Rough anti-stiction layer for MEMS device

    公开(公告)号:US10759654B2

    公开(公告)日:2020-09-01

    申请号:US16229902

    申请日:2018-12-21

    Abstract: The present disclosure relates to a method for manufacturing a microelectromechanical systems (MEMS) package. The method comprises providing a CMOS IC including CMOS devices arranged within a CMOS substrate. The method further comprises forming and patterning a metal layer over the CMOS substrate to form an anti-stiction layer and a fixed electrode plate and forming a rough top surface for the anti-stiction layer. The method further comprises providing a MEMS IC comprising a moveable mass arranged within a recess of a MEMS substrate and bonding the CMOS IC to the MEMS IC to enclose a cavity between the moveable mass and the fixed electrode plate and the anti-stiction layer.

    Rough anti-stiction layer for MEMS device

    公开(公告)号:US10173886B2

    公开(公告)日:2019-01-08

    申请号:US15885016

    申请日:2018-01-31

    Abstract: The present disclosure relates to a MEMS package with a rough metal anti-stiction layer, to improve stiction characteristics, and an associated method of formation. In some embodiments, the MEMS package includes a MEMS IC bonded to a CMOS IC. The CMOS IC has a CMOS substrate and an interconnect structure disposed over the CMOS substrate. The interconnect structure includes a plurality of metal layers disposed within a plurality of dielectric layers. The MEMS IC is bonded to the CMOS IC, enclosing a cavity between the MEMS IC and the CMOS IC and a moveable mass arranged in the cavity. The MEMS package further includes an anti-stiction layer disposed under the moveable mass. The anti-stiction layer is made of metal and has a rough top surface.

    ROUGH ANTI-STICTION LAYER FOR MEMS DEVICE

    公开(公告)号:US20170210612A1

    公开(公告)日:2017-07-27

    申请号:US15006301

    申请日:2016-01-26

    Abstract: The present disclosure relates to a MEMS package with a rough metal anti-stiction layer, to improve stiction characteristics, and an associated method of formation. In some embodiments, the MEMS package includes a MEMS IC bonded to a CMOS IC. The CMOS IC has a CMOS substrate and an interconnect structure disposed over the CMOS substrate. The interconnect structure includes a plurality of metal layers disposed within a plurality of dielectric layers. The MEMS IC is bonded to an upper surface of the interconnect structure and, in cooperation with the CMOS IC, enclosing a cavity between the MEMS IC and the CMOS IC. The MEMS IC has a moveable mass arranged in the cavity. The MEMS package further includes an anti-stiction layer disposed on the upper surface of the interconnect structure under the moveable mass. The anti-stiction layer is made of metal and has a rough top surface.

    MEMS structure, cap substrate and method of fabricating the same
    9.
    发明授权
    MEMS structure, cap substrate and method of fabricating the same 有权
    MEMS结构,盖基板及其制造方法

    公开(公告)号:US09481567B2

    公开(公告)日:2016-11-01

    申请号:US14302982

    申请日:2014-06-12

    Abstract: A micro electro mechanical system (MEMS) structure is provided, which includes a first substrate, a second substrate, a MEMS device and a hydrophobic semiconductor layer. The first substrate has a first portion. The second substrate is substantially parallel to the first substrate and has a second portion substantially aligned with the first portion. The MEMS device is between the first portion and the second portion. The hydrophobic semiconductor layer is made of germanium (Ge), silicon (Si) or a combination thereof on the first portion, the second portion or the first portion and the second portion and faces toward the MEMS device. A cap substrate for a MEMS device and a method of fabricating the same are also provided.

    Abstract translation: 提供了一种微电子机械系统(MEMS)结构,其包括第一衬底,第二衬底,MEMS器件和疏水性半导体层。 第一基板具有第一部分。 第二基板基本上平行于第一基板并且具有与第一部分大致对准的第二部分。 MEMS器件在第一部分和第二部分之间。 疏水性半导体层由锗(Ge),硅(Si)或其组合构成在第一部分,第二部分或第一部分和第二部分上并面向MEMS器件。 还提供了用于MEMS器件的盖衬底及其制造方法。

    MEMS STRUCTURE, CAP SUBSTRATE AND METHOD OF FABRICATING THE SAME
    10.
    发明申请
    MEMS STRUCTURE, CAP SUBSTRATE AND METHOD OF FABRICATING THE SAME 有权
    MEMS结构,CAP基板及其制造方法

    公开(公告)号:US20150360938A1

    公开(公告)日:2015-12-17

    申请号:US14302982

    申请日:2014-06-12

    Abstract: A micro electro mechanical system (MEMS) structure is provided, which includes a first substrate, a second substrate, a MEMS device and a hydrophobic semiconductor layer. The first substrate has a first portion. The second substrate is substantially parallel to the first substrate and has a second portion substantially aligned with the first portion. The MEMS device is between the first portion and the second portion. The hydrophobic semiconductor layer is made of germanium (Ge), silicon (Si) or a combination thereof on the first portion, the second portion or the first portion and the second portion and faces toward the MEMS device. A cap substrate for a MEMS device and a method of fabricating the same are also provided.

    Abstract translation: 提供了一种微电子机械系统(MEMS)结构,其包括第一衬底,第二衬底,MEMS器件和疏水性半导体层。 第一基板具有第一部分。 第二基板基本上平行于第一基板并且具有与第一部分大致对准的第二部分。 MEMS器件在第一部分和第二部分之间。 疏水性半导体层由锗(Ge),硅(Si)或其组合构成在第一部分,第二部分或第一部分和第二部分上并面向MEMS器件。 还提供了用于MEMS器件的盖衬底及其制造方法。

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