Patents by Inventor Suhail Anwar

Suhail Anwar 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: 20080132080
    Abstract: A method of PECVD deposition of silicon-containing films has been discovered and further developed. The method is particularly useful when the films are deposited on substrates having surface areas which are larger than 25,000 cm2. The method prevents the deposition of partially reacted silicon-containing species which form a powdery material or haze (contaminant compound) on the substrate surface. The contaminant compounds are avoided by assuring that the power applied to form a plasma in the PECVD process is maintained, at least at a minimal level, until reactive silicon-containing precursor gases present above the surface of the substrate have been reacted or evacuated from the plasma processing area.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Inventors: Suhail Anwar, Chung-Hee Park, Beom Soo Park, Han Byoul Kim, Soo Young Choi, John M. White
  • Publication number: 20080118236
    Abstract: Embodiments of the invention include a heated load lock chamber. In one embodiment, a heated load lock chamber includes a chamber body having a plurality of lamp assembles disposed at least partially therein. Each lamp assembly includes a transmissive tube housing a lamp. The transmissive tube extends into the chamber body and provides a pressure barrier isolating the lamp from the interior volume of the load lock chamber. In another embodiment, an open end of the transmissive tube extends through a sidewall of the chamber body. A closed end of the transmissive tube is surrounded by the interior volume of the chamber body and is supported below a top of the chamber body in a spaced apart relation. The open end of the tube is sealed to the sidewall of the chamber body such that the interior of the tube is open to atmosphere.
    Type: Application
    Filed: July 24, 2007
    Publication date: May 22, 2008
    Inventors: Suhail Anwar, Jae-Chull Lee, Shinichi Kurita
  • Publication number: 20080087214
    Abstract: Embodiments of the invention include a load lock chamber having a decoupled slit valve door seal compartment. In one embodiment, a load lock chamber includes a main assembly, a first slit valve door seal compartment and a seal assembly. The main assembly has a substrate transfer cavity formed therein. Two substrate access ports are formed through the main assembly and fluidly couple to the cavity. The first slit valve door seal compartment has an aperture disposed adjacent to and aligned with one of the access ports. The first slit valve door seal compartment is decoupled from the main assembly. The seal assembly couples the first slit valve door seal compartment to the main assembly.
    Type: Application
    Filed: July 24, 2007
    Publication date: April 17, 2008
    Inventors: Jae-Chull Lee, Suhail Anwar, Shinichi Kurita
  • Publication number: 20080061793
    Abstract: Method and apparatus for detecting or suppressing electrical arcing or other abnormal change in the electrical impedance of a load connected to a power source. Preferably the load is a plasma chamber used for manufacturing electronic components such as semiconductors and flat panel displays. Arcing is detected by monitoring one or more sensors. Each sensor either responds to a characteristic of the electrical power being supplied by an electrical power source to the plasma or is coupled to the plasma chamber so as to respond to an electromagnetic condition within the chamber. Arcing is suppressed by reducing the power output for a brief period. Then the power source increases its power output, preferably to its original value. If the arcing resumes, the power source repeats the steps of reducing and then restoring the power output.
    Type: Application
    Filed: October 27, 2007
    Publication date: March 13, 2008
    Inventors: Suhail Anwar, Remegio Manacio, Chung-Hee Park, Dong-Kil Yim, Soo Choi
  • Publication number: 20070281090
    Abstract: A method and apparatus for forming solar panels from n-doped silicon, p-doped silicon, intrinsic amorphous silicon, and intrinsic microcrystalline silicon using a cluster tool is disclosed. The cluster tool comprises at least one load lock chamber and at least one transfer chamber. When multiple clusters are used, at least one buffer chamber may be present between the clusters. A plurality of processing chambers are attached to the transfer chamber. As few as five and as many as thirteen processing chambers can be present.
