Abstract:
An integrated circuit and method are provided for sensing activity such as acceleration in a predetermined direction. The integrated released beam sensor preferably includes a switch detecting circuit region and a sensor switching region connected to and positioned adjacent the switch detecting circuit region. The sensor switching region preferably includes a fixed contact layer, remaining portions of a sacrificial layer on the fixed contact layer, and a floating contact on the remaining portions of the sacrificial layer and having only portions thereof directly overlying the fixed contact layer and in spaced relation therefrom in a normally open position and extending lengthwise generally transverse to the predetermined direction so that the floating contact contacts the fixed contact layer responsive to acceleration in the predetermined direction. The floating contact is preferably a released beam which is released by opening a window or removing unwanted portions of the sacrificial layer. The methods of forming an integrated sensor advantageously are preferably compatible with know integrated circuit manufacturing processes, such as for CMOS circuit manufacturing, with only slight variations therefrom.
Abstract:
An insulating layer with at least one via is provided over a metal plate. A sacrificial layer is applied over a portion of the insulating layer so that the sacrificial layer extends into the via. A metal bridge having at least one opening is provided over a portion of the sacrificial layer and a portion of the insulating layer so that the metal bridge extends over the via and the opening is situated adjacent a portion of the sacrificial layer. A reinforcing seal layer with a well is provided over the metal bridge so that the well is situated adjacent to at least a portion of the opening. The sacrificial layer is then removed.
Abstract:
The present disclosure provides a radio frequency micro-electro-mechanical switch and a radio frequency device, belong to the field of micro-electro-mechanical systems technology, and can at least partially solve a problem that functional performance of an existing radio frequency micro-electro-mechanical switch is easily to be affected in scenarios such as bending deformation of devices. The radio frequency micro-electro-mechanical switch provided by the present disclosure includes: a substrate; and a signal electrode, a first ground electrode, a second ground electrode and a connecting membrane bridge disposed on the substrate, the connecting membrane bridge crosses over the signal electrode, two ends of the connecting membrane bridge are connected to the first ground electrode and the second ground electrode respectively, and the connecting membrane bridge includes a stretchable structure being stretchable in a stretchable direction the same as an extending direction in which the connecting membrane bridge extends.
Abstract:
Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and design structures are disclosed. The method includes forming at least one Micro-Electro-Mechanical System (MEMS) cavity. The method for forming the cavity further includes forming at least one first vent hole of a first dimension which is sized to avoid or minimize material deposition on a beam structure during sealing processes. The method for forming the cavity further includes forming at least one second vent hole of a second dimension, larger than the first dimension.
Abstract:
The present application discloses a method for forming electrical contacts on a semiconductor substrate. The method includes forming a first metal layer over the substrate, and forming a layer of a second metal oxide by sputter deposition of a second metal in an oxygen environment.
Abstract:
To provide a contact point structure of an electronic device capable of maintaining stable impact resistance. There is provided a contact point structure including: a base portion that is a semiconductor substrate; a movable contact point portion that is supported by the base portion and is a part of a movable member capable of being driven in a predetermined direction; and a fixed contact point portion that faces the movable contact point portion. The fixed contact point portion includes a fixed portion that is supported by the base portion and an extending member that extends from the fixed portion and is capable of being displaced relative to the fixed portion.
Abstract:
According to various embodiments, a MEMS device includes a substrate, an electrically movable heating element having a first node coupled to a first terminal of a first voltage source and the second node coupled to a reference voltage source, a first anchor anchoring the first node and a second anchor anchoring the second node of the electrically movable heating element to the substrate, and a cavity between the first anchor and the second anchor and between the electrically movable heating element and the substrate.
Abstract:
A switching device includes an opening disposed in a substrate. A source is disposed adjacent the opening and has a contact surface parallel to sidewalls of the opening. A drain is disposed adjacent the opening and has a contact surface parallel to the sidewalls of the opening. A moveable gate stack includes a channel and a gate. The moveable gate stack is disposed within the opening.
Abstract:
A switching device includes an opening disposed in a substrate. A source is disposed adjacent the opening and has a contact surface parallel to sidewalls of the opening. A drain is disposed adjacent the opening and has a contact surface parallel to the sidewalls of the opening. A moveable gate stack includes a channel and a gate. The moveable gate stack is disposed within the opening.
Abstract:
A micro-electrical-mechanical systems (MEMS) device includes a substrate, one or more anchors formed on a first surface of the substrate, and a piezoelectric layer suspended over the first surface of the substrate by the one or more anchors. A first electrode may be provided on a first surface of the piezoelectric layer facing the first surface of the substrate, such that the first electrode is in contact with a first bimorph layer of the piezoelectric layer. A second electrode may be provided on a second surface of the piezoelectric layer opposite the first surface, such that the second electrode is in contact with a second bimorph layer of the piezoelectric layer.