Patents by Inventor Raymond J. Beffa

Raymond J. Beffa 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: 7276672
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a substantially unique identification (ID) code, such as a fuse ID, including automatically reading the ID code of each of the IC devices and sorting the IC devices in accordance with their automatically read ID codes, is disclosed.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: October 2, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Patent number: 7276926
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: October 2, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 7276927
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: October 2, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 7212020
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: May 1, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugen H. Cloud
  • Patent number: 7124050
    Abstract: A method of manufacturing IC devices from semiconductor wafers includes providing the wafers and fabricating ICs on the wafers. At probe, a unique fuse ID is stored in each IC, and an electronic wafer map is electronically stored for each wafer indicating the locations of good and bad ICs on the wafer and the fuse IDs of the ICs on the wafer. Each IC is then separated from its wafer to form an IC die, and the IC dice are assembled into IC devices. At the opens/shorts test at the end of assembly, the fuse ID of each IC in each device is automatically retrieved so the wafer map of the IC device may be accessed and evaluated to identify any IC devices containing bad ICs that have accidentally been assembled into IC devices. Any “bad” IC devices are discarded while remaining IC devices continue on to back-end testing.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: October 17, 2006
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Patent number: 7117063
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a fuse identification (ID) into those devices requiring enhanced reliability testing and those requiring standard testing includes storing fabrication deviation data, probe data, and test data in association with the fuse ID of each of the devices indicating each of the devices requires either enhanced reliability testing or standard testing. The fuse ID of each of the devices is then automatically read before, during, or after standard testing of the devices. The testing process requirement data stored in association with the fuse ID of each of the devices is then accessed, and the devices are sorted in accordance with the accessed data into those devices requiring enhanced reliability testing and those requiring standard testing.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: October 3, 2006
    Assignee: Micro Technology, Inc.
    Inventor: Raymond J. Beffa
  • Patent number: 7107117
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a fuse identification (ID) into those devices requiring enhanced reliability testing and those requiring standard testing includes storing fabrication deviation data, probe data, and test data in association with the fuse ID of each of the devices indicating each of the devices requires either enhanced reliability testing or standard testing. The fuse ID of each of the devices is then automatically read before, during, or after standard testing of the devices. The testing process requirement data stored in association with the fuse ID of each of the devices is then accessed, and the devices are sorted in accordance with the accessed data into those devices requiring enhanced reliability testing and those requiring standard testing.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: September 12, 2006
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Patent number: 7034561
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: April 25, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 6944567
    Abstract: A method of manufacturing IC devices from semiconductor wafers includes providing the wafers and fabricating ICs on the wafers. At probe, a unique fuse ID is stored in each IC, and an electronic wafer map is electronically stored for each wafer indicating the locations of good and bad ICs on the wafer and the fuse IDs of the ICs on the wafer. Each IC is then separated from its wafer to form an IC die, and the IC dice are assembled into IC devices. At the opens/shorts test at the end of assembly, the fuse ID of each IC in each device is automatically retrieved so the wafer map of the IC device may be accessed and evaluated to identify any IC devices containing bad ICs that have accidentally been assembled into IC devices. Any “bad” IC devices are discarded while remaining IC devices continue on to back-end testing.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: September 13, 2005
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Patent number: 6852999
    Abstract: A semiconductor wafer having dice that include circuitry that is placed into a mode when the circuitry receives an alternating signal having certain characteristics. The alternating signal may be supplied from a system controller through a probe, probe pad, and conductive path on the wafer. In a preferred embodiment, the conductive path simultaneously carries a VCC power signal and the alternating signal to the circuitry. However, the alternating signal may be carried on a conductive path different from the one carrying the VCC signal. A great deal of information may be conveyed through the alternating signal, making other signals unnecessary in controlling, testing, stressing, and repairing dice on the wafer. For example, clocking information may be conveyed through the alternating signal. The circuitry may be placed in different modes in response to different characteristics of the alternating signal. The alternating signal and a VCC power signal are received through a single contact on each die.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: February 8, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 6831475
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: December 14, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 6815968
    Abstract: A semiconductor wafer having dice that include circuitry that is placed into a mode when the circuitry receives an alternating signal having certain characteristics. The alternating signal may be supplied from a system controller through a probe, probe pad, and conductive path on the wafer.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: November 9, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Warren M. Farnworth, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 6788993
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a fuse identification (ID) into those devices requiring enhanced reliability testing and those requiring standard testing includes storing fabrication deviation data, probe data, and test data in association with the fuse ID of each of the devices indicating each of the devices requires either enhanced reliability testing or standard testing. The fuse ID of each of the devices is then automatically read before, during, or after standard testing of the devices. The testing process requirement data stored in association with the fuse ID of each of the devices is then accessed, and the devices are sorted in accordance with the accessed data into those devices requiring enhanced reliability testing and those requiring standard testing.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: September 7, 2004
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Publication number: 20040172152
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a fuse identification (ID) into those devices requiring enhanced reliability testing and those requiring standard testing includes storing fabrication deviation data, probe data, and test data in association with the fuse ID of each of the devices indicating each of the devices requires either enhanced reliability testing or standard testing. The fuse ID of each of the devices is then automatically read before, during, or after standard testing of the devices. The testing process requirement data stored in association with the fuse ID of each of the devices is then accessed, and the devices are sorted in accordance with the accessed data into those devices requiring enhanced reliability testing and those requiring standard testing.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Inventor: Raymond J. Beffa
  • Publication number: 20040130345
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 8, 2004
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Patent number: 6703573
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a substantially unique identification (ID) code, such as a fuse ID, includes automatically reading the ID code of each of the IC devices and sorting the IC devices in accordance with their automatically read ID codes.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: March 9, 2004
    Assignee: Micron Technology, Inc.
