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:
Feb. 18, 2003
Filed:
Aug. 20, 2001
Applicant:
Inventor:
Chao-Chieh Tsai, Shin-Chu, TW;
Assignee:
Taiwan Semiconductor Manufacturing Company, Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/900 ;
U.S. Cl.
CPC ...
H01L 2/900 ;
Abstract
A fuse structure and process for forming it are described. The fuse is formed from a compound layer of aluminum and chromium. These two layers are shaped to form a stripe that bridges a gap between two copper dual damascene connectors. By controlling the degree of overlap between the stripe and the connectors the conductance of heat from the stripe into the connectors can be varied, thereby allowing control of the manner in which the fuse blows when irradiated. Since there is no copper in the fuse material, blowing a fuse does not introduce unprotected copper sources into the structure.