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:
Sep. 07, 1999
Filed:
Oct. 26, 1998
Michael Barrow, El Dorado Hills, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A quad flat pack (QFP) integrated circuit package that is modified to include a tab that increases the thermal efficiency of the package. The package contains an integrated circuit that is mounted to a die paddle of a lead frame. A plurality of leads extend from a first side of the die paddle. Placing all of the leads on one side of the package minimizes the difference in signal length between the leads. The tab extends from a second side of the die paddle. Both the leads and the tab extend from a plastic housing which encapsulates the integrated circuit. The tab provides a large conductive area which increases the heat transfer rate from the integrated circuit to the ambient, or an external thermal element.