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:
Mar. 17, 2009
Filed:
Jan. 16, 2007
Jeffrey Gail Holloway, Plano, TX (US);
Steven Alfred Kummerl, Carrollton, TX (US);
Jeffrey Gail Holloway, Plano, TX (US);
Steven Alfred Kummerl, Carrollton, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A semiconductor device having a plastic package with a linear array of metal lands () with parallel perimeter portions (). Pairs of adjacent lands have their facing parallel perimeter portions oriented in parallel, defining a centerline. The land perimeters have flanges remote from the surface, each flange shaped by an outline. For adjacent lands, the flanges () of the parallel perimeter portions have asymmetrical outlines relative to the centerline and are in concord so that alternately the flange of one land diminishes its outline where the flange of the adjacent land protrudes its outline. This coordinated variation shapes the space between the adjacent flanges in a meander-like mode. Adhesive plastic material is anchored in the space to hinder a land shift along the parallel perimeter portions.