Patents by Inventor Lawrence Tom

Lawrence Tom 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: 7259548
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: August 21, 2007
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Patent number: 7180284
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: February 20, 2007
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Publication number: 20060261833
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Application
    Filed: July 24, 2006
    Publication date: November 23, 2006
    Inventors: Timothy Boyle, Wayne Richter, Ladd Johnson, Lawrence Tom
  • Patent number: 7098649
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: August 29, 2006
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Publication number: 20060119346
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Application
    Filed: October 4, 2005
    Publication date: June 8, 2006
    Inventors: Timothy Boyle, Wayne Richter, Ladd Johnson, Lawrence Tom
  • Patent number: 7002337
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: February 21, 2006
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Publication number: 20050116731
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Application
    Filed: January 7, 2005
    Publication date: June 2, 2005
    Inventors: Timothy Boyle, Wayne Richter, Ladd Johnson, Lawrence Tom
  • Patent number: 6861859
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contracts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: March 1, 2005
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Publication number: 20040263153
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Application
    Filed: July 27, 2004
    Publication date: December 30, 2004
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Publication number: 20040232928
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Application
    Filed: June 17, 2004
    Publication date: November 25, 2004
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Patent number: 6781394
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 24, 2004
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom
  • Patent number: 6771060
    Abstract: The invention provides a method of testing a circuit on a substrate. Generally speaking, a substrate is located in a transfer chuck, a surface of a test chuck is moved into contact with a substrate, the substrate is secured to the test chuck, the test chuck is moved relative to the transfer chuck so that the substrate moves off the transfer chuck, terminals on the substrate are moved into contact with contacts to electrically connect the circuit through the terminals and the contacts to an electric tester, signals are relayed through the terminal and the contacts between the electric tester and the circuit, the terminals are disengaged from the contacts, and the substrate is removed from the test chuck.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 3, 2004
    Assignee: Electroglas, Inc.
    Inventors: Timothy J. Boyle, Wayne E. Richter, Ladd T. Johnson, Lawrence A. Tom