Patents by Inventor Steven Joel Diffenderfer

Steven Joel Diffenderfer 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: 6107121
    Abstract: A semiconductor device package and method includes a thick, integrated circuit chip stack having a substantially planar bottom surface with a plurality of terminals. A carrier substrate is provided, also having a substantially planar surface, and being adapted to mount the chip stack. The substrate has a plurality of terminals and may preferably be made of a metallized ceramic. The terminals of the chip stack are adapted to be connected to the terminals of the substrate. Means are provided for mounting the chip stack on the substrate, as well as means for making electrical connections between the terminals of the chip stack and the terminals of the substrate. Finally, encapsulating means are used for supporting and maintaining the chip stack mounted on the carrier substrate. J leads connect the substrate to a circuit card.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: August 22, 2000
    Assignee: International Business Machines Corporation
    Inventors: Steven Joel Diffenderfer, Stephen Wesley MacQuarrie
  • Patent number: 5872397
    Abstract: A semiconductor device package and method includes a thick, integrated circuit chip stack having a substantially planar bottom surface with a plurality of terminals. A carrier substrate is provided, also having a substantially planar surface, and being adapted to mount the chip stack. The substrate has a plurality of terminals and may preferably be made of a metallized ceramic. The terminals of the chip stack are adapted to be connected to the terminals of the substrate. Means are provided for mounting the chip stack on the substrate, as well as means for making electrical connections between the terminals of the chip stack and the terminals of the substrate. Finally, encapsulating means are used for supporting and maintaining the chip stack mounted on the carrier substrate. J leads connect the substrate to a circuit card.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: February 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Steven Joel Diffenderfer, Stephen Wesley MacQuarrie
  • Patent number: 5814877
    Abstract: A method of making an electronic package. The method includes the step providing a leadframe of a single layer of material. The leadframe includes a semiconductor chip support, a plurality of signal leads, and a common ground portion substantially surrounding the chip support portion. A semiconductor chip having a plurality of signal sites and a plurality of ground sites is positioned on the semiconductor chip support of the leadframe. Selected ones of the signal sites of the semiconductor chip are selectively electrically connected to respective ones of the signal leads of the lead frame and selective ones of the ground sites of the semiconductor chip are selectively electrically connected to the common ground portion of the leadframe. Each of the signal leads of the leadframe are electrically isolated from each other and from the common ground portion of the leadframe.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: September 29, 1998
    Assignee: International Business Machines Corporation
    Inventors: Steven Joel Diffenderfer, Hussain Shaukatullah
  • Patent number: 5639694
    Abstract: A method of making an electronic package including providing a leadframe of a single layer of material. The leadframe includes a semiconductor device support, a plurality of signal leads, and a common ground portion surrounding the device support portion. A semiconductor device having a plurality of signal sites and a plurality of ground sites is positioned on the semiconductor device support of the leadframe. Selected ones of the signal sites are connected to respective ones of the signal leads. Selective ones of the ground sites are connected to the common ground portion of the leadframe. Each of the signal leads are electrically isolated from each other and from the common ground portion of the leadframe.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 17, 1997
    Assignee: International Business Machines Corporation
    Inventors: Steven Joel Diffenderfer, Hussain Shaukatullah