Patents by Inventor Anh N. Nguyen
Anh N. Nguyen 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).
-
Publication number: 20120208372Abstract: Methods for gas delivery to a process chamber are provided herein. In some embodiments, a method may include flowing a process gas through one or more gas conduits, each gas conduit having an inlet and an outlet for facilitating the flow of gas through the gas conduits and into a gas inlet funnel having a second volume, wherein each gas conduit has a first volume less than the second volume, and wherein each gas conduit has a cross-section that increases from a first cross-section proximate the inlet to a second cross-section proximate the outlet but excluding any intersection points between the gas inlet funnel and the gas conduit, and wherein the second cross-section is non-circular; and delivering the process gas to the substrate via the gas inlet funnel.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Applicant: APPLIED MATERIALS, INC.Inventors: KEDARNATH SANGAM, ANH N. NGUYEN
-
Publication number: 20120135609Abstract: Provided are gas distribution plates (showerheads) for use in an apparatus configured to form a film during, for example, an atomic layer deposition (ALD) process. The gas distribution plate comprises a body defining a thickness and a peripheral edge and has a front surface for facing the substrate. The front surface has a central region with a plurality of openings configured to distribute process gases over the substrate and a focus ring with a sloped region. The focus ring is concentric to the central region such that the thickness at the focus ring is greater than the thickness at the central region.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Applicant: Applied Materials, Inc.Inventors: Joseph Yudovsky, Tatsuya Sato, Kenric Choi, Anh N. Nguyen, Faruk Gungor
-
Patent number: 8187381Abstract: Methods and apparatus for a gas delivery assembly are provided herein. In some embodiments, the gas delivery assembly includes a gas inlet funnel having a first volume and one or more gas conduits; each gas conduit having an inlet and an outlet for facilitating the flow of a gas therethrough and into the first volume, wherein each gas conduit has a second volume less than the first volume, and wherein each gas conduit has a cross-section that increases from a first cross-section proximate the inlet to a second cross-section proximate the outlet, wherein the second cross-section is non-circular. In some embodiments, each conduit has a longitudinal axis that intersects a central axis of the gas inlet funnel.Type: GrantFiled: August 22, 2008Date of Patent: May 29, 2012Assignee: Applied Materials, Inc.Inventors: Kedarnath Sangam, Anh N. Nguyen
-
Publication number: 20110223334Abstract: Embodiments of the invention relate to apparatus and methods for depositing materials on substrates during atomic layer deposition processes. In one embodiment, a chamber lid assembly comprises a channel having an upper portion and a lower portion, wherein the channel extends along a central axis, a housing having an inner region and at least partially defining two or more annular channels, an insert disposed in the inner region and defining the upper portion, the upper portion fluidly coupled with the two or more annular channels, and a tapered bottom surface extending from the bottom portion of the channel to a peripheral portion of the chamber lid assembly.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: APPLIED MATERIALS, INC.Inventors: Joseph Yudovsky, Anh N. Nguyen, Tai T. Ngo
-
Patent number: 7947131Abstract: Embodiments of the invention generally provide apparatus and method for detecting and controlling edge bevel removal of a semiconductor substrate. One embodiment of the present invention provides an apparatus for inspecting a rotating substrate. The apparatus comprises a substrate support configured to support the rotating substrate on a back side and rotate the substrate about a central axis, and a sensor positioned above the substrate support, the sensor being configured to inspect a front side of the rotating substrate while moving simultaneously radially across the substrate.Type: GrantFiled: May 19, 2010Date of Patent: May 24, 2011Assignee: Applied Materials, Inc.Inventors: Chen-An Chen, Anh N. Nguyen, Manoocher Birang
-
