Patent classifications
H01H50/005
MEMS SWITCHES WITH REDUCED SWITCHING VOLTAGE AND METHODS OF MANUFACTURE
An approach includes a method of fabricating a switch. The approach includes forming a first cantilevered electrode operable to directly contact a second fixed electrode upon an application of a voltage to a first fixed electrode, forming a second cantilevered electrode with an end that overlaps the first cantilevered electrode, and forming a hermetically sealed volume encapsulating the first fixed electrode, the second fixed electrode, the first cantilevered electrode, and the second cantilevered electrode.
Reconfigurable device for terahertz (THz) and infrared (IR) filtering and modulation
A reconfigurable device for terahertz (THz) or infrared (IR) ranges that includes a base substrate, a lower array attached to the base substrate, and an upper array attached to the base substrate and at least partially suspended over the lower array. Activation of the reconfigurable device causes the upper array to mechanically flex towards the lower array so that electrical contact is made therebetween. Methods of fabricating and operating the reconfigurable device are also provided.
Method of manufacturing MEMS switches with reduced voltage
An approach includes a method of fabricating a switch. The approach includes forming a first fixed electrode and a second fixed electrode, forming a first cantilevered electrode aligned vertically over the first fixed electrode and the second fixed electrode, and operable to directly contact the second fixed electrode upon an application of a voltage to the first fixed electrode, forming a second cantilevered electrode aligned vertically over the second fixed electrode, and which has an end that overlaps the first cantilevered electrode, and forming a hermetically sealed volume encapsulating the first fixed electrode, the second fixed electrode, the first cantilevered electrode, and the second cantilevered electrode.
MICRO ELECTROMAGNETICALLY ACTUATED LATCHED SWITCHES
Micro-electromagnetically actuated latched miniature relay switches formed from laminate layers comprising a spring and magnet, electromagnetic coils, magnetic latching material, and transmission line with contacts. Preferably the miniature relay switches transmit up to about 50 W of DC or AC line power, and carry up to about 10 A of load current, with an overall volume of less than about 100 mm.sup.3. In addition to switching large power, the device preferably requires less than 3 V to actuate, and has a latching feature that retains the switch state after actuation without the need for external applied voltage or current.
METHOD OF MANUFACTURING A SWITCH
MEMS switches and methods of manufacturing MEMS switches is provided. The MEMS switch having at least two cantilevered electrodes having ends which overlap and which are structured and operable to contact one another upon an application of a voltage by at least one fixed electrode.
Package MEMS switch and method
An electronic device and methods including a switch formed in a chip package are shown. An electronic device and methods including a switch formed in a polymer based dielectric are shown. Examples of switches shown include microelectromechanical system (MEMS) structures, such as cantilever switches and/or shunt switches.
Frequency addressable microactuators
Frequency addressable micro-actuators having one or more movable resonating elements actuators, such as cantilevers, can be forced into oscillation by, e.g., electromagnetic actuation. The movable structure is designed to latch at a certain amplitude using one of several latching techniques, such as a near-field magnetic field. In operation, the movable element is driven into resonance, producing a large amplitude, which results in the structure latching. Through resonance, a small force applied in a repeating manner can result in the latching of the actuator, an operation which would normally require a large force. If two or more units, each with different harmonic frequencies, are placed under the same influence, only the one with a harmonic response to the driving force will latch. A single influencing signal may be used to latch more than one device on demand by tuning the frequency to match the natural frequency of the device of interest.
Micro electromagnetically actuated latched switches
Micro-electromagnetically actuated latched miniature relay switches formed from laminate layers comprising a spring and magnet, electromagnetic coils, magnetic latching material, and transmission line with contacts. Preferably the miniature relay switches transmit up to about 50 W of DC or AC line power, and carry up to about 10 A of load current, with an overall volume of less than about 100 mm.sup.3. In addition to switching large power, the device preferably requires less than 3 V to actuate, and has a latching feature that retains the switch state after actuation without the need for external applied voltage or current.
MEMS-based switching system
A switching element that is at least partially implemented in one or more printed wiring boards (PWBs). A plurality of inputs and a plurality of outputs may be integrated into the PWB(s). In some embodiments, a plurality of contact bars may also be comprised in respective contact bar pockets bounded at least partially ab at least one of the PWB(s). The switching element is selectively operable in first and second states, the first state in which at least one contact bar couples one of the plurality of inputs to one of the plurality of outputs such that an analog signal input to the respective input is routed to the respective output and the second state in which at least one contact bar is held in an off state.
Overcurrent protection
A microelectromechanical systems (MEMS) switch device including current sensing and overcurrent protection can include a movable plate movable between an open position and a closed position, wherein the moveable plate is moved by applying at least one or more of an electrostatic force and a magnetic force to move the movable plate. The movable plate can include a shunt operable to conduct current when the movable plate is the closed position. An inductive coil electronically coupled to the shunt can detect current conducted through the shunt.