Patents by Inventor Alexander N Lerner

Alexander N Lerner 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: 20090163042
    Abstract: Embodiments of the present invention provide apparatus and method for improving gas distribution during thermal processing. One embodiment of the present invention provides an apparatus for processing a substrate comprising a chamber body defining a processing volume, a substrate support disposed in the processing volume, wherein the substrate support is configured to support and rotate the substrate, a gas inlet assembly coupled to an inlet of the chamber body and configured to provide a first gas flow to the processing volume, and an exhaust assembly coupled to an outlet of the chamber body, wherein the gas inlet assembly and the exhaust assembly are disposed on opposite sides of the chamber body, and the exhaust assembly defines an exhaust volume configured to extend the processing volume.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Ming-Kuei (Michael) Tseng, Norman Tam, Yoshitaka Yokota, Agus Tjandra, Robert Navasca, Medhran Behdjat, Sundar Ramamurthy, Kedarnath Sangam, Alexander N. Lerner
  • Publication number: 20090155025
    Abstract: A lift pin is provided for manipulating a substrate above a support surface of a substrate support and uniformly transferring heat from the substrate support to the substrate. The lift pin includes a pin shaft. The pin shaft includes a cross-section having at least three equal edges and round corners configured alternatively. A pin head is an end portion of the pin shaft, wherein the pin head has a convex support surface larger than the cross-section of the pin shaft. A flat portion is disposed on a central area of the convex support surface for directly contacting the substrate.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventors: ALEXANDER N. LERNER, Mehran Behdjat, Paula Valdivia
  • Patent number: 7520939
    Abstract: 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: Grant
    Filed: April 16, 2004
    Date of Patent: April 21, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Henry Ho, Lily L. Pang, Anh N. Nguyen, Alexander N. Lerner
  • Patent number: 7513062
    Abstract: In a first aspect, a first method of drying a substrate is provided. The first method includes the steps of (1) lifting a substrate through an air/fluid interface at a first rate; (2) directing a drying vapor at the air/fluid interface during lifting of the substrate; and (3) while a portion of the substrate remains in the air/fluid interface, reducing a rate at which a remainder of the substrate is lifted through the air/fluid interface to a second rate. The drying vapor may form an angle of about 23° with the air/fluid interface and/or the second rate may be about 2.5 mm/sec.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: April 7, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Younes Achkire, Alexander N Lerner, Boris Govzman, Boris Fishkin, Michael N Sugarman, Rashid A Mavliev, Haoquan Fang, Shijian Li, Guy E Shirazi, Jianshe Tang
  • Publication number: 20090045182
    Abstract: Embodiments of the present invention provide method and apparatus for annealing semiconductor substrates. One embodiment of the present invention provides a semiconductor processing chamber comprising a first substrate support configured to support a substrate, a second substrate support configured to support a substrate, a shuttle coupled to the first substrate support and configured to move the first substrate support between a processing zone and a first loading zone, wherein the processing zone having a processing volume configured to alternately accommodating the first substrate support and the second substrate support.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Inventors: ALEXANDER N. LERNER, Timothy N. Thomas, Sundar Ramamurthy
  • Publication number: 20080280453
    Abstract: Embodiments of the invention contemplate a method, apparatus and system that are used to support, position, and rotate a substrate during processing. 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 remove the need for complex, costly and often unreliable components that would be required to accurately position and rotate a substrate during one or more processing steps, such as an rapid thermal processing (RTP) process, a chemical vapor deposition (CVD) process, a physical vapor deposition (PVD) process, atomic layer deposition (ALD) process, dry etching process, wet clean, and/or laser annealing process.
    Type: Application
    Filed: January 21, 2008
    Publication date: November 13, 2008
    Inventors: Blake KOELMEL, Alexander N. LERNER, Joseph M. RANISH, Kedarnath SANGAM, Khurshed SORABJI
  • Publication number: 20080276864
    Abstract: An apparatus and method for supporting, positioning and rotating a substrate are provided. In one embodiment, a support assembly for supporting a substrate includes an upper base plate and a lower base plate. The substrate is floated on a thin layer of air over the upper base plate. A positioning assembly includes a plurality of air bearing edge rollers or air flow pockets used to position the substrate in a desired orientation inside above the upper base plate. A plurality of slanted apertures or air flow pockets are configured in the upper base plate for flowing gas therethrough to rotate the substrate to ensure uniform heating during processing.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventors: BLAKE KOELMEL, Alexander N. Lerner, Joseph M. Ranish, Kedarnath Sangam, Khurshed Sorabji
  • Publication number: 20080169282
    Abstract: Apparatus and methods for achieving uniform heating or cooling of a substrate during a rapid thermal process are disclosed. More particularly, apparatus and methods for controlling the temperature of an edge ring supporting a substrate and/or a reflector plate during a rapid thermal process to improve temperature uniformity across the substrate are disclosed, which include a thermal mass or plate adjacent the edge ring to heat or cool the edge ring.