Publication number: 20100294199Abstract: Embodiments of the invention provide improved apparatus for depositing layers on substrates, such as by chemical vapor deposition (CVD). The inventive apparatus disclosed herein may advantageously facilitate one or more of depositing films having reduced film thickness non-uniformity within a given process chamber, improved particle performance (e.g., reduced particles on films formed in the process chamber), chamber-to-chamber performance matching amongst a plurality of process chambers, and improved process chamber serviceability.Type: ApplicationFiled: April 20, 2010Publication date: November 25, 2010Applicant: APPLIED MATERIALS, INC.Inventors: BINH TRAN, ANQING CUI, BERNARD L. HWANG, SON T. NGUYEN, ANH N. NGUYEN, SEAN M. SEUTTER, XIANZHI TAO
-
Publication number: 20100279516Abstract: Embodiments of the invention contemplate a method, apparatus and system that are used to support and position a substrate on a surface that is at a different temperature than the initial, or incoming, substrate temperature. Embodiments of the invention may also include a method of controlling the transfer of heat between a substrate and substrate support positioned in a processing chamber. The apparatus and methods described herein generally may also provide an inexpensive and simple way of accurately positioning a substrate on a substrate support that is positioned in a semiconductor processing chamber. Substrate processing chambers that can benefit from the various embodiments described herein include, but are not limited to RTP, CVD, PVD, ALD, plasma etching, and/or laser annealing chambers.Type: ApplicationFiled: July 19, 2010Publication date: November 4, 2010Inventors: Chen-An Chen, Anh N. Nguyen, Manoocher Birang
-
Publication number: 20100218784Abstract: Embodiments of the invention generally provide apparatus and method for detecting and controlling edge bevel removal of a semiconductor substrate. One embodiment of the present invention provides an apparatus for inspecting a rotating substrate. The apparatus comprises a substrate support configured to support the rotating substrate on a back side and rotate the substrate about a central axis, and a sensor positioned above the substrate support, the sensor being configured to inspect a front side of the rotating substrate while moving simultaneously radially across the substrate.Type: ApplicationFiled: May 19, 2010Publication date: September 2, 2010Inventors: CHEN-AN CHEN, Anh N. Nguyen, Manoocher Birang
-
Publication number: 20100048032Abstract: Methods and apparatus for a gas delivery assembly are provided herein. In some embodiments, the gas delivery assembly includes a gas inlet funnel having a first volume and one or more gas conduits; each gas conduit having an inlet and an outlet for facilitating the flow of a gas therethrough and into the first volume, wherein each gas conduit has a second volume less than the first volume, and wherein each gas conduit has a cross-section that increases from a first cross-section proximate the inlet to a second cross-section proximate the outlet, wherein the second cross-section is non-circular. In some embodiments, each conduit has a longitudinal axis that intersects a central axis of the gas inlet funnel.Type: ApplicationFiled: August 22, 2008Publication date: February 25, 2010Applicant: APPLIED MATERIALS, INC.Inventors: KEDARNATH SANGAM, Anh N. Nguyen
-
Publication number: 20090283252Abstract: A method and apparatus for heating or cooling a fluid. An inlet conduit coupled to a plurality of distribution nozzles in fluid communication with a channel at the periphery of the apparatus. An insert and a sleeve cooperatively define a thin gap, in fluid communication with the channel, through which the fluid flows. Thermal inserts near the thin gap generate heat flux into or out of the fluid, which exits through an outlet conduit.Type: ApplicationFiled: May 16, 2008Publication date: November 19, 2009Inventors: Tao Hou, Son T. Nguyen, Kenric Choi, Anh N. Nguyen
-
Patent number: 7520939Abstract: A method and apparatus for cleaning the bevel of a semiconductor substrate. The apparatus generally includes a cell body having upstanding walls and a fluid drain basin, a rotatable vacuum chuck positioned centrally positioned in the fluid drain basin, and at least 3 substrate centering members positioned at equal radial increments around the rotatable vacuum chuck. The substrate centering members include a vertically oriented shaft having a longitudinal axis extending therethrough, a cap member positioned over an upper terminating end of the shaft, a raised central portion formed onto the cap member, the raised central portion having a maximum thickness at a location the coincides with the longitudinal axis, and a substrate centering post positioned on the cap member radially outward of the raised central portion, an upper terminating end of the substrate centering post extending from the cap member to a distance that exceeds the maximum thickness.Type: GrantFiled: April 16, 2004Date of Patent: April 21, 2009Assignee: Applied Materials, Inc.Inventors: Henry Ho, Lily L. Pang, Anh N. Nguyen, Alexander N. Lerner
