Micro electro-mechanical system (MEMS) microphone device with multi-sensitivity outputs and circuit with the MEMS device
    32.
    发明授权
    Micro electro-mechanical system (MEMS) microphone device with multi-sensitivity outputs and circuit with the MEMS device 有权
    微机电系统(MEMS)麦克风设备具有多路灵敏度输出和电路与MEMS器件

    公开(公告)号:US08934649B1

    公开(公告)日:2015-01-13

    申请号:US14013049

    申请日:2013-08-29

    CPC classification number: H04R19/04 H04R19/005 H04R31/006

    Abstract: A MEMS device includes substrate having a cavity. A dielectric layer is disposed on a second side of substrate at periphery of the cavity. A backplate structure is formed with the dielectric layer on a first side of the substrate and exposed by the cavity. The backplate structure includes at least a first backplate and a second backplate. The first backplate and the second backplate are electric disconnected and have venting holes to connect the cavity and the chamber. A diaphragm is disposed above the backplate structure by a distance, so as to form a chamber between the backplate structure and the diaphragm. A periphery of the diaphragm is embedded in the dielectric layer. The diaphragm serves as a common electrode. The first backplate and the second backplate respectively serve as a first electrode unit and a second electrode unit in conjugation with the diaphragm to form separate two capacitors.

    Abstract translation: MEMS器件包括具有空腔的衬底。 电介质层设置在空腔周边的衬底的第二面上。 背板结构形成有介电层在基板的第一面上并被空腔暴露。 背板结构至少包括第一背板和第二背板。 第一个背板和第二个背板是电气断开的,并具有连接空腔和腔室的排气孔。 隔膜设置在背板结构上方一段距离,以便在背板结构和隔膜之间形成一个室。 隔膜的周边嵌入在电介质层中。 隔膜用作公共电极。 第一背板和第二背板分别用作与隔膜共轭的第一电极单元和第二电极单元,以形成分开的两个电容器。

    TEST APPARATUS AND TEST METHOD FOR ACOUSTIC MICRO-DEVICE
    33.
    发明申请
    TEST APPARATUS AND TEST METHOD FOR ACOUSTIC MICRO-DEVICE 审中-公开
    用于声学微型装置的测试装置和测试方法

    公开(公告)号:US20140318213A1

    公开(公告)日:2014-10-30

    申请号:US13929810

    申请日:2013-06-28

    CPC classification number: G01N29/30 G01N29/14 G01N29/4436 G01N2291/0231

    Abstract: An acoustic micro-device testing apparatus including an acoustic device, at least one device under test (DUT), and a bearing plate is disclosed. The acoustic device provides a testing acoustic source to a first side of the DUT through the main channel and to a second side of the DUT through the side channel. The bearing plate has a first surface and a second surface. The first surface has a chamber sunken into the bearing plate. The second surface has a bearing space sunken into the bearing plate and bearing the DUT. The bearing plate has a main channel connecting the chamber and the DUT and at least one side channel connecting the chamber and the bearing space directly or through the main channel. A cover unit covers the bearing plate so that the bearing space and the chamber form a confined space. The DUT is in the confined space.

    Abstract translation: 公开了一种包括声学装置,至少一个被测器件(DUT)和支承板的声学微器件测试装置。 声学装置通过主通道向DUT的第一侧提供测试声源,并通过侧通道向DUT的第二侧提供测试声源。 支承板具有第一表面和第二表面。 第一个表面有一个凹入承载板的腔室。 第二个表面有一个轴承空间沉入轴承板并承载DUT。 轴承板具有连接腔室和DUT的主通道以及直接或通过主通道连接腔室和轴承空间的至少一个侧通道。 盖单元覆盖轴承板,使得轴承空间和腔室形成密闭空间。 DUT位于密闭空间。

    METHOD FOR FABRICATING MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) DEVICE
    34.
    发明申请
    METHOD FOR FABRICATING MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) DEVICE 有权
    用于制造微机电系统(MEMS)器件的方法

    公开(公告)号:US20130260504A1

    公开(公告)日:2013-10-03

    申请号:US13906340

    申请日:2013-05-31

    Abstract: Method is to fabricate a MEMS device with a substrate. The substrate has through holes in the substrate within a diaphragm region and optionally an indent space from the second surface at the diaphragm region. A first dielectric structural layer is then disposed over the substrate from the first surface, wherein the first dielectric structural layer has a plurality of openings corresponding to the through holes, wherein each of the through holes remains exposed by the first dielectric structural layer. A second dielectric structural layer with a chamber is disposed over the first dielectric structural layer, wherein the chamber exposes the openings of the first dielectric structural layer and the through holes of the substrate to connect to the indent space. A MEMS diaphragm is embedded in the second dielectric structural layer above the chamber, wherein an air gap is formed between the substrate and the MEMS diaphragm.

    Abstract translation: 方法是制造具有衬底的MEMS器件。 衬底在膜片区域内的衬底中具有通孔,并且可选地在隔膜区域处具有与第二表面相邻的凹陷空间。 然后,第一介电结构层从第一表面设置在衬底上,其中第一介电结构层具有对应于通孔的多个开口,其中每个通孔保持被第一介电结构层暴露。 具有腔室的第二电介质结构层设置在第一介电结构层上,其中腔室暴露第一介电结构层的开口和衬底的通孔以连接到凹陷空间。 MEMS隔膜嵌入在腔室上方的第二电介质结构层中,其中在衬底和MEMS隔膜之间形成气隙。

Patent Agency Ranking