Patents by Inventor Mark A. Stenholm

Mark A. Stenholm 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).

  • Patent number: 6599076
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: July 29, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall
  • Publication number: 20030002960
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Application
    Filed: August 19, 2002
    Publication date: January 2, 2003
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall
  • Publication number: 20030002959
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Application
    Filed: August 19, 2002
    Publication date: January 2, 2003
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall
  • Patent number: 6454519
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: September 24, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall, David Cheng
  • Patent number: 6454508
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: September 24, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall
  • Publication number: 20010014266
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Application
    Filed: May 1, 1998
    Publication date: August 16, 2001
    Inventors: MASATO M. TOSHIMA, PHIL M. SALZMAN, STEVEN C. MURDOCH, CHENG WANG, MARK A. STENHOLM, JAMES HOWARD, LEONARD HALL
  • Patent number: 5769588
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: June 23, 1998
    Assignee: Applied Materials, Inc.
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall, David Cheng
  • Patent number: 5186594
    Abstract: A workpiece loading interface is included within a workpiece processing system which processes workpieces, typically wafers, in a vacuum. The workpiece loading interface includes two separate chambers. Each chamber may be separately pumped down. Thus, while a first cassette of wafers, from a first chamber is being accessed, a second cassette of wafers may be loaded in the second chamber and the second chamber pumped down. Each chamber is designed to minimize intrusion to a clean room. Thus a door to each chamber has a mechanism which, when opening the door, first moves the door slightly away from an opening in the chamber and then the door is moved down parallel to the chamber. After the door is opened, a cassette of wafers is lowered through the opening in a motion much like a drawbridge. The cassette may be pivoted within the chamber when the position from which wafers are accessed from the cassette differs from the position from which the cassette is lowered out of the chamber.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: February 16, 1993
    Assignee: Applied Materials, Inc.
    Inventors: Masato M. Toshima, Phil M. Salzman, Steven C. Murdoch, Cheng Wang, Mark A. Stenholm, James Howard, Leonard Hall, David Cheng