-
Patent number: 7222636Abstract: The present invention relates to a method and apparatus for delivery of reactants to a substrate processing chamber. An electronically controlled valve assembly is provided for rapid delivery of pulses of reactants to the chamber. The valve assembly comprises a valve body having a valve seat, and at least one gas inlet and one gas outlet below the seat. The piston is selectively movable within the valve body to open and close the valve. In order to actuate the valve assembly, current is sent to a solenoid coil within the valve body. The solenoid coil generates a magnetic field that acts on an adjacent magnetic member. The solenoid coil, magnetic member and piston are arranged such that relative movement of the coil and magnetic member cause the piston to be moved relative to the valve seat.Type: GrantFiled: August 20, 2003Date of Patent: May 29, 2007Assignee: Applied Materials, Inc.Inventors: Anh N. Nguyen, Joseph Yudovsky, Mark A. Alexander, Hungsuk A. Yoon, Chiliang L. Chen
-
Patent number: 7223323Abstract: Embodiments of the invention generally provide an electrochemical plating system. The plating system includes a substrate loading station positioned in communication with a mainframe processing platform, at least one substrate plating cell positioned on the mainframe, at least one substrate bevel cleaning cell positioned on the mainframe, and a stacked substrate annealing station positioned in communication with at least one of the mainframe and the loading station, each chamber in the stacked substrate annealing station having a heating plate, a cooling plate, and a substrate transfer robot therein.Type: GrantFiled: July 8, 2003Date of Patent: May 29, 2007Assignee: Applied Materials, Inc.Inventors: Michael X. Yang, Ming Xi, Russell C. Ellwanger, Eric B. Britcher, Bernardo Donoso, Lily L. Pang, Svetlana Sherman, Henry Ho, Anh N. Nguyen, Alexander N. Lerner, Allen L. D'Ambra, Arulkumar Shanmugasundram, Tetsuya Ishikawa, Yevgeniy Rabinovich, Dmitry Lubomirsky, Yeuk-Fai Edwin Mok, Son T. Nguyen
-
Patent number: 7201803Abstract: A valve control system for a semiconductor processing chamber includes a system control computer and a plurality of electrically controlled valves associated with the processing chamber. The system further includes a programmable logic controller in communication with the system control computer and operatively coupled to the electrically controlled valves. The refresh time for control of the valves may be less than 10 milliseconds. Consequently, valve control operations do not significantly extend the period of time required for highly repetitive cycling in atomic layer deposition processes. A hardware interlock may be implemented through the output power supply of the programmable logic controller.Type: GrantFiled: December 9, 2003Date of Patent: April 10, 2007Assignee: Applied Materials, Inc.Inventors: Siqing Lu, Yu Chang, Dongxi Sun, Vinh Dang, Michael X. Yang, Anzhong (Andrew) Chang, Anh N. Nguyen, Ming Xi
-
Publication number: 20040206375Abstract: A method and apparatus for cleaning the bevel of a semiconductor substrate. The apparatus generally includes a cell body having upstanding walls and a fluid drain basin, a rotatable vacuum chuck positioned centrally positioned in the fluid drain basin, and at least 3 substrate centering members positioned at equal radial increments around the rotatable vacuum chuck. The substrate centering members include a vertically oriented shaft having a longitudinal axis extending therethrough, a cap member positioned over an upper terminating end of the shaft, a raised central portion formed onto the cap member, the raised central portion having a maximum thickness at a location the coincides with the longitudinal axis, and a substrate centering post positioned on the cap member radially outward of the raised central portion, an upper terminating end of the substrate centering post extending from the cap member to a distance that exceeds the maximum thickness.Type: ApplicationFiled: April 16, 2004Publication date: October 21, 2004Applicant: Applied Materials, Inc.Inventors: Henry Ho, Lily L. Pang, Anh N. Nguyen, Alexander N. Lerner
-
