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:
Oct. 10, 2006
Filed:
Sep. 16, 2004
Applicants:
Charles A. Dark, Arlington, TX (US);
William M. Coppock, Arlington, TX (US);
Inventors:
Charles A. Dark, Arlington, TX (US);
William M. Coppock, Arlington, TX (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A conductive structure provides a conductive path from a first region in a semiconductor material to a second spaced apart region in the semiconductor material by forming a plurality of trenches between the first and second regions, implanting a dopant into the bottom surfaces of the trenches, and then annealing the wafer to cause the dopant at the bottom surfaces to diffuse and form a continuous conductive path.