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    • 36. 发明授权
    • Method of making a MEMS element having perpendicular portion formed from substrate
    • 制造具有由衬底形成的垂直部分的MEMS元件的方法
    • US06583031B2
    • 2003-06-24
    • US09915217
    • 2001-07-25
    • Chuang-Chia Lin
    • Chuang-Chia Lin
    • H01L2130
    • G02B6/3518B81B3/004B81B2201/045B81B2203/058B81C2201/053G02B6/3514G02B6/3546G02B6/3566G02B6/357G02B6/3572G02B6/358
    • A microelectromechanical systems (MEMS) element, MEMS optical switch and MEMS fabrication method are described. The MEMS element comprises a crystalline and moveable element is moveably attached to the substrate. The moveable element includes a perpendicular portion oriented substantially perpendicular to a plane of the substrate. The crystal structure of the perpendicular portion and substrate are substantially similar. The moveable element moveable is moveably attached to the substrate for motion substantially constrained to a plane oriented substantially perpendicular to a plane of the substrate. In at least one position, a part of a perpendicular portion of the moveable element projects beyond a surface of the substrate. The moveable element may be retained in place by a latch. The perpendicular portion may be formed substantially perpendicular portion to the substrate. An array of such structures can be implemented to work as an optical switch. The optical switch may comprise a crystalline substrate and one or more moveable elements moveably attached to the substrate. The MEMS elements may be fabricated by providing a substrate; forming one or more trenches in the substrate to define a perpendicular portion of a element; and moveably attaching the moveable element to a first surface of the substrate; removing a portion of the substrate such that at least a part of the perpendicular portion projects beyond a second surface of the substrate. The various embodiments provide for a robust and reliable MEMS elements that may be simply fabricated and densely packed.
    • 描述了微机电系统(MEMS)元件,MEMS光开关和MEMS制造方法。 MEMS元件包括可移动地附接到基底的结晶和可移动元件。 可移动元件包括垂直于基本垂直于基底平面的垂直部分。 垂直部分和基底的晶体结构基本相似。 可移动的可移动元件可移动地附接到基板,用于基本上约束到基本上垂直于基板的平面定向的平面的运动。 在至少一个位置中,可移动元件的垂直部分的一部分突出超过衬底的表面。 可移动元件可以通过闩锁保持在适当的位置。 垂直部分可以形成为基本上垂直于基底的部分。 可以实现这种结构的阵列以用作光学开关。 光学开关可以包括结晶衬底和可移动地附接到衬底的一个或多个可移动元件。 可以通过提供衬底来制造MEMS元件; 在所述衬底中形成一个或多个沟槽以限定元件的垂直部分; 以及将所述可移动元件可移动地附接到所述基板的第一表面; 去除所述基底的一部分,使得所述垂直部分的至少一部分突出超过所述基底的第二表面。 各种实施例提供了可以简单地制造和密集包装的鲁棒且可靠的MEMS元件。
    • 37. 发明申请
    • Membrane structures for micro-devices, micro-devices including same and methods for making same
    • 用于微器件的膜结构,包括其的微器件及其制造方法
    • US20030087468A1
    • 2003-05-08
    • US09986107
    • 2001-11-07
    • XEROX CORPORATION
    • Peter M. GulvinElliott A. EklundJoel A. Kubby
    • H01L021/00
    • B81C1/00476B81B2203/0127B81C2201/053
    • A structure for a micro-device is fabricated by forming: a first layer of sacrificial material, a layer of structural material over the first sacrificial material layer, a second layer of sacrificial material over the structural material layer and a protective layer over the second sacrificial material layer. A release etch is used to remove the first and second sacrificial material layers at approximately the same rate. A structural feature may also be fabricated by forming: a first layer of a first material; a layer of structural material over the first layer of the first material; at least one cut in the structural material layer; and, a first layer of a sacrificial material, different from the first material, over the structural material layer such that an interface is created between the first layer of the sacrificial material and the first layer of the first material at the at least one cut.
    • 通过在第一牺牲材料层上形成第一牺牲材料层,结构材料层,在结构材料层上形成第二牺牲材料层,在第二牺牲层上形成保护层,制成微器件结构 材料层。 使用释放蚀刻以大致相同的速率去除第一和第二牺牲材料层。 还可以通过形成第一材料的第一层来制造结构特征; 在第一材料的第一层上方的结构材料层; 在结构材料层中至少有一个切口; 以及在所述结构材料层上方的与所述第一材料不同的牺牲材料的第一层,使得在所述牺牲材料的第一层和所述至少一个切口处的所述第一材料的所述第一层之间形成界面。