Namba, US
Carol Namba, Walnut, CA US
Patent application number | Description | Published |
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20090108299 | High electron mobility transistor semiconductor device having field mitigating plate and fabrication method thereof - A semiconductor device includes a T-gate disposed between drain and source regions and above a barrier layer to form a Schottky contact to the channel layer. A first inactive field mitigating plate is disposed above a portion of the T-gate and a second active field plate is disposed above the barrier layer and in a vicinity of the T-gate. | 04-30-2009 |
20090159930 | High electron mobility transistor having self-aligned miniature field mitigating plate and protective dielectric layer and fabrication method thereof - A semiconductor device is fabricated to include source and drain contacts including an ohmic metal sunken into the barrier layer and a portion of the channel layer; a protective dielectric layer disposed between the source and drain contacts on the barrier layer; a metallization layer disposed in drain and source ohmic vias between the source contact and the protective dielectric layer and between the protective dielectric layer and the drain contact; and a metal T-gate disposed above the barrier layer including a field mitigating plate disposed on a side portion of a stem of the metal T-gate. | 06-25-2009 |
20100184262 | High electron mobility transistor having self-aligned miniature field mitigating plate and protective dielectric layer and fabrication method thereof - A semiconductor device is fabricated to include source and drain contacts including an ohmic metal sunken into the barrier layer and a portion of the channel layer; a protective dielectric layer disposed between the source and drain contacts on the barrier layer; a metallization layer disposed in drain and source ohmic vias between the source contact and the protective dielectric layer and between the protective dielectric layer and the drain contact; and a metal T-gate disposed above the barrier layer including a field mitigating plate disposed on a side portion of a stem of the metal T-gate. | 07-22-2010 |
Carol O. Namba, Walnut, CA US
Patent application number | Description | Published |
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20140264448 | METHOD OF FORMING A GATE CONTACT - A method is provided for forming a gate contact for a compound semiconductor device. The gate contact is formed from a gate contact portion and a top or wing contact portion. The method allows for the tunablity of the size of the wing contact portion, while retaining the size of the gate contact portion based on a desired operational frequency. This is accomplished by providing for one or more additional conductive material processes on the wing contact portion to increase the cross-sectional area of the wing contact portion reducing the gate resistance, while maintaing the length of the gate contact portion to maintain the operating frequency of the device. | 09-18-2014 |
Carol Osaka Namba, Walnut, CA US
Patent application number | Description | Published |
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20090078888 | Method and Apparatus For Detecting and Adjusting Substrate Height - A method and apparatus | 03-26-2009 |
20090267115 | CLUB EXTENSION TO A T-GATE HIGH ELECTRON MOBILITY TRANSISTOR - A method of fabricating a T-gate HEMT with a club extension comprising the steps of: providing a substrate; providing a bi-layer resist on the substrate; exposing an area of the bi-layer resist to electron beam lithography where the area corresponds to a T-gate opening; exposing an area of the bi-layer resist to electron beam lithography where the area corresponds to the shape of the club extension wherein the area corresponding to the club extension is approximately 1 micron to an ohmic source side of a T-gate and approximately 0.5 microns forward from a front of the T-gate; developing out the bi-layer resist in the exposed area that corresponds to the T-gate opening; developing out the bi-layer resist in the exposed area that corresponds to the club extension; and forming the T-gate and club extension through a metallization process. | 10-29-2009 |
Elaine M. Namba, Decatur, GA US
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20120160247 | Splash Resistant Facemask - There is provided a splash resistant facemask having two outer splash layers adjacent each other on a side away from a wearer, a filter layer and an inside layer. None of the layers contains a repellent treatment. The facemask can pass a fluid splash resistance test, e.g. ASTM F-1862-05, wherein fluid is directed at the mask at a pressure of 160 mmHg. | 06-28-2012 |
Katsuhiro A. Namba, Seattle, WA US
Patent application number | Description | Published |
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20090150761 | Method and apparatus for protecting regions of an electronic document - A method and apparatus for protecting regions of an electronic document are provided. According to the method, the entire electronic document is protected. The selection of a region within the electronic document is received along with identity of one or more users authorized to freely edit the selected region. The identified users are authorized to freely edit only the selected region of the electronic document. A request is then received to edit a region of the electronic document from a current user. In response to the request, a determination is made as to whether the current user is authorized to edit the region. If the user is not authorized to edit the region, the request is denied. | 06-11-2009 |
Robert S. Namba, Corona Del Mar, CA US
Patent application number | Description | Published |
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20080312658 | BONE-SHAPING TOOLS - Surgical, bone-shaping tools include a saw and a planer. Each tool includes a pair of spaced-apart circular plates of equal diameter, each plate having an inner surface an outer surface, and a peripheral edge. The plates are configured to rotate about a common axis with the inner surfaces facing one another. The inner surface of each plate includes a concentric circular rim, each being of equal diameter but less than the diameter of the circular plates. The circular rims are spaced apart by a cylindrical axle aligned along the common axis. An elongate flat support plate having a proximal end, a distal end and opposing side edges, includes a bore or notch to receive the cylindrical post. A first portion of a flexible drive element engages with a drive mechanism and a second portion thereof engages with the circular rims, thereby enabling the plates to rotate in unison in response to the drive mechanism, providing an efficient bone cutting tool. One or both of the plates is physically configured for bone modification. According to one embodiment, the peripheral edges of both plates includes saw teeth or an abrasive surface enabling the bone-shaping tool to be used as a plunging saw. According to an alternative embodiment, the outer surface of one or both of the plates includes a plurality of radially oriented cutting blades, enabling the bone-shaping tool to be used as a planer. | 12-18-2008 |
20110172600 | SAFE TROCHAR WITH GUIDE FOR PLACEMENT OF SURGICAL DRAINS - A method and apparatus for the safe surgical placement of trochars, is provided. The trochar has a sheath protecting the sharp point. The guide includes a receiver, into which the trochar with sheath is inserted, protecting personnel against sticks. The guide has a holder that grips the trochar in the X, Y, Z and Theta directions, providing position and direction of the point. The guide provides a handle for holding the trochar, reducing effort. The trochar point is exposed only after opening the guide. The receiver with sheath is a target, which provides an accurate reference for the position of the sharp point. The target also provides support as the trochar is being advanced through soft tissue. The trochar is locked into the safety guide until the guide is closed, and the point is safely in the sheath. Since the guide may not be reopened, the trochar point and body fluids are safely covered. Operating Room personnel are protected against hazardous sharps injuries. | 07-14-2011 |
Takashi Namba, Greensboro, NC US
Patent application number | Description | Published |
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20080197230 | Spool for fastener strips and method of winding fastener strips - A spool for a fastener strip includes a cylinder comprising a substantially U-shaped recess or protrusion for accommodating a turn in the fastener strip such that an upstream portion and a downstream portion of the fastener strip can point in the same direction. The recess or protrusion allows the strip to be wound onto the spool in such a manner that when the strip is unwound, there is a sufficiently long lead of fastener strip to allow an operator to replace the emptied spool with a new spool and to splice an upstream end of the strip from the emptied spool with a downstream end of the strip from the new spool. | 08-21-2008 |