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. 13, 2003
Filed:
Jun. 06, 2001
Applicant:
Inventors:
Charles 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 2/904 ;
U.S. Cl.
CPC ...
H01L 2/904 ;
Abstract
The present invention provides a two-terminal Zener zap diode device structure that relies upon the formation of an anti-fuse through a silicon substrate with the melting and flow of an aluminum alloy to create the current path. The use of oversized contacts in the diode structure permits the Tungsten plug to be eliminated from the diode structure and, thus, permits an aluminum alloy melt and flow mechanism to be used with a Tungsten plug process.