Publication number: 20040143370Abstract: A valve control system for a semiconductor processing chamber includes a system control computer and a plurality of electrically controlled valves associated with the processing chamber. The system further includes a programmable logic controller in communication with the system control computer and operatively coupled to the electrically controlled valves. The refresh time for control of the valves may be less than 10 milliseconds. Consequently, valve control operations do not significantly extend the period of time required for highly repetitive cycling in atomic layer deposition processes. A hardware interlock may be implemented through the output power supply of the programmable logic controller.Type: ApplicationFiled: December 9, 2003Publication date: July 22, 2004Inventors: Siqing Lu, Yu Chang, Dongxi Sun, Vinh Dang, Michael X. Yang, Anzhong Chang, Anh N. Nguyen, Ming Xi
-
Patent number: 6734020Abstract: A valve control system for a semiconductor processing chamber includes a system control computer and a plurality of electrically controlled valves associated with the processing chamber. The system further includes a programmable logic controller in communication with the system control computer and operatively coupled to the electrically controlled valves. The refresh time for control of the valves may be less than 10 milliseconds. Consequently, valve control operations do not significantly extend the period of time required for highly repetitive cycling in atomic layer deposition processes. A hardware interlock may be implemented through the output power supply of the programmable logic controller.Type: GrantFiled: March 7, 2001Date of Patent: May 11, 2004Assignee: Applied Materials, Inc.Inventors: Siqing Lu, Yu Chang, Dongxi Sun, Vinh Dang, Michael X. Yang, Anzhong Chang, Anh N. Nguyen, Ming Xi
-
Publication number: 20040016637Abstract: Embodiments of the invention generally provide an electrochemical plating system. The plating system includes a substrate loading station positioned in communication with a mainframe processing platform, at least one substrate plating cell positioned on the mainframe, at least one substrate bevel cleaning cell positioned on the mainframe, and a stacked substrate annealing station positioned in communication with at least one of the mainframe and the loading station, each chamber in the stacked substrate annealing station having a heating plate, a cooling plate, and a substrate transfer robot therein.Type: ApplicationFiled: July 8, 2003Publication date: January 29, 2004Applicant: APPLIED MATERIALS, INC.Inventors: Michael X. Yang, Ming Xi, Russell C. Ellwanger, Eric B. Britcher, Bernardo Donoso, Lily L. Pang, Svetlana Sherman, Henry Ho, Anh N. Nguyen, Alexander N. Lerner, Allen L. D'Ambra, Arulkumar Shanmugasundram, Tetsuya Ishikawa, Yevgeniy Rabinovich, Dmitry Lubomirsky, Yeuk-Fai Edwin Mok, Son T. Nguyen
-
Patent number: 6660126Abstract: A lid for a semiconductor system, an exemplary embodiment of which includes a support having opposed first and second opposed surfaces. A valve is coupled to the first surface. A baffle plate is mounted to the second surface. The valve is coupled to the support to direct a flow of fluid along a path in original direction and at an injection velocity. The baffle plate is disposed in the path to disperse the flow of fluid in a plane extending transversely to the original direction. In one embodiment the valve is mounted to a W-seal that is in turn mounted to the first surface of the support.Type: GrantFiled: March 2, 2001Date of Patent: December 9, 2003Assignee: Applied Materials, Inc.Inventors: Anh N. Nguyen, Michael X. Yang, Ming Xi, Hua Chung, Anzhong Chang, Xiaoxiong Yuan, Siqing Lu
-
Publication number: 20030116087Abstract: A lid assembly and a method for ALD is provided. In one aspect, the lid assembly includes a lid plate having an upper and lower surface, a manifold block disposed on the upper surface having one or more cooling channels formed therein, and one or more valves disposed on the manifold block. The lid assembly also includes a distribution plate disposed on the lower surface having a plurality of apertures and one or more openings formed there-through, and at least two isolated flow paths formed within the lid plate, manifold block, and distribution plate. A first flow path of the at least two isolated flow paths is in fluid communication with the one or more openings and a second flow path of the at least two isolated flow paths is in fluid communication with the plurality of apertures.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Inventors: Anh N. Nguyen, Steve H. Chiao, Xiaoxiong Yuan, Lawrence Chung-Lai Lei, Ming Xi, Michael X. Yang, Sean M. Seutter, Toshio Itoh