Highly efficient gallium nitride based light emitting diodes via surface roughening
    91.
    发明授权
    Highly efficient gallium nitride based light emitting diodes via surface roughening 有权
    通过表面粗糙化的高效氮化镓基发光二极管

    公开(公告)号:US08766296B2

    公开(公告)日:2014-07-01

    申请号:US12576122

    申请日:2009-10-08

    Abstract: A gallium nitride (GaN) based light emitting diode (LED), wherein light is extracted through a nitrogen face (N-face) of the LED and a surface of the N-face is roughened into one or more hexagonal shaped cones. The roughened surface reduces light reflections occurring repeatedly inside the LED, and thus extracts more light out of the LED. The surface of the N-face is roughened by an anisotropic etching, which may comprise a dry etching or a photo-enhanced chemical (PEC) etching.

    Abstract translation: 一种基于氮化镓(GaN)的发光二极管(LED),其中通过LED的氮面(N面)提取光,并且将N面的表面粗糙化成一个或多个六边形锥体。 粗糙表面减少LED内部重复发生的光反射,从而从LED中提取更多的光。 通过各向异性蚀刻使N面的表面变粗糙,其可以包括干蚀刻或光增强化学(PEC)蚀刻。

    Photodetection device
    93.
    发明授权
    Photodetection device 失效
    光检测装置

    公开(公告)号:US08610133B2

    公开(公告)日:2013-12-17

    申请号:US13274289

    申请日:2011-10-14

    CPC classification number: G02B5/208 G01J1/1626 G01J1/429 G02B5/285

    Abstract: Two light receiving elements are formed on a support substrate. A first light receiving element is formed of a p-type layer, an n-type layer, a light absorption semiconductor layer, an anode electrode, a cathode electrode, a protection film, etc. A second light receiving element is formed of a p-type layer, an n-type layer, a transmissive film, an anode electrode, a cathode electrode, a protection film, etc. The light absorption semiconductor layer absorbs light in a wavelength range λ and disposed closer to the light receiving surface than is the pn junction region. The transmissive film has no light absorption range and disposed closer to the light receiving surface than is the pn junction region. The amount of light in the wavelength range λ is measured through computation using a detection signal from the first light receiving element and a detection signal from the second light receiving element.

    Abstract translation: 在支撑基板上形成两个光接收元件。 第一光接收元件由p型层,n型层,光吸收半导体层,阳极电极,阴极电极,保护膜等形成。第二光接收元件由p 型层,n型层,透射膜,阳极电极,阴极电极,保护膜等。光吸收半导体层吸收波长λ范围内的光,并且设置得比光接收表面更靠近光接收表面 pn结区域。 透射膜没有光吸收范围,并且比pn结区域更靠近光接收表面。 通过使用来自第一光接收元件的检测信号和来自第二光接收元件的检测信号的计算来测量波长范围λ的光量。

    Semiconductor device
    94.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08497557B2

    公开(公告)日:2013-07-30

    申请号:US12754036

    申请日:2010-04-05

    Abstract: A semiconductor device includes a first semiconductor substrate, a second semiconductor substrate, and a sealing member. The first semiconductor substrate has a surface and includes a sensing portion on the surface side. The sensing portion has a movable portion. The first semiconductor substrate and the second semiconductor substrate are bonded together to form a stacked substrate. The stacked substrate defines a hermetically sealed space for accommodating the sensing portion between the first and second semiconductor substrates. The stacked substrate further defines a recess extending between the first semiconductor substrate and the second semiconductor substrate to penetrate an interface between the first semiconductor substrate and the second semiconductor substrate. The sealing member is located in the recess.