    Inventor: Raymond J. Beffa
  • Publication number: 20040024551
    Abstract: A method of manufacturing IC devices from semiconductor wafers includes providing the wafers and fabricating IC's on the wafers. At probe, a unique fuse ID is stored in each IC, and an electronic wafer map is electronically stored for each wafer indicating the locations of good and bad IC's on the wafer and the fuse ID's of the IC's on the wafer. Each IC is then separated from its wafer to form an IC die, and the IC dice are assembled into IC devices. At the opens/shorts test at the end of assembly, the fuse ID of each IC in each device is automatically retrieved so the wafer map of the IC device may be accessed and evaluated to identify any IC devices containing bad IC's that have accidentally been assembled into IC devices. Any “bad” IC devices are discarded while remaining IC devices continue on to back-end testing.
    Type: Application
    Filed: June 19, 2003
    Publication date: February 5, 2004
    Inventor: Raymond J. Beffa
  • Patent number: 6636068
    Abstract: A circuit for isolating a short-circuited integrated circuit (IC) formed on the surface of a semiconductor wafer from other ICs formed on the wafer that are interconnected with the short-circuited IC includes control circuitry within the short-circuited IC for sensing the short circuit. The control circuitry may sense the short circuit in a variety of ways, including sensing excessive current drawn by the short-circuited IC, and sensing an abnormally low or high voltage within the short-circuited IC. Switching circuitry also within the short-circuited IC selectively isolates the short-circuited IC from the other ICs on the wafer in response to the control circuitry sensing the short circuit. As a result, if the wafer is under probe test, for example, testing can continue uninterrupted on the other ICs while the short-circuited IC is isolated.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 21, 2003
    Inventors: Warren M. Farnworth, William K. Waller, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Publication number: 20030178692
    Abstract: A semiconductor wafer having dice that include circuitry that is placed into a mode when the circuitry receives an alternating signal having certain characteristics. The alternating signal may be supplied from a system controller through a probe, probe pad, and conductive path on the wafer. In a preferred embodiment, the conductive path simultaneously carries a VCC power signal and the alternating signal to the circuitry. However, the alternating signal may be carried on a conductive path different from the one carrying the VCC signal. A great deal of information may be conveyed through the alternating signal, making other signals unnecessary in controlling, testing, stressing, and repairing dice on the wafer. For example, clocking information may be conveyed through the alternating signal. The circuitry may be placed in different modes in response to different characteristics of the alternating signal. The alternating signal and a VCC power signal are received through a single contact on each die.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 25, 2003
    Inventors: Warren M. Farnworth, Leland R. Nevill, Raymond J. Beffa, Eugene H. Cloud
  • Publication number: 20030139839
    Abstract: A method for sorting integrated circuit (IC) devices of the type having a fuse identification (ID) into those devices requiring enhanced reliability testing and those requiring standard testing includes storing fabrication deviation data, probe data, and test data in association with the fuse ID of each of the devices indicating each of the devices requires either enhanced reliability testing or standard testing. The fuse ID of each of the devices is then automatically read before, during, or after standard testing of the devices. The testing process requirement data stored in association with the fuse ID of each of the devices is then accessed, and the devices are sorted in accordance with the accessed data into those devices requiring enhanced reliability testing and those requiring standard testing.
    Type: Application
    Filed: March 3, 2003
    Publication date: July 24, 2003
    Inventor: Raymond J. Beffa