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    • 3. 发明授权
    • Dry etch release of MEMS structures
    • MEMS结构的干蚀刻释放
    • US06666979B2
    • 2003-12-23
    • US10046593
    • 2001-10-29
    • Jeffrey D. ChinnVidyut GopalSofiane SoukaneToi Yue Becky Leung
    • Jeffrey D. ChinnVidyut GopalSofiane SoukaneToi Yue Becky Leung
    • H01L2100
    • B81B3/0005B81B3/0008B81B2201/033B81C2201/016B81C2201/112
    • The present invention pertains to a method of fabricating a surface within a MEM which is free moving in response to stimulation. The free moving surface is fabricated in a series of steps which includes a release method, where release is accomplished by a plasmaless etching of a sacrificial layer material. An etch step is followed by a cleaning step in which by-products from the etch step are removed along with other contaminants which may lead to stiction. There are a series of etch and then clean steps so that a number of “cycles” of these steps are performed. Between each etch step and each clean step, the process chamber pressure is typically abruptly lowered, to create turbulence and aid in the removal of particulates which are evacuated from the structure surface and the process chamber by the pumping action during lowering of the chamber pressure. The final etch/clean cycle may be followed by a surface passivation step in which cleaned surfaces are passivated and/or coated.
    • 本发明涉及制造响应于刺激而自由移动的MEM内的表面的方法。 自由移动表面是在一系列步骤中制造的,其包括释放方法,其中通过牺牲层材料的无质子蚀刻来实现释放。 蚀刻步骤之后是清洁步骤,其中来自蚀刻步骤的副产物与可能导致静电的其它污染物一起被去除。 存在一系列蚀刻然后清洁步骤,使得执行这些步骤的许多“循环”。 在每个蚀刻步骤和每个清洁步骤之间,处理室压力通常突然降低,以产生湍流,并且有助于通过在降低腔室压力期间的泵送作用从结构表面和处理室排出的微粒去除。 最终的蚀刻/清洁循环之后可以是表面钝化步骤,其中清洁的表面被钝化和/或涂覆。
    • 6. 发明申请
    • MASK ETCH PROCESS
    • 掩蔽过程
    • US20080179282A1
    • 2008-07-31
    • US11867740
    • 2007-10-05
    • Madhavi R. ChandrachoodAmitabh SabharwalToi Yue Becky LeungMichael Grimbergen
    • Madhavi R. ChandrachoodAmitabh SabharwalToi Yue Becky LeungMichael Grimbergen
    • B44C1/22
    • G03F1/80
    • Method and apparatus for etching a metal layer disposed on a substrate, such as a photolithographic reticle, are provided. In one embodiment, a method is provided for processing a substrate including positioning a substrate having a metal photomask layer disposed on a optically transparent material in a processing chamber, introducing a processing gas processing gas comprising an oxygen containing gas, a chlorine containing gas, at least one of trifluoromethane (CHF3), sulfur hexafluoride (SF6), hexafluoroethane (C2F6) or ammonia (NH3) and optionally a chlorine-free halogen containing gas and/or an insert gas, into the processing chamber, generating a plasma of the processing gas in the processing chamber, and etching exposed portions of the metal layer disposed on the substrate.
    • 提供了用于蚀刻设置在诸如光刻掩模之类的基板上的金属层的方法和设备。 在一个实施例中,提供了一种用于处理衬底的方法,包括定位具有设置在处理室中的光学透明材料上的金属光掩模层的衬底,将包含含氧气体,含氯气体的处理气体处理气体引入 三氟甲烷(CHF 3 3),六氟化硫(SF 6 S 6),六氟乙烷(C 2 F 6 N 3) )或氨(NH 3)和任选的无氯卤素气体和/或插入气体加入到处理室中,在处理室中产生处理气体的等离子体,并暴露 设置在基板上的金属层的部分。