    Abstract translation: 半导体器件包括第一半导体衬底,第二半导体衬底和密封构件。 第一半导体衬底具有表面并且在表面侧包括感测部分。 感测部分具有可移动部分。 将第一半导体衬底和第二半导体衬底接合在一起以形成堆叠衬底。 堆叠的衬底限定用于在第一和第二半导体衬底之间容纳感测部分的气密密封空间。 堆叠的衬底还限定了在第一半导体衬底和第二半导体衬底之间延伸的凹部,以穿透第一半导体衬底和第二半导体衬底之间的界面。 密封件位于凹槽中。

    Angular velocity sensor having drive member coupling beam spaced apart from drive members
    96.
    发明授权
    Angular velocity sensor having drive member coupling beam spaced apart from drive members 有权
    角速度传感器具有与驱动构件间隔开的驱动构件联接梁

    公开(公告)号:US08234920B2

    公开(公告)日:2012-08-07

    申请号:US12585052

    申请日:2009-09-01

    CPC classification number: G01C19/5719

    Abstract: An angular velocity sensor includes first and second oscillators and a coupling beam. The coupling beam couples the first and second oscillators together in such a manner that the first and second oscillators vibrate relative to each other in a predetermined direction. The coupling beam includes a first post portion joined to a surface of the first oscillator, a second post portion joined to a surface of the second oscillator, and a spring portion that joins the first post portion to the second post portion. The spring portion is spaced from the first and second oscillators and has elasticity in the predetermined direction.

    Abstract translation: 角速度传感器包括第一和第二振荡器和耦合梁。 耦合光束以第一和第二振荡器在预定方向上相对于彼此振动的方式将第一和第二振荡器耦合在一起。 耦合梁包括接合到第一振荡器的表面的第一柱部分,与第二振荡器的表面接合的第二柱部分,以及将第一柱部分连接到第二柱部分的弹簧部分。 弹簧部分与第一和第二振荡器间隔开,并且在预定方向上具有弹性。

    Oscillating angular speed sensor
    97.
    发明授权
    Oscillating angular speed sensor 失效
    振荡角速度传感器

    公开(公告)号:US08210040B2

    公开(公告)日:2012-07-03

    申请号:US12722707

    申请日:2010-03-12

    CPC classification number: G01C19/5719

    Abstract: An oscillating angular speed sensor includes a detector, a driving portion, and a separating portion. When an angular speed is generated while the detector is driven to oscillate by the driving portion, Coriolis force is applied to the detector. Therefore, the angular speed is detected based on a capacitance variation in accordance with a variation of an interval between a movable electrode and a fixed electrode of the detector. The separating portion is distanced from the detector and the driving portion, and is configured to separate a first space accommodating the detector and a second space accommodating the driving portion.

    Abstract translation: 振动角速度传感器包括检测器,驱动部分和分离部分。 当检测器被驱动部分驱动振荡时产生角速度时,将科里奥利力施加到检测器。 因此,根据检测器的可动电极和固定电极之间的间隔的变化,基于电容变化来检测角速度。 分离部分远离检测器和驱动部分,并且被配置为分离容纳检测器的第一空间和容纳驱动部分的第二空间。

    Ultrasonic sensor
    99.
    发明授权
    Ultrasonic sensor 有权
    超声波传感器

    公开(公告)号:US08098000B2

    公开(公告)日:2012-01-17

    申请号:US12230039

    申请日:2008-08-21

    CPC classification number: G01S7/521

    Abstract: An ultrasonic sensor for detecting an object includes: a piezoelectric element having a piezoelectric body and first and second electrodes for sandwiching the piezoelectric body; an acoustic matching element having a reception surface, which receives an ultrasonic wave reflected by the object; and a circuit electrically coupled with the piezoelectric element via a wire. The piezoelectric element is embedded in the acoustic matching element so that the acoustic matching element covers at least the first electrode, a part of a sidewall of the piezoelectric element and a part of the wire between the circuit and the piezoelectric element, and the sidewall of the piezoelectric element is adjacent to the first electrode.

    Abstract translation: 一种用于检测物体的超声波传感器包括:具有压电体的压电元件和用于夹持压电体的第一和第二电极; 具有接收表面的声匹配元件,其接收由所述物体反射的超声波; 以及经由导线与压电元件电耦合的电路。 压电元件被嵌入在声匹配元件中,使得声匹配元件至少覆盖第一电极,压电元件的侧壁的一部分和电路与压电元件之间的线的一部分,以及侧壁 压电元件与第一电极相邻。

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