    Type: Application
    Filed: April 11, 2007
    Publication date: December 6, 2007
    Inventors: Shinichi Kurita, Takako Takehara, Suhail Anwar
  • Publication number: 20070280816
    Abstract: Embodiments of the invention include a load lock chamber, a processing system having a load lock chamber and a method for transferring substrates between atmospheric and vacuum environments. In one embodiment, the method includes maintaining a processed substrate within a transfer cavity formed in a chamber body for two venting cycles. In another embodiment, the method includes transferring a substrate from a transfer cavity to a heating cavity formed in the chamber body, and heating the substrate in the heating cavity. In another embodiment, a load lock chamber includes a chamber body having substrate support disposed in a transfer cavity. The substrate support is movable between a first elevation and a second elevation. A plurality of grooves are formed in at least one of a ceiling or floor of the transfer cavity and configured to receive at least a portion of the substrate support when located in the second elevation.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 6, 2007
    Inventors: Shinichi Kurita, Suhail Anwar, Jae-Chull Lee
  • Patent number: 7292045
    Abstract: Method and apparatus for detecting or suppressing electrical arcing or other abnormal change in the electrical impedance of a load connected to a power source. Preferably the load is a plasma chamber used for manufacturing electronic components such as semiconductors and flat panel displays. Arcing is detected by monitoring one or more sensors. Each sensor either responds to a characteristic of the electrical power being supplied by an electrical power source to the plasma or is coupled to the plasma chamber so as to respond to an electromagnetic condition within the chamber. Arcing is suppressed by reducing the power output for a brief period. Then the power source increases its power output, preferably to its original value. If the arcing resumes, the power source repeats the steps of reducing and then restoring the power output.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: November 6, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Suhail Anwar, Remegio Manacio, Chung-Hee Park, Dong-Kil Yim, Soo Young Choi
  • Publication number: 20070197062
    Abstract: Systems, methods, and apparatus are provided for including a chip embedded in components of electronic device manufacturing systems adapted to sense, store, and/or update at least one of identification, operational-related and process-related information associated with the components. In other aspects of the invention, a processing chamber component having an embedded chip with storage capacity is adapted to record at least one of identification, operational-related and process-related information associated with the component; and to communicate the information from the chip to enable determination of an operational state of the component. Numerous other aspects are disclosed.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 23, 2007
    Inventors: William Bagley, Paohuei Lee, Suhail Anwar, Janusz Jozwiak
  • Publication number: 20070166133
    Abstract: Embodiments of the invention include a chamber body having at least one of a top or bottom decoupled from the sidewalls of the chamber body. The invention is suitable for use as a load lock chamber, substrate transfer chamber and vacuum processing chambers, among others.
    Type: Application
    Filed: January 13, 2006
    Publication date: July 19, 2007
    Inventors: Jae-Chull Lee, Shinichi Kurita, John M. White, Suhail Anwar
  • Publication number: 20060236934
    Abstract: Embodiments of a gas diffuser plate for distributing gas in a processing chamber are provided. The gas distribution plate includes a diffuser plate having an upstream side and a downstream side, and a plurality of gas passages passing between the upstream and downstream sides of the diffuser plate. The gas passages include hollow cathode cavities at the downstream side to enhance plasma ionization. The depths, the diameters, the surface area and density of hollow cathode cavities of the gas passages that extend to the downstream end can be gradually increased from the center to the edge of the diffuser plate to improve the film thickness and property uniformity across the substrate. The increasing diameters, depths and surface areas from the center to the edge of the diffuser plate can be created by bending the diffuser plate toward downstream side, followed by machining out the convex downstream side. Bending the diffuser plate can be accomplished by a thermal process or a vacuum process.
    Type: Application
    Filed: June 22, 2006
    Publication date: October 26, 2006
    Inventors: Soo Choi, John White, Qunhua Wang, Li Hou, Ki Kim, Shinichi Kurita, Tae Won, Suhail Anwar, Beom Park, Robin Tiner
  • Publication number: 20060049831
    Abstract: Method and apparatus for detecting or suppressing electrical arcing or other abnormal change in the electrical impedance of a load connected to a power source. Preferably the load is a plasma chamber used for manufacturing electronic components such as semiconductors and flat panel displays. Arcing is detected by monitoring one or more sensors. Each sensor either responds to a characteristic of the electrical power being supplied by an electrical power source to the plasma or is coupled to the plasma chamber so as to respond to an electromagnetic condition within the chamber. Arcing is suppressed by reducing the power output for a brief period. Then the power source increases its power output, preferably to its original value. If the arcing resumes, the power source repeats the steps of reducing and then restoring the power output.
    Type: Application
    Filed: June 10, 2005
    Publication date: March 9, 2006
    Inventors: Suhail Anwar, Remegio Manacio, Chung-Hee Park, Dong-Kil Yim, Soo Choi
  • Publication number: 20060027327
    Abstract: In certain aspects, a plasma chamber is provided that has (1) a chamber size of at least about 1.8 by 2.0 meters; and (2) an effective inductance having an inductive reactance of not more than about 12-15 ohms. The plasma chamber may be used, for example, to process substrates used for flat panel displays. Numerous other aspects are provided.
    Type: Application
    Filed: July 11, 2005
    Publication date: February 9, 2006
    Inventors: Carl Sorensen, John White, Suhail Anwar
  • Publication number: 20060017386
    Abstract: In certain embodiments, an apparatus for providing a fixed impedance transformation network for driving a plasma chamber includes a pre-match network adapted to couple between an Active RF match network and a plasma chamber load associated with the plasma chamber. The pre-match network includes (1) a first capacitive element; (2) an inductive element connected in parallel with the first capacitive element to form a parallel circuit that presents a stepped-up impedance to an output of the Active RF match network such that a voltage required to drive the plasma chamber load is reduced; and (3) a second capacitive element coupled to the parallel circuit and adapted to couple to the plasma chamber load. The second capacitive element reduces or cancels at least in part a reactance corresponding to an inductance associated with the plasma chamber load. Numerous other aspects are provided.
