrated circuit that includes a substrate, a photodiode, and a Fresnel structure. The photodiode is formed on the substrate, and it has a p-n junction. The Fresnel structure is formed above the photodiode, and it defines a focal zone that is positioned within a proximity of the p-n junction. In one aspect, the Fresnel structure may include a trench pattern that functions as a diffraction means for redirecting and concentrating incident photons to the focal zone. In another aspect, the Fresnel structure may include a wiring pattern that functions as a diffraction means for redirecting and concentrating incident photons to the focal zone. In yet another aspect, the Fresnel structure may include a transparent dielectric pattern that functions as a refractive means for redirecting and concentrating incident photons to the focal zone.

    PIEZOELECTRIC OPTICAL MEMS DEVICE WITH EMBEDDED MOISTURE LAYERS

    公开(公告)号:US20180141804A1

    公开(公告)日:2018-05-24

    申请号:US15802706

    申请日:2017-11-03

    CPC classification number: B81B7/0029 G02B1/14 G02B26/0875

    Abstract: A piezoelectric optical micro-electro-mechanical systems (POMEMS) device includes a glass layer having a first surface and an opposite second surface. The device may also include a first moisture barrier layer having a first surface and an opposite second surface in which the second surface of the first moisture barrier layer is substantially coextensive with and interfaces with the first surface of the glass layer. A piezo stack may be attached on the first side of the first moisture barrier layer. The device may also include a second moisture barrier layer having a first surface and an opposite second surface. The first surface of the second moisture barrier is substantially coextensive with and interfaces with the second surface of the glass layer. A semiconductor substrate may be attached on the second side of the second moisture barrier layer.

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