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. 11, 2006
Filed:
Feb. 28, 2005
Ki Seon Park, Kyoungki-do, KR;
Jae Sung Roh, Kyoungki-do, KR;
Ki Seon Park, Kyoungki-do, KR;
Jae Sung Roh, Kyoungki-do, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
In a method for forming a capacitor for use in a semiconductor device, a nitride film for stopping etching, a first mold oxide film, an insulating film, deposited on a substrate are etched to expose the respective storage node contacts and thereby to form a plurality of contact holes arrayed in a zigzag pattern for storage electrodes. A sacrificial oxide film is deposited by burying the contact holes for storage electrodes in a thickness such that an outer portion of the storage electrodes having a relatively short interval is completely buried while an outer portion the storage electrodes having a relatively long interval is not completely buried. The sacrificial oxide film and the insulation film are etched back to form a support network enclosing the respective storage electrodes and interconnected to each other.