Patents by Inventor Nelson Yee
Nelson Yee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11721566Abstract: Methods and systems for monitoring film thickness using a sensor assembly include a process chamber having a chamber body, a substrate support disposed in the chamber body, a lid disposed over the chamber body, and a sensor assembly coupled to the chamber body at a lower portion of the sensor assembly. The sensor assembly is coupled to the lid at an upper portion of the sensor assembly. The sensor assembly includes one or more apertures disposed through one or more sides of the sensor assembly, and the one or more sensors are disposed in the sensor assembly through the one or more of the apertures.Type: GrantFiled: July 13, 2021Date of Patent: August 8, 2023Assignee: Applied Materials, Inc.Inventors: Xiaozhou Che, Graeme Jamieson Scott, Richard Gustav Hagborg, Alan H. Ouye, Nelson A. Yee
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Publication number: 20230018891Abstract: One or more embodiments described herein generally relate to methods and systems for monitoring film thickness using a sensor assembly. In embodiments described herein, a process chamber having a chamber body, a substrate support disposed in the chamber body, a lid disposed over the chamber body, and a sensor assembly coupled to the chamber body at a lower portion of the sensor assembly. The sensor assembly is coupled to the lid at an upper portion of the sensor assembly. The sensor assembly includes one or more apertures disposed through one or more sides of the sensor assembly, and the one or more sensors are disposed in the sensor assembly through the one or more of the apertures.Type: ApplicationFiled: July 13, 2021Publication date: January 19, 2023Inventors: Xiaozhou CHE, Graeme Jamieson SCOTT, Richard Gustav HAGBORG, Alan H. OUYE, Nelson A. YEE
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Patent number: 9644262Abstract: A process shield may include an elongated annular body having an outer surface and an inner surface; a lip extending radially outward from the outer surface of the body proximate a first end of the body such that a first portion of the body extends beyond the lip toward the first end; a plurality of openings in the lip; and a pin disposed in each of the plurality of openings to align the target assembly atop the process shield when the lid is placed atop the process shield, wherein the pin comprises an elongated body having a first surface with a beveled peripheral edge, wherein the first surface has a first diameter, a second surface opposing the first surface, wherein the second surface has a second diameter, and a sidewall, between the first surface and the second surface, wherein the sidewall has a concave portion having a third diameter.Type: GrantFiled: March 5, 2014Date of Patent: May 9, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Ryan Hanson, Goichi Yoshidome, Nelson Yee
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Publication number: 20140261175Abstract: A process shield may include an elongated annular body having an outer surface and an inner surface; a lip extending radially outward from the outer surface of the body proximate a first end of the body such that a first portion of the body extends beyond the lip toward the first end; a plurality of openings in the lip; and a pin disposed in each of the plurality of openings to align the target assembly atop the process shield when the lid is placed atop the process shield, wherein the pin comprises an elongated body having a first surface with a beveled peripheral edge, wherein the first surface has a first diameter, a second surface opposing the first surface, wherein the second surface has a second diameter, and a sidewall, between the first surface and the second surface, wherein the sidewall has a concave portion having a third diameter.Type: ApplicationFiled: March 5, 2014Publication date: September 18, 2014Applicant: Applied Materials, Inc.Inventors: RYAN HANSON, GOICHI YOSHIDOME, NELSON YEE
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Publication number: 20140165474Abstract: A composition of a sintered superhard compact is provided. The sintered superhard compact body may comprise superhard particles, such as cubic boron nitride. The binder phase may bond the superhard particles together. The binder phase comprises a titanium compound and a balance aluminum compound. The titanium compound may be formed during the high pressure high temperature condition. The sintered superhard compact body may have an amount of the titanium compound in order to have a mixed wear and toughness application.Type: ApplicationFiled: August 23, 2013Publication date: June 19, 2014Applicant: DIAMOND INNOVATIONS, INCInventor: Nelson YEE
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Patent number: 8652222Abstract: Particulate compositions are described comprising an intimate mixture of a biomass, such as switchgrass or hybrid poplar, a non-biomass carbonaceous material, such as petroleum coke or coal, and a gasification catalyst, where the gasification catalyst is loaded onto at least one of the biomass or non-biomass for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.Type: GrantFiled: February 27, 2009Date of Patent: February 18, 2014Assignee: GreatPoint Energy, Inc.Inventors: Pattabhi K. Raman, Edwin J. Hippo, Nelson Yee
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Patent number: 8366795Abstract: Particulate compositions are described comprising a carbonaceous material, such as petroleum coke and/or coal, treated or otherwise associated with a gasification catalyst, where the catalyst is at least in part derived from a leachate from a biomass char, for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.Type: GrantFiled: February 27, 2009Date of Patent: February 5, 2013Assignee: GreatPoint Energy, Inc.Inventors: Pattabhi K. Raman, Nelson Yee
