Patents Assigned to Microassembly Technologies, Inc.
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Patent number: 8295027Abstract: 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.Type: GrantFiled: February 7, 2012Date of Patent: October 23, 2012Assignee: MicroAssembly Technologies, Inc.Inventors: Michael Bennett Cohn, Ji-Hai Xu
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Publication number: 20120193754Abstract: 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.Type: ApplicationFiled: February 7, 2012Publication date: August 2, 2012Applicant: MicroAssembly Technologies, Inc.Inventors: Michael B. Cohn, Ji-Hai Xu
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Patent number: 8179215Abstract: 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.Type: GrantFiled: October 30, 2007Date of Patent: May 15, 2012Assignee: MicroAssembly Technologies, Inc.Inventors: Michael Bennett Cohn, Ji-Hai Xu
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Patent number: 7750462Abstract: Improved microelectromechanical systems (MEMS), processes and apparatus using thermocompression bonding are disclosed. For example, process embodiments are disclosed in which wafer-scale as well as die-scale thermocompression bonding is utilized to encapsulate MEMS and/or to provide electrical interconnections with MEMS. Apparatus embodiments include apparatus for performing thermocompression bonding and bonded hybrid structures manufactured in accordance with the process embodiments. Devices having various substrate bonding and/or sealing configurations variously offer the advantage of reduced size, higher manufacturing yields, reduced costs, improved reliability, improved compatibility with existing semiconductor manufacturing process and/or greater versatility of applications.Type: GrantFiled: October 30, 2007Date of Patent: July 6, 2010Assignee: Microassembly Technologies, Inc.Inventors: Michael Bennett Cohn, Joseph T. Kung
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Patent number: 7692521Abstract: 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.Type: GrantFiled: May 12, 2006Date of Patent: April 6, 2010Assignee: Microassembly Technologies, Inc.Inventor: Michael B. Cohn
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Publication number: 20080272867Abstract: 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.Type: ApplicationFiled: October 30, 2007Publication date: November 6, 2008Applicant: MICROASSEMBLY TECHNOLOGIES, INC.Inventors: Michael B. Cohn, Ji-Hai Xu
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Patent number: 7276789Abstract: Improved microelectromechanical systems (MEMS), processes and apparatus using thermocompression bonding are disclosed. For example, process embodiments are disclosed in which wafer-scale as well as die-scale thermocompression bonding is utilized to encapsulate MEMS and/or to provide electrical interconnections with MEMS. Apparatus embodiments include apparatus for performing thermocompression bonding and bonded hybrid structures manufactured in accordance with the process embodiments. Devices having various substrate bonding and/or sealing configurations variously offer the advantage of reduced size, higher manufacturing yields, reduced costs, improved reliability, improved compatibility with existing semiconductor manufacturing process and/or greater versatility of applications.Type: GrantFiled: May 20, 2004Date of Patent: October 2, 2007Assignee: Microassembly Technologies, Inc.Inventors: Michael B. Cohn, Joseph T. Kung
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Patent number: 6872902Abstract: 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.Type: GrantFiled: June 27, 2003Date of Patent: March 29, 2005Assignee: MicroAssembly Technologies, Inc.Inventors: Michael B. Cohn, Ji-Hai Xu
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Patent number: 6853067Abstract: Improved microelectromechanical systems (MEMS), processes and apparatus using thermocompression bonding are disclosed. For example, process embodiments are disclosed in which wafer-scale as well as die-scale thermocompression bonding is utilized to encapsulate MEMS and/or to provide electrical interconnections with MEMS. Apparatus embodiments include apparatus for performing thermocompression bonding and bonded hybrid structures manufactured in accordance with the process embodiments. Devices having various substrate bonding and/or sealing configurations variously offer the advantage of reduced size, higher manufacturing yields, reduced costs, improved reliability, improved compatibility with existing semiconductor manufacturing process and/or greater versatility of applications.Type: GrantFiled: February 28, 2003Date of Patent: February 8, 2005Assignee: Microassembly Technologies, Inc.Inventors: Michael B. Cohn, Joseph T. Kung