Patents by Inventor Edward H. Olsen

Edward H. Olsen 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).

  • Solderless test interface for a semiconductor device package
    Patent number: 6820794
    Abstract: A solderless test interface (10) includes a thin, flexible, electrically insulative sheet (20) having metal plated through-holes (24) formed in the pattern of the external ball contacts (54) of a semiconductor device (14). The termini (26, 30) of the holes (24) on the surface of the sheet (20) are also plated. The metal (40) is coated with a soft metal (42) which will cold-flow under force. The sheet is inserted between the ball contacts (54) and a test board (18). Force is applied to the test board and/or the device to engage and deform the soft metal (42) at the hole termini (26, 30) by its engagement with the balls (54) and pads (16) on the test board. The deformation ensures a low resistance electrical path between the balls and the pads during testing of the device.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: November 23, 2004
    Assignee: Texas Instruments Incorporated
    Inventor: Edward H. Olsen
  • Solderless test interface for a semiconductor device package
    Publication number: 20030189083
    Abstract: A solderless test interface (10) includes a thin, flexible, electrically insulative sheet (20) having metal plated through-holes (24) formed in the pattern of the external ball contacts (54) of a semiconductor device (14). The termini (26, 30) of the holes (24) on the surface of the sheet (20) are also plated. The metal (40) is coated with a soft metal (42) which will cold-flow under force. The sheet is inserted between the ball contacts (54) and a test board (18). Force is applied to the test board and/or the device to engage and deform the soft metal (42) at the hole termini (26, 30) by its engagement with the balls (54) and pads (16) on the test board. The deformation ensures a low resistance electrical path between the balls and the pads during testing of the device.
    Type: Application
    Filed: December 27, 2002
    Publication date: October 9, 2003
    Inventor: Edward H. Olsen
  • Soil pollution monitoring system
    Patent number: 4618855
    Abstract: A soil pollution monitoring system includes a plurality of ducts for conveying gases and air past a sensing device. The sensing device detects selected compounds in the gases and air and provides an output in electrical form which indicates whether or not the levels of certain compounds in the gases and air are greater than a threshold amount thereby indicating that a leak has occurred.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: October 21, 1986
    Assignee: Genelco, Inc.
    Inventors: Robert C. Harding, Edward H. Olsen