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. 04, 2003
Filed:
Sep. 17, 2001
Chung-Yu Wang, Jung he, TW;
Chender Huang, Hsin-Chu, TW;
Pei-Haw Tsao, Taichung, TW;
Ken Chen, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Company, Hsin-Chu, TW;
Abstract
A method of improving adhesion of a surface including the following steps. A structure having an upper surface is provided. A composite anchor layer is formed over the upper surface of the structure. The composite anchor layer including at least an upper anchor sub-layer and a lower anchor sub-layer. The upper anchor sub-layer is patterned to form a dense pattern of upper sub-anchors. The lower anchor sub-layer is then patterned using the upper sub-anchors as masks to form lower sub-anchors. The respective upper sub-anchors and lower sub-anchors form a dense pattern of anchors whereby the dense pattern of anchors over the upper surface improve the adhesion of the surface.