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PLANAR PROCESSING OF SUSPENDED MICROELECTROMECHANICAL SYSTEMS (MEMS) DEVICES
PLANAR PROCESSING OF SUSPENDED MICROELECTROMECHANICAL SYSTEMS (MEMS) DEVICES
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机译:悬浮微机电系统(MEMS)设备的平面处理
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摘要
Suspended microelectromechanical systems (MEMS) devices including a stack of one or more materials over a cavity in a substrate are described. The suspended MEMS device may be formed by forming the stack, which may include one or more electrode layers and an active layer, over the substrate and removing part of the substrate underneath the stack to form the cavity. The resulting suspended MEMS device may include one or more channels that extend from a surface of the device to the cavity and the one or more channels have sidewalls with a spacer material. The cavity may have rounded corners and may extend beyond the one or more channels to form one or more undercut regions. The manner of fabrication may allow for forming the stack layers with a high degree of planarity.
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