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    • 3. 发明授权
    • High force MEMS device
    • 高力MEMS器件
    • US07692521B1
    • 2010-04-06
    • US11433044
    • 2006-05-12
    • Michael B. Cohn
    • Michael B. Cohn
    • H01H51/22
    • H01H59/0009
    • Problems with the short lifetime of MEMS devices, low actuation forces, contaminant build-up on contacts, etc. are minimized by a MEMS device with an improved cantilever design that enables high force while maintaining large gaps. The improved cantilever design both allows for high force and fast switching while minimizing damage to contacts. The improved design can be fabricated on one or two substrates, which are bonded together with a seal ring to provide a packaged MEMS device.
    • 通过具有改进的悬臂设计的MEMS装置可以最大程度地减少MEMS器件的短寿命问题,低致动力,触点上的污染物积聚等问题,从而在保持较大间隙的同时实现高强度。 改进的悬臂设计允许高强度和快速切换,同时最小化对触点的损坏。 改进的设计可以在一个或两个基板上制造,所述基板与密封环结合在一起以提供封装的MEMS器件。
    • 4. 发明授权
    • MEMS device with integral packaging
    • 集成封装的MEMS器件
    • US06872902B2
    • 2005-03-29
    • US10608294
    • 2003-06-27
    • Michael B. CohnJi-Hai Xu
    • Michael B. CohnJi-Hai Xu
    • B81B3/00B81B7/00B81C1/00H01H59/00H01H57/00
    • H01H59/0009B81B7/0077B81B2201/018B81B2203/0118B81B2207/093B81C1/00301B81C1/00357B81C3/001B81C2201/019B81C2203/0109B81C2203/0118B81C2203/019H01H2059/0018H01H2059/0072
    • A MEMS device and method of making same is disclosed. In one embodiment, a micro-switch includes a base assembly comprising a movable structure bearing a contact pad. The base assembly is wafer-scale bonded to a lid assembly comprising an activator and a signal path. The movable structure moves within a sealed cavity formed during the bonding process. The signal path includes an input line and an output line separated by a gap, which prevents signals from propagating through the micro-switch when the switch is deactivated. In operation, a signal is launched into the signal path. When the micro-switch is activated, a force is established by the actuator, which pulls a portion of the movable structure upwards towards the gap in the signal path, until the contact pad bridges the gap between the input line and output line, allowing the signal to propagate through the micro-switch. Prior to bonding, the MEMS structures are annealed on a first wafer and the conductive traces and other metals are annealed on a second wafer to allow each wafer to be processed separately using different processes, e.g., different annealing temperatures.
    • 公开了MEMS器件及其制造方法。 在一个实施例中,微型开关包括基座组件,其包括承载接触垫的可移动结构。 基座组件被晶片刻度结合到包括激活器和信号路径的盖组件。 可移动结构在接合过程中形成的密封空腔内移动。 信号路径包括输入线和由间隙分开的输出线,当开关被去激活时,该线路防止信号通过微型开关传播。 在操作中,信号被发送到信号路径中。 当微动开关被激活时,致动器建立一个力,致动器将可移动结构的一部分朝向信号路径中的间隙向上拉,直到接触垫桥接输入线和输出线之间的间隙,从而允许 信号通过微型开关传播。 在结合之前,MEMS结构在第一晶片上退火,并且导电迹线和其它金属在第二晶片上进行退火,以允许使用不同工艺(例如不同的退火温度)分别对每个晶片进行加工。
    • 5. 发明申请
    • MEMS DEVICE WITH INTEGRAL PACKAGING
    • 具有整体封装的MEMS器件
    • US20080272867A1
    • 2008-11-06
    • US11929245
    • 2007-10-30
    • Michael B. CohnJi-Hai Xu
    • Michael B. CohnJi-Hai Xu
    • H01L21/48H01H51/22
    • H01H59/0009B81B7/0077B81B2201/018B81B2203/0118B81B2207/093B81C1/00301B81C1/00357B81C3/001B81C2201/019B81C2203/0109B81C2203/0118B81C2203/019H01H2059/0018H01H2059/0072
    • A MEMS device and method of making same is disclosed. In one embodiment, a micro-switch includes a base assembly comprising a movable structure bearing a contact pad. The base assembly is wafer-scale bonded to a lid assembly comprising an activator and a signal path. The movable structure moves within a sealed cavity formed during the bonding process. The signal path includes an input line and an output line separated by a gap, which prevents signals from propagating through the micro-switch when the switch is deactivated. In operation, a signal is launched into the signal path. When the micro-switch is activated, a force is established by the actuator, which pulls a portion of the movable structure upwards towards the gap in the signal path, until the contact pad bridges the gap between the input line and output line, allowing the signal to propagate through the micro-switch. Prior to bonding, the MEMS structures are annealed on a first wafer and the conductive traces and other metals are annealed on a second wafer to allow each wafer to be processed separately using different processes, e.g., different annealing temperatures.
