INERTIAL SENSOR AND FORMATION METHOD THEREFOR

    公开(公告)号:US20240027488A1

    公开(公告)日:2024-01-25

    申请号:US18255501

    申请日:2021-10-21

    Abstract: In a forming method of an inertial sensor, a trench is formed in a conducting material layer, so that a formed movable comb tooth structure can be spaced from the conducting material layer. A thin film layer is further arranged at a bottom of the trench. The thin film layer can be used not only for realizing etching blocking, but also for fixing comb teeth of the movable comb tooth structure while executing an etching process for forming the movable comb tooth structure, thereby avoiding damage to side walls of the comb teeth due to torsion of the comb teeth. In addition, a thickness of the thin film layer can be made small, and correspondingly, the thin film layer can be removed by a small etching amount, without causing a large amount of erosion to other film layers, which is conducive to guaranteeing stability of modules in a device.

    OPEN CAVITY PACKAGE USING CHIP-EMBEDDING TECHNOLOGY
    67.
    发明申请
    OPEN CAVITY PACKAGE USING CHIP-EMBEDDING TECHNOLOGY 有权
    使用芯片嵌入技术的开放封装

    公开(公告)号:US20170015548A1

    公开(公告)日:2017-01-19

    申请号:US14963362

    申请日:2015-12-09

    Abstract: A method for fabricating packaged semiconductor devices (100) with an open cavity (110a) in panel format; placing (process 201) on an adhesive carrier tape a panel-sized grid of metallic pieces having a flat pad (230) and symmetrically placed vertical pillars (231); attaching (process 202) semiconductor chips (101) with sensor systems face-down onto the tape; laminating (process 203) and thinning (process 204) low CTE insulating material (234) to fill gaps between chips and grid; turning over (process 205) assembly to remove tape; plasma-cleaning assembly front side, sputtering and patterning (process 206) uniform metal layer across assembly and optionally plating (process 209) metal layer to form rerouting traces and extended contact pads for assembly; laminating (process 212) insulating stiffener across panel; opening (process 213) cavities in stiffener to access the sensor system; and singulating (process 214) packaged devices by cutting metallic pieces.

    Abstract translation: 一种以面板格式制造具有开口腔(110a)的封装半导体器件(100)的方法; 将具有平垫(230)和对称放置的垂直柱(231)的金属片的面板尺寸网格放置(处理201)在粘合剂载带上。 将具有传感器系统的半导体芯片(工艺202)面朝下地附接到带上; 层压(工艺203)和减薄(工艺204)低CTE绝缘材料(234)以填充芯片和网格之间的间隙; 翻转(过程205)组装以去除胶带; 等离子体清洁组件正面,溅射和图案化(工艺206)跨组合均匀的金属层和任选的电镀(工艺209)金属层以形成重新布线迹线和扩展的接触垫用于组装; 层压(工艺212)跨板的绝缘加强件; 在加强件中打开(过程213)空腔以接近传感器系统; 并通过切割金属片来分割(处理214)包装的装置。

    Structure and Method for Integrated Microphone
    68.
    发明申请
    Structure and Method for Integrated Microphone 有权
    集成麦克风的结构和方法

    公开(公告)号:US20160157038A1

    公开(公告)日:2016-06-02

    申请号:US15018625

    申请日:2016-02-08

    Abstract: The present disclosure provides one embodiment of an integrated microphone structure. The integrated microphone structure includes a first silicon substrate patterned as a first plate. A silicon oxide layer formed on one side of the first silicon substrate. A second silicon substrate bonded to the first substrate through the silicon oxide layer such that the silicon oxide layer is sandwiched between the first and second silicon substrates. A diaphragm secured on the silicon oxide layer and disposed between the first and second silicon substrates such that the first plate and the diaphragm are configured to form a capacitive microphone.

    Abstract translation: 本公开提供了集成麦克风结构的一个实施例。 集成麦克风结构包括图案化为第一板的第一硅衬底。 形成在第一硅衬底的一侧上的氧化硅层。 第二硅衬底通过氧化硅层与第一衬底结合,使得氧化硅层夹在第一和第二硅衬底之间。 一个膜片,其固定在氧化硅层上并且设置在第一和第二硅衬底之间,使得第一板和隔膜被配置成形成电容式麦克风。

    Method for manufacturing micromechanical components
    70.
    发明授权
    Method for manufacturing micromechanical components 有权
    微机械部件制造方法

    公开(公告)号:US08236694B2

    公开(公告)日:2012-08-07

    申请号:US12884823

    申请日:2010-09-17

    CPC classification number: B81C1/00611 B81C2201/0125

    Abstract: The present invention relates to a method for manufacturing an acceleration sensor. In the method, thin SOI-wafer structures are used, in which grooves are etched, the walls of which are oxidized. A thick layer of electrode material, covering all other material, is grown on top of the structures, after which the surface is ground and polished chemo-mechanically, thin release holes are etched in the structure, structural patterns are formed, and finally etching using a hydrofluoric acid solution is performed to release the structures intended to move and to open a capacitive gap.

    Abstract translation: 本发明涉及加速度传感器的制造方法。 在该方法中,使用薄SOI晶片结构,其中蚀刻凹槽,其壁被氧化。 覆盖所有其他材料的厚电极材料层生长在结构的顶部,然后将表面研磨并化学机械地抛光,在结构中蚀刻薄的释放孔,形成结构图案,最后使用 执行氢氟酸溶液以释放旨在移动并打开电容间隙的结构。

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