Abstract:
Deep via technology is used to construct an integrated silicon cantilever and cavity oriented in a vertical plane which creates an electrostatically-switched MEMS switch in a small wafer area. Another embodiment is a small wafer area electrostatically-switched, vertical-cantilever MEMS switch wherein the switch cavity is etched within a volume defined by walls grown internally within a silicon substrate using through vias.
Abstract:
Deep via technology is used to construct an integrated silicon cantilever and cavity oriented in a vertical plane which creates an electrostatically-switched MEMS switch in a small wafer area. Another embodiment is a small wafer area electrostatically-switched, vertical-cantilever MEMS switch wherein the switch cavity is etched within a volume defined by walls grown internally within a silicon substrate using through vias.
Abstract:
A system and method for manipulating the structural characteristics of a MEMS device include etching a plurality of holes into the surface of a MEMS device, wherein the plurality of holes comprise one or more geometric shapes determined to provide specific structural characteristics desired in the MEMS device.
Abstract:
Deep via technology is used to construct an integrated silicon cantilever and cavity oriented in a vertical plane which creates an electrostatically-switched MEMS switch in a small wafer area. Another embodiment is a small wafer area electrostatically-switched, vertical-cantilever MEMS switch wherein the switch cavity is etched within a volume defined by walls grown internally within a silicon substrate using through vias.
Abstract:
A MEMS (microelectromechanical systems) structure comprises a MEMS wafer. A MEMS wafer includes a cap with cavities bonded to a structural layer through a dielectric layer disposed between the cap and the structural layer. Unique configurations of MEMS devices and methods of providing such are set forth which provide for, in part, creating rounded, scalloped or chamfered MEMS profiles by shaping the etch mask photoresist reflow, by using a multi-step deep reactive ion etch (DRIE) with different etch characteristics, or by etching after DRIE.
Abstract:
According to an embodiment of a semiconductor device, the semiconductor device includes a micro-mechanical structure and a semiconductor material arranged over the micro-mechanical structure. A side surface of the semiconductor material includes a first region and a second region. The first region has an undulation, and the second region is a peripheral region of the side surface and decreases towards the micro-mechanical structure.
Abstract:
Methods and apparatus for forming MEMS devices. An apparatus includes at least a portion of a semiconductor substrate having a first thickness and patterned to form a moveable mass; a moving sense electrode forming the first plate of a first capacitance; at least one anchor patterned from the semiconductor substrate and having a portion that forms the second plate of the first capacitance and spaced by a first gap from the first plate; a layer of semiconductor material of a second thickness patterned to form a first electrode forming a first plate of a second capacitance and further patterned to form a second electrode overlying the at least one anchor and forming a second plate spaced by a second gap that is less than the first gap; wherein a total capacitance is formed that is the sum of the first capacitance and the second capacitance. Methods are disclosed.
Abstract:
The present disclosure is directed to a device and its method of manufacture in which a protective region is formed below a suspended body. The protective region allows deep reactive ion etching of a bulk silicon body to form a MEMS device without encountering the various problems presented by damage to the silicon caused by backscattering of oxide during overetching periods of DRIE processes.
Abstract:
Methods for fabricating of high aspect ratio probes and deforming micropillars and nanopillars are described. Use of polymers in deforming nanopillars and micropillars is also described.
Abstract:
A method includes a step of performing a time multiplexed etching process, wherein the last etching step of the time multiplexed etching process is of a first time duration. After performing the time multiplexed etching process, an etching step having a second time duration is performed, wherein the second time duration is greater than the first time duration.