Gap tuning for surface micromachined structures in an epitaxial reactor
    23.
    发明公开
    Gap tuning for surface micromachined structures in an epitaxial reactor 审中-公开
    AbstandsabstimmungfürMikrostrukturenwährenddes epitaktischen Wachsens

    公开(公告)号:EP1435336A2

    公开(公告)日:2004-07-07

    申请号:EP03023819.0

    申请日:2003-10-20

    Abstract: A method for adjusting with high precision the width of gaps between micromachined structures or devices in an epitaxial reactor environment. Providing a partially formed micromechanical device, comprising a substrate layer, a sacrificial layer including silicon dioxide deposited or grown on the substrate and etched to create desired holes and/or trenches through to the substrate layer, and a function layer deposited on the sacrificial layer and the exposed portions of the substrate layer and then etched to define micromechanical structures or devices therein. The etching process exposes the sacrificial layer underlying the removed function layer material. Cleaning residues from the surface of the device, then epitaxially depositing a layer of gap narrowing material selectively on the surfaces of the device. The selection of deposition surfaces determined by choice of materials and the temperature and pressure of the epitaxy carrier gas. The gap narrowing epitaxial deposition continues until a desired gap width is achieved, as determined by, for example, an optical detection arrangement. Following the gap narrowing step, the micromachined structures or devices may be released from their respective underlying sacrificial layer.

    Abstract translation: 一种用于在外延反应器环境中高精度调整微加工结构或器件之间的间隙的宽度的方法。 提供部分形成的微机械装置,其包括衬底层,牺牲层,包括沉积或生长在衬底上并被蚀刻以形成通向衬底层的所需孔和/或沟槽的二氧化硅;以及沉积在牺牲层上的功能层, 衬底层的暴露部分,然后蚀刻以在其中限定微机械结构或器件。 蚀刻工艺使除去的功能层材料下方的牺牲层露出。 从装置的表面清洁残留物,然后在装置的表面上选择性地外延地沉积间隙变窄材料层。 通过选择材料和外延载气的温度和压力来确定沉积表面的选择。 缩小外延沉积的间隙持续到通过例如光学检测装置确定的达到期望的间隙宽度为止。 在间隙变窄步骤之后,微加工结构或器件可以从它们各自的底层牺牲层释放。

    VERFAHREN ZUM ANISOTROPEN PLASMAÄTZEN VERSCHIEDENER SUBSTRATE
    24.
    发明公开
    VERFAHREN ZUM ANISOTROPEN PLASMAÄTZEN VERSCHIEDENER SUBSTRATE 失效
    - 各向异性等离子的方法不同的衬底

    公开(公告)号:EP0865664A1

    公开(公告)日:1998-09-23

    申请号:EP97911131.0

    申请日:1997-10-06

    Abstract: The invention concerns a process for producing etched structures in substrates by means of anisotropic plasma etching. An isotropic etching operation and a side wall passivation are carried out in separate and alternating operations. The substrate (2) is a polymer, a metal, or a multi-component system and portions (8) of the side wall passivation layer (6) applied during the side wall passivation are transferred to the exposed lateral surfaces (7') of the side wall (7) during each subsequent etching operations as a result of which the entire process becomes anisotropic.

    FLUID PATHS IN ETCHABLE MATERIALS
    29.
    发明公开
    FLUID PATHS IN ETCHABLE MATERIALS 审中-公开
    液体途径与刻蚀材料

    公开(公告)号:EP2091648A2

    公开(公告)日:2009-08-26

    申请号:EP07864582.7

    申请日:2007-11-19

    Applicant: Bioscale, Inc.

    Abstract: The invention relates to fluid paths in etchable materials. Fluid paths are formed by forming a cavity through a substrate material with a first dry removal process to produce a first surface of the cavity. The first surface of the cavity is associated with a first roughness. The first surface of the cavity is etched with a second wet removal process to reduce the first roughness and produce a second roughness associated with the first surface of the cavity. A coating is applied to the first surface of the cavity to produce a second surface to improve wettability of the first or second surface of the cavity, reduce in size or number gas nucleation sites in the first or second surface of the cavity, reduce the amount of debris associated with the first roughness carried by the fluid flow, and/or improve hydrophilicity of the first or second surface.

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