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. 21, 1991
Filed:
May. 25, 1989
Michael T Welch, Sugarland, TX (US);
Ronald E McMann, Rosenberg, TX (US);
Manuel L Torreno, Jr, Houston, TX (US);
Evaristo Garcia, Jr, Rosenberg, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A fuse link (50) is formed using a method which offers greater scalability of the general conductor system used to wire the device. An oxide mask (36) having the shape of a desired fuse link is formed over a thin metallization layer (34). A barrier layer (38) is formed over the thin metallization layer (34). A conductive layer (40) is formed over the barrier layer (38). A photoresist mask (42) supplied to the conductive layer (40), and the conductive layer is etched to formed interconnects (44, 46). Subsequently, the barrier layer (38) and thin metallization layer (34) are etched, thus rendering a fuse link (50) between interconnects (44, 46) under the oxide mask (36).