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:
Nov. 13, 2012
Filed:
Jul. 23, 2010
Young Man Cho, Icheon, KR;
Young Man Cho, Icheon, KR;
Hynix Semiconductor Inc., Icheon, KR;
Abstract
A method for forming a semiconductor device includes: etching a hard mask layer and a conductive layer formed on a semiconductor substrate, a lower