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    COATED CAPACITIVE SENSOR
    7.
    发明公开
    COATED CAPACITIVE SENSOR 审中-公开
    涂覆的电容式传感器

    公开(公告)号：EP2739561A1

    公开(公告)日：2014-06-11

    申请号：EP12759289.7

    申请日：2012-08-03

    Applicant: Robert Bosch GmbH

    Inventor： FEYH, Ando ,  CLASSEN, Johannes

    IPC: B81B3/00

    CPC classification number: B81B3/0086 ,  B81B3/0008 ,  B81C2201/0169 ,  B81C2201/017 ,  B81C2201/0176

    Abstract: In one embodiment, a method of forming a MEMS device includes providing a substrate, forming a sacrificial layer above the substrate layer, forming a silicon based working portion on the sacrificial layer, releasing the silicon based working portion from the sacrificial layer such that the working portion includes at least one exposed outer surface, forming a first layer of silicide forming metal on the at least one exposed outer surface of the silicon based working portion, and forming a first silicide layer with the first layer of silicide forming metal.

    Method for forming silicon germanium layers at low temperatures for controlling stress gradient
    9.
    发明公开
    Method for forming silicon germanium layers at low temperatures for controlling stress gradient 审中-公开
    形成在低温下的硅 - 锗层的方法，以确定所述电压梯度

    公开(公告)号：EP1801067A3

    公开(公告)日：2012-05-09

    申请号：EP06026404.1

    申请日：2006-12-20

    Applicant: IMEC ,  American University Cairo

    Inventor： Sedky, Sherif ,  Witvrouw, An

    IPC: B81C1/00

    CPC classification number: B81C1/00666 ,  B81C2201/0169

    Abstract: The present invention provides a method for controlling the average stress and the strain gradient in structural silicon germanium layers as used in micromachined devices. The method comprises depositing a single silicon germanium layer on a substrate and annealing a predetermined part of the deposited silicon germanium layer, whereby the process parameters of the depositing step and/or the annealing step are selected such that a predetermined average stress and a predetermined strain gradient are obtained in the predetermined part of the silicon germanium layer. Preferably a plasma assisted deposition technique is used for depositing the silicon germanium layer, and a pulsed excimer laser is used for local annealing, with a limited thermal penetration depth. The present invention provides a method for forming structural silicon germanium layers for surface micromachined structures at temperatures substantially below 400°C, which offers for example the possibility of post-processing micromachined structures on top of a substrate comprising electronic circuitry such as CMOS circuitry, without affecting the functionality and reliability of the electronic circuitry. More in particular, the present invention provides a method for forming structural silicon germanium layers at temperatures not exceeding 210°C, which allows the integration of silicon germanium based micromachined structures on substrates such as polymer films.

    METHOD OF FORMING AN ELECTROMECHANICAL TRANSDUCER DEVICE
    10.
    发明公开
    METHOD OF FORMING AN ELECTROMECHANICAL TRANSDUCER DEVICE 有权
    法形成机电转换装置的

    公开(公告)号：EP2449670A2

    公开(公告)日：2012-05-09

    申请号：EP10757630.8

    申请日：2010-06-15

    Applicant: Freescale Semiconductor, Inc. ,  Commissariat à l'Énergie Atomique et aux Énergies Alternatives

    Inventor： PERRUCHOT, François ,  LIU, Lianjun ,  PACHECO, Sergio ,  DEFAY, Emmanuel ,  REY, Patrice

    IPC: H02N1/00

    CPC classification number: B81C1/00666 ,  B81B2203/0118 ,  B81C2201/0167 ,  B81C2201/0169

    Abstract: A method of forming an electromechanical transducer device (200) comprises forming (500) on a fixed structure (210) a movable structure (203) and an actuating structure of the electromechanical transducer device, wherein the movable structure (203) is arranged in operation of the electromechanical transducer device (200) to be movable in relation to the fixed structure in response to actuation of the actuating structure. The method further comprises providing (504) a stress trimming layer (216) on at least part of the movable structure (203), after providing the stress trimming layer (216), releasing (506) the movable structure (203) from the fixed structure (210) to provide a released electromechanical transducer device (200), and after releasing the movable structure (203), changing (508) stress in the stress trimming layer of the released electromechanical transducer device such that the movable structure (203) is deflected a predetermined amount relative to the fixed structure (210) when the electromechanical transducer device (200) is in an off state.

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