Patents by Inventor Randolph M. Gregg

Randolph M. Gregg 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).

  • Carrier for stacked semiconductor die
    Patent number: 4589547
    Abstract: A carrier (30) for thin flat electronic devices (36) is provided which has a high volumetric efficiency and is adapted for use with automatic handling equipment. The carrier (30) comprising a hollow tube (31) having a longitudinal interior bore (35) in which is placed a longitudinal cage of metal rails (38) which surround, guide, and hold the devices (36) in a stacked relationship. At least six rails (38) are required to avoid binding and jamming of devices (36) in bore (35). End caps (33a-b) and a moveable resilient plug (34) are used to retain the devices (36) firmly but gently in place to prevent chipping and scratching of the devices (36) during handling and shipment of the carrier (30), and to vary the capacity of the carrier (30). The carrier (30) is rugged, reuseable, and has a volumetric efficiency (devices/unit volume) three to eighteen times higher than prior art egg-crate type device carriers.
    Type: Grant
    Filed: January 14, 1983
    Date of Patent: May 20, 1986
    Assignee: Motorola Inc.
    Inventors: Timothy C. Stewart, Leo Ofman, Kelvin R. Blair, Randolph M. Gregg