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:
Jul. 27, 1999
Filed:
Feb. 25, 1997
Dug-Dong Kang, Kyungki-do, KR;
Yun-seung Shin, Seoul, KR;
Abstract
A method for forming an electrode for an integrated circuit device includes the steps of forming a first conductive layer on a surface of a microelectronic substrate, and forming a patterned photoresist layer on the first conductive layer. A spacer is formed along sidewalls of the patterned photoresist layer, and the first conductive layer is etched to a predetermined depth less than a thickness of the first conductive layer using the patterned photoresist layer and the spacer as an etch mask thereby defining a hole in the first conductive layer. A protective layer is formed in the hole which covers exposed portions of the first conductive layer, and the patterned photoresist layer is removed. The first conductive layer is then etched using the spacer and the protective layer as an etching mask to form a vertical electrode structure. Related structures are also discussed.