The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2006
Filed:
Dec. 18, 2003
Joe D. Woodall, Gunter, TX (US);
Robert F. Mortan, McKinney, TX (US);
Joe D. Woodall, Gunter, TX (US);
Robert F. Mortan, McKinney, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A thermally enhanced BGA semiconductor devicehaving a heat sinkformed from a single piece of material with an expanded base and a pedestal in contact with a semiconductor chipThe pedestal is aligned through a window opening in a substrateand the top surface of the base is adhered to the substrate. The heat sinkwith an expanded base provides a path for rapid and efficient heat spreading and dissipation, a stand-off and an aid to improved package planarity during reflow to a PCB, and a long path for ingress of contaminants into the package. The device is amenable to high volume, low cost production.