    Type: Application
    Filed: July 11, 2005
    Publication date: January 26, 2006
    Inventors: Carl Sorensen, John White, Suhail Anwar
  • Publication number: 20050251990
    Abstract: Embodiments of a gas diffuser plate for distributing gas in a processing chamber are provided. The gas distribution plate includes a diffuser plate having an upstream side and a downstream side, and a plurality of gas passages passing between the upstream and downstream sides of the diffuser plate. The gas passages include hollow cathode cavities at the downstream side to enhance plasma ionization. The depths, the diameters, the surface area and density of hollow cathode cavities of the gas passages that extend to the downstream end can be gradually increased from the center to the edge of the diffuser plate to improve the film thickness and property uniformity across the substrate. The increasing diameters, depths and surface areas from the center to the edge of the diffuser plate can be created by bending the diffuser plate toward downstream side, followed by machining out the convex downstream side. Bending the diffuser plate can be accomplished by a thermal process or a vacuum process.
    Type: Application
    Filed: July 12, 2004
    Publication date: November 17, 2005
    Inventors: Soo Young Choi, John White, Qunhua Wang, Li Hou, Ki Kim, Shinichi Kurita, Tae Won, Suhail Anwar, Beom Park, Robin Tiner
  • Publication number: 20050220604
    Abstract: An apparatus for supporting a substrate within a processing chamber is provided. In one aspect, a substrate support member is provided comprising a housing having a bore formed therethrough, a support pin at least partially disposed within the bore, and a plurality of bearing elements disposed about the housing. In one aspect, the bearing elements comprise a roller having a central bore formed therethrough, a contoured outer surface, and a shaft at least partially disposed through the central bore. In another aspect, the bearing elements comprise a ball assembly comprising a larger spherical member and four smaller spherical members arranged about the larger spherical member.
    Type: Application
    Filed: January 27, 2005
    Publication date: October 6, 2005
    Inventors: Shinichi Kurita, Suhail Anwar, Toshio Kiyotake
  • Publication number: 20050180737
    Abstract: An apparatus for supporting a substrate within a processing chamber is provided. In one aspect, a substrate support member is provided comprising a housing having a bore formed therethrough, a support pin at least partially disposed within the bore, and a plurality of bearing elements disposed about the housing. In one aspect, the bearing elements comprise a roller having a central bore formed therethrough, a contoured outer surface, and a shaft at least partially disposed through the central bore. In another aspect, the bearing elements comprise a ball assembly comprising a larger spherical member and four smaller spherical members arranged about the larger spherical member.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 18, 2005
    Inventors: Shinichi Kurita, Suhail Anwar, Toshio Kiyotake
  • Publication number: 20050063800
    Abstract: A method and apparatus for supporting a substrate is generally provided. In one aspect, an apparatus for supporting a substrate includes a support plate having a first body disposed proximate thereto. A first pushing member is radially coupled to the first body and adapted to urge the substrate in a first direction parallel to the support plate when the first body rotates. In another aspect, a load lock chamber having a substrate support that supports a substrate placed thereon includes a cooling plate that is moved to actuate at least one alignment mechanism. The alignment mechanism includes a pushing member that urges the substrate in a first direction towards a center of the support. The pushing member may additionally rotate about an axis perpendicular to the first direction.
    Type: Application
    Filed: November 16, 2004
    Publication date: March 24, 2005
    Inventors: Shinichi Kurita, Wendell Blonigan, Suhail Anwar, Toshio Kiyotake, Hung Nguyen
  • Patent number: 6824343
    Abstract: A method and apparatus for supporting a substrate is generally provided. In one aspect, an apparatus for supporting a substrate includes a support plate having a first body disposed proximate thereto. A first pushing member is radially coupled to the first body and adapted to urge the substrate in a first direction parallel to the support plate when the first body rotates. In another aspect, a load lock chamber having a substrate support that supports a substrate placed thereon includes a cooling plate that is moved to actuate at least one alignment mechanism. The alignment mechanism includes a pushing member that urges the substrate in a first direction towards a center of the support. The pushing member may additionally rotate about an axis perpendicular to the first direction.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: November 30, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Shinichi Kurita, Wendell T. Blonigan, Suhail Anwar, Toshio Kiyotake, Hung T. Nguyen
  • Publication number: 20030161706
    Abstract: A method and apparatus for supporting a substrate is generally provided. In one aspect, an apparatus for supporting a substrate includes a support plate having a first body disposed proximate thereto. A first pushing member is radially coupled to the first body and adapted to urge the substrate in a first direction parallel to the support plate when the first body rotates. In another aspect, a load lock chamber having a substrate support that supports a substrate placed thereon includes a cooling plate that is moved to actuate at least one alignment mechanism. The alignment mechanism includes a pushing member that urges the substrate in a first direction towards a center of the support. The pushing member may additionally rotate about an axis perpendicular to the first direction.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 28, 2003
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Shinichi Kurita, Wendell T. Blonigan, Suhail Anwar, Toshio Kiyotake, Hung T. Nguyen