Patents Represented by Attorney Donal M. Sell

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  • Socket for tab burn-in and test
    Patent number: 4986760
    Abstract: Test and burn-in sockets with many mechanical contacts require increased support strength, and with the increase in the number of contacts it is beneficial that the contacts are inserted before assembly, the contacts in the support comb are supported to restrict movement of the contact other than in the path of movement of the IC device, and the registration and movement of the IC device is sufficient to obtain good electrical contact and maintain electrical contact during temperature cycling.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 22, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kurt H. Petersen, Juan P. Rios
  • Process for making primed polymer surfaces and charge transfer media having conductivity sites thereon
    Patent number: 4481234
    Abstract: The surface properties of solid substrates are improved by the formation of discrete sites of inorganic materials on one surface of the substrate.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: November 6, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Vasant V. Kolpe, Dudley M. Sherman, William A. Hendrickson, Hsin-hsin Chou