    Type: Application
    Filed: March 25, 2008
    Publication date: July 17, 2008
    Inventors: KHURSHED SORABJI, Alexander N. Lerner, Joseph M. Ranish, Aaron M. Hunter, Bruce Adams, Mehran Behdjat, Rajesh S. Ramanujam
  • Publication number: 20080141556
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Application
    Filed: October 26, 2007
    Publication date: June 19, 2008
    Inventors: KHURSHED SORABJI, Alexander N. Lerner
  • Publication number: 20080142497
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Inventors: Khurshed Sorabji, Alexander N. Lerner
  • Patent number: 7378618
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 27, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Khurshed Sorabji, Alexander N. Lerner
  • Publication number: 20070221640
    Abstract: The present invention generally describes one ore more apparatuses and various methods that are used to perform an annealing process on desired regions of a substrate. In one embodiment, an amount of energy is delivered to the surface of the substrate to preferentially melt certain desired regions of the substrate to remove unwanted damage created from prior processing steps (e.g., crystal damage from implant processes), more evenly distribute dopants in various regions of the substrate, and/or activate various regions of the substrate. The preferential melting processes will allow more uniform distribution of the dopants in the melted region, due to the increased diffusion rate and solubility of the dopant atoms in the molten region of the substrate. The creation of a melted region thus allows: 1) the dopant atoms to redistribute more uniformly, 2) defects created in prior processing steps to be removed, and 3) regions that have hyper-abrupt dopant concentrations to be formed.
    Type: Application
    Filed: July 25, 2006
    Publication date: September 27, 2007
    Inventors: Dean Jennings, Alexander N. Lerner, Abhilash Mayur, Stephen Moffatt, Timothy N. Thomas
  • Patent number: 7223323
    Abstract: 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: Grant
    Filed: July 8, 2003
    Date of Patent: May 29, 2007
    Assignee: 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: 6865937
    Abstract: Methods and apparatus are provided for increasing the safety of a clogged or failed exhaust system. In accordance with a first embodiment, an apparatus is provided that includes (1) a tank adapted to contain a processing fluid; (2) an exhaust system coupled to the tank and adapted to exhaust a gas from the tank, the gas including a hazardous vapor of the processing fluid; (3) a sensor coupled to the exhaust system and adapted to detect a rate at which gas is exhausted from the tank; and (4) a fluid supply mechanism adapted to supply a diluting fluid to the tank so as to dilute the processing fluid contained by the tank if the rate at which gas is exhausted from the tank is less than a predetermined rate. Systems, methods and computer program products are provided in accordance with this and other embodiments.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: March 15, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Alexander N Lerner, Harshad M Borgaonkar
  • Publication number: 20040206375
    Abstract: 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: Application
    Filed: April 16, 2004
    Publication date: October 21, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Henry Ho, Lily L. Pang, Anh N. Nguyen, Alexander N. Lerner
  • Publication number: 20040016637
    Abstract: 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: Application
    Filed: July 8, 2003
    Publication date: January 29, 2004
    Applicant: 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
  • Publication number: 20020187742
    Abstract: Methods and apparatus are provided for increasing the safety of a clogged or failed exhaust system. In accordance with a first embodiment, an apparatus is provided that includes (1) a tank adapted to contain a processing fluid; (2) an exhaust system coupled to the tank and adapted to exhaust a gas from the tank, the gas including a hazardous vapor of the processing fluid; (3) a sensor coupled to the exhaust system and adapted to detect a rate at which gas is exhausted from the tank; and (4) a fluid supply mechanism adapted to supply a diluting fluid to the tank so as to dilute the processing fluid contained by the tank if the rate at which gas is exhausted from the tank is less than a predetermined rate. Systems, methods and computer program products are provided in accordance with this and other embodiments.
    Type: Application
    Filed: May 13, 2002
    Publication date: December 12, 2002
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Alexander N. Lerner, Harshad M. Borgaonkar