Patent classifications
B81C1/00484
Field emission devices and methods of making thereof
In one embodiment of the present invention, an electronic device includes a first emitter/collector region and a second emitter/collector region disposed in a substrate. The first emitter/collector region has a first edge/tip, and the second emitter/collector region has a second edge/tip. A gap separates the first edge/tip from the second edge/tip. The first emitter/collector region, the second emitter/collector region, and the gap form a field emission device.
SIMPLIFIED MEMS DEVICE FABRICATION PROCESS
A simplified MEMS fabrication process and MEMS device is provided that allows for cheaper and lighter-weight MEMS devices to be fabricated. The process comprises etching a plurality of holes or other feature patterns into a MEMS device, and then etching away the underlying wafer such that, after the etching process, the MEMS device is the required thickness and the individual die are separated, avoiding the extra steps of wafer thinning and die dicing. By etching trenches into the substrate wafer and filling them with a MEMS base material, sophisticated taller MEMS devices with larger force may be made.
METHOD OF ADDRESSING FILM LIFTOFF IN MEMS FABRICATION
A method of fabricating a MEMS device. A first spacer is formed above a CMOS substrate containing circuitry. Vias are formed within the first spacer. A first metal is formed above the first spacer and vias and patterned to form a MEMS element. A second spacer is formed above the MEMS element and first spacer. A via is formed within the second spacer. A second metal is formed above the second spacer and the via. A capping layer is formed above the second metal. The second metal is patterned to form a second MEMS element. The device is cleaned using a developer solution while the capping layer protects the second MEMS element. The first and second spacers are removed to release the first and second MEMS elements.
Simplified MEMS device fabrication process
A simplified MEMS fabrication process and MEMS device is provided that allows for cheaper and lighter-weight MEMS devices to be fabricated. The process comprises etching a plurality of holes or other feature patterns into a MEMS device, and then etching away the underlying wafer such that, after the etching process, the MEMS device is the required thickness and the individual die are separated, avoiding the extra steps of wafer thinning and die dicing. By etching trenches into the substrate wafer and filling them with a MEMS base material, sophisticated taller MEMS devices with larger force may be made.
SIMPLIFIED MEMS DEVICE FABRICATION PROCESS
A simplified MEMS fabrication process and MEMS device is provided that allows for cheaper and lighter-weight MEMS devices to be fabricated. The process comprises etching a plurality of holes or other feature patterns into a MEMS device, and then etching away the underlying wafer such that, after the etching process, the MEMS device is the required thickness and the individual die are separated, avoiding the extra steps of wafer thinning and die dicing. By etching trenches into the substrate wafer and filling them with a MEMS base material, sophisticated taller MEMS devices with larger force may be made.
METHOD FOR MANUFACTURING A MEMS ELEMENT
A method for manufacturing a MEMS element, including the following: forming a least one stationary weight element and at least one moving weight element in the MEMS element, and positioning at least one fixing element at the stationary weight element and at the moving weight element, the fixing element being formed so as to be able to be severed.
Dual micro-electro mechanical system and manufacturing method thereof
A micro electro mechanical system (MEMS) includes a circuit substrate, a first MEMS structure disposed over the circuit substrate, and a second MEMS structure disposed over the first MEMS structure.