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Publication number: 20090229182Abstract: Particulate compositions are described comprising a carbonaceous material, such as petroleum coke and/or coal, treated or otherwise associated with a gasification catalyst, where the catalyst is at least in part derived from a leachate from a biomass char, for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.Type: ApplicationFiled: February 27, 2009Publication date: September 17, 2009Applicant: GREATPOINT ENERGY, INC.Inventors: Pattabhi K. Raman, Nelson Yee
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Publication number: 20090217587Abstract: Particulate compositions are described comprising an intimate mixture of a biomass, such as switchgrass or hybrid poplar, a non-biomass carbonaceous material, such as petroleum coke or coal, and a gasification catalyst, where the gasification catalyst is loaded onto at least one of the biomass or non-biomass for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.Type: ApplicationFiled: February 27, 2009Publication date: September 3, 2009Applicant: GREATPOINT ENERGY, INC.Inventors: Pattabhi K. Raman, Edwin J. Hippo, Nelson Yee
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Publication number: 20080135070Abstract: An apparatus and a method for cleaning a wafer are described. A chamber has a substrate support. A nozzle is disposed above the substrate support to spray de-ionized water droplets. The nozzle is coupled to a source of de-ionized water and a source of nitrogen. The nozzle is configured to mix the de-ionized water and the nitrogen outside the nozzle to have independent flow rate control of the two fluids for an optimized atomization in terms of spray uniformity in droplet size and velocity distributions. The nozzle to wafer distance can be adjusted and tuned to have an optimized jet spray for efficiently removing particles or contaminants from a surface of a wafer without causing any feature damage.Type: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Inventors: Wei Lu, Jianshe Tang, Alexander Sou-Kang Ko, Nelson A. Yee, Bo Xie, Tseng-Chung Lee
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Publication number: 20080135069Abstract: An apparatus and a method for cleaning a wafer are described. A chamber has a substrate support. A nozzle is disposed above the substrate support to spray de-ionized water droplets. The nozzle is coupled to a source of de-ionized water and a source of nitrogen. The nozzle is configured to mix the de-ionized water and the nitrogen outside the nozzle to have independent flow rate control of the two fluids for an optimized atomization in terms of spray uniformity in droplet size and velocity distributions. The nozzle to wafer distance can be adjusted and tuned to have an optimized jet spray for efficiently removing particles or contaminants from a surface of a wafer without causing any feature damage.Type: ApplicationFiled: October 25, 2007Publication date: June 12, 2008Inventors: Wei Lu, Jianshe Tang, Alexander Sou-Kang Ko, Nelson A. Yee, Bo Xie, Tseng-Chung Lee
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Publication number: 20070246081Abstract: The present invention provides methods, apparatus, and systems for cleaning a substrate that include a controller and a nozzle coupled to the controller. The controller is adapted to direct the nozzle to dispense a uniform fluid spray pattern onto a substrate. The controller is adapted create the uniform fluid spray pattern by adjusting at least one operational parameter of the nozzle to cause a predefined percentage of droplets to be within a predetermined size range. Numerous other aspects are disclosed.Type: ApplicationFiled: March 23, 2007Publication date: October 25, 2007Inventors: Wei Lu, Jianshe Tang, Alexander Ko, Nelson Yee, Bo Xie, John Lee, Rick Endo
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Publication number: 20070234951Abstract: The present invention provides methods, apparatus, and systems for cleaning a substrate that include a controller and a nozzle coupled to the controller. The controller is adapted to direct the nozzle to dispense a uniform fluid spray pattern onto a substrate. The controller is adapted create the uniform fluid spray pattern by adjusting at least one operational parameter of the nozzle to cause a predefined percentage of droplets to be within a predetermined size range. Numerous other aspects are disclosed.Type: ApplicationFiled: March 23, 2007Publication date: October 11, 2007Inventors: WEI LU, Jianshe Tang, Alexander Ko, Nelson Yee, Bo Xie, John Lee, Richard Endo
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Patent number: 6485603Abstract: An apparatus for redirecting energy applied to a susceptor of a substrate process chamber. Specifically, a shield comprising one or more reflector members is disposed below said susceptor whereby thermal energy radiated from a backside of said susceptor is reflected back to the susceptor. The apparatus comprises a bracket member attached to the reflector members and a pedestal assembly disposed below said susceptor. The reflector members are fabricated from a low emissivity material such as stainless steel (which can be polished to a highly reflective condition). Also, the first and second reflector members can be annealed.Type: GrantFiled: July 1, 1999Date of Patent: November 26, 2002Assignee: Applied Materials, Inc.Inventors: Nelson Yee, Matthew Tsai
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Patent number: 6149784Abstract: A shield for a DC magnetron sputtering reactor, particularly advantageous for reliably igniting the plasma used in sputtering a ferromagnetic material such as cobalt or nickel. The grounded shield includes a slanted portion separated from the beveled periphery of the target by a small gap operating as a dark space. The shield also includes a straight cylindrical portion surrounding the main processing area. The slanted portion is joined to the cylindrical portion at a knee According to one embodiment of the invention, the knee is located greater than 9 mm from the face of the target and at a radial position at least 1 mm inward of the outer periphery of the target face.Type: GrantFiled: October 22, 1999Date of Patent: November 21, 2000Assignee: Applied Materials, Inc.Inventors: Jingang Su, Nelson A. Yee, John C. Forster, Kenny King-Tai Ngan, Lisa L. Yang