Patent application number | Description | Published |
20090053401 | Piezoelectric deposition for BAW resonators - Piezoelectric deposition for BAW resonators wherein a thin amorphous layer of AlN over the bottom electrode before depositing a second layer of AlN over the amorphous layer of AlN, the depositing occurring at a temperature allowing the deposited AlN to self-organize into a desired columnar phase. The bottom electrode may have acoustic isolation thereunder, such as a Bragg mirror. Various details of the fabrication process are disclosed. | 02-26-2009 |
20090302973 | Bulk Acoustic Resonators with Multi-Layer Electrodes - Bulk acoustic resonators with multi-layer electrodes for Bulk Acoustic Wave (BAW) resonator devices. Various electrode combinations are disclosed. The invention provides a better compromise at resonant frequencies from 1800 MHz to 4 GHz in terms of keff2 and resistance than state of the art solutions using either Mo, or a bilayer of Al and W. | 12-10-2009 |
20100005654 | Planarization Methods - Planarization methods for maintaining planar surfaces in the fabrication of such devices as BAW devices and capacitors on a planar or planarized substrate are described. In accordance with the method, a metal layer is deposited and patterned, and an oxide layer is deposited using a high density plasma chemical vapor deposition (HDP CVD) process to a thickness equal to the thickness of the metal layer. The HDP CVD process provides an oxide layer on the patterned metal tapering upward from the edge of the patterned metal layer. Then, after masking and etching the oxide layer from the patterned metal layer, the patterned metal layer and surrounding oxide layer form a substantially planar layer, interrupted by small remaining oxide protrusions at the edges of the patterned layer. These small remaining oxide protrusions may be too small to significantly disturb the flatness of a further oxide or other layer or they may be further mitigated by the application of another HDP CVD oxide film. | 01-14-2010 |
20130082320 | STRAPPED DUAL-GATE VDMOS DEVICE - Semiconductor devices are described that include a dual-gate configuration. In one or more implementations, the semiconductor devices include a substrate having a first surface and a second surface. The substrate includes a first and a second body region formed proximal to the first surface. Moreover, each body region includes a source region formed therein. The substrate further includes a drain region formed proximal to the second surface and an epitaxial region that is configured to function as a drift region between the drain region and the source regions. A dual-gate is formed over the first surface of the substrate. The dual-gate includes a first gate region and a second gate region that define a gap there between to reduce the gate to drain capacitance. A conductive layer may be formed over the first gate region and the second gate region to lower the effective resistance of the dual-gate. | 04-04-2013 |
Patent application number | Description | Published |
20100206774 | MAGNETIC REMOVAL OF MATERIAL FROM A MIXTURE BASED ON SULFIDED DILUENT IN THE MIXTURE - Methods and apparatus relate to processing of petroleum with a bed having a sorbent based diluent that the petroleum contacts upon passing through the bed. Magnetic properties of the sorbent and any other material, such as zeolite, used in the bed enable separation of such bed constituents based on a sulfided form of the sorbent being magnetic in contrast to a non-sulfided form of the sorbent being non-magnetic. Dividing the bed constituents into first and second portions by magnetic separation facilitates in selective replacing and/or regenerating the first portion independent of the second portion. | 08-19-2010 |
20110152588 | PRODUCTION OF HYDROCARBON FROM HIGH FREE FATTY ACID CONTAINING FEEDSTOCKS - There is provided a process for converting high free fatty acid containing feedstock such as acidulated soapstock into hydrocarbon compound especially fuel range hydrocarbons using amidation as a pretreatment step followed by hydroprocessing. | 06-23-2011 |
20110308543 | METHOD FOR CLEANING POROUS METALLIC FILTERS USING A STEAM-ULTRASONIC TECHNIQUE - A method of cleaning plugged or dirty porous metallic filter elements to regain filter activity, comprising the steps of: steaming a filter element for a first period of time; submerging the filter element in a first solution; and exposing the first solution to ultrasound waves for a second period of time. | 12-22-2011 |
20120157742 | PRODUCTION OF RENEWABLE FUELS - The present disclosure relates to a process for the conversion of oxygen-containing hydrocarbons into long-chain hydrocarbons suitable for use as a fuel. These hydrocarbons may be derived from biomass, and may optionally be mixed with petroleum-derived hydrocarbons prior to conversion. The process utilizes a catalyst comprising Ni and Mo to convert a mixture comprising oxygenated hydrocarbons into product hydrocarbons containing from ten to thirty carbons. Hydro-conversion can be performed at a significantly lower temperature than is required for when utilizing a hydrotreating catalyst comprising Co and Mo (CoMo), while still effectively removing sulfur compounds (via hydrodesulfurization) to a level of 10 ppm (by weight) or less. | 06-21-2012 |
20120298555 | MAGNETIC REMOVAL OF MATERIAL FROM A MIXTURE BASED ON SULFIDED DILUENT IN THE MIXTURE - Methods and apparatus relate to processing of petroleum with a bed having a sorbent based diluent that the petroleum contacts upon passing through the bed. Magnetic properties of the sorbent and any other material, such as zeolite, used in the bed enable separation of such bed constituents based on a sulfided form of the sorbent being magnetic in contrast to a non-sulfided form of the sorbent being non-magnetic. Dividing the bed constituents into first and second portions by magnetic separation facilitates in selective replacing and/or regenerating the first portion independent of the second portion. | 11-29-2012 |