    • 公开了MEMS器件及其制造方法。 在一个实施例中,微型开关包括基座组件,其包括承载接触垫的可移动结构。 基座组件被晶片刻度结合到包括激活器和信号路径的盖组件。 可移动结构在接合过程中形成的密封空腔内移动。 信号路径包括输入线和由间隙分开的输出线,当开关被去激活时,该线路防止信号通过微型开关传播。 在操作中,信号被发送到信号路径中。 当微动开关被激活时,致动器建立一个力,致动器将可移动结构的一部分朝向信号路径中的间隙向上拉,直到接触垫桥接输入线和输出线之间的间隙,从而允许 信号通过微型开关传播。 在结合之前,MEMS结构在第一晶片上退火,并且导电迹线和其它金属在第二晶片上进行退火,以允许使用不同工艺(例如不同的退火温度)分别对每个晶片进行加工。
    • 7. 发明申请
    • MEMS DEVICE WITH INTEGRAL PACKAGING
    • 具有整体封装的MEMS器件
    • US20120193754A1
    • 2012-08-02
    • US13368275
    • 2012-02-07
    • Michael B. CohnJi-Hai Xu
    • Michael B. CohnJi-Hai Xu
    • H01L29/06
    • H01H59/0009B81B7/0077B81B2201/018B81B2203/0118B81B2207/093B81C1/00301B81C1/00357B81C3/001B81C2201/019B81C2203/0109B81C2203/0118B81C2203/019H01H2059/0018H01H2059/0072
    • A MEMS device and method of making same is disclosed. In one embodiment, a micro-switch includes a base assembly comprising a movable structure bearing a contact pad. The base assembly is wafer-scale bonded to a lid assembly comprising an activator and a signal path. The movable structure moves within a sealed cavity formed during the bonding process. The signal path includes an input line and an output line separated by a gap, which prevents signals from propagating through the micro-switch when the switch is deactivated. In operation, a signal is launched into the signal path. When the micro-switch is activated, a force is established by the actuator, which pulls a portion of the movable structure upwards towards the gap in the signal path, until the contact pad bridges the gap between the input line and output line, allowing the signal to propagate through the micro-switch.
    • 公开了MEMS器件及其制造方法。 在一个实施例中,微型开关包括基座组件,其包括承载接触垫的可移动结构。 基座组件被晶片刻度结合到包括激活器和信号路径的盖组件。 可移动结构在接合过程中形成的密封空腔内移动。 信号路径包括输入线和由间隙分开的输出线,当开关被去激活时,该线路防止信号通过微型开关传播。 在操作中,信号被发送到信号路径中。 当微动开关被激活时,致动器建立一个力,致动器将可移动结构的一部分朝向信号路径中的间隙向上拉,直到接触垫桥接输入线和输出线之间的间隙,从而允许 信号通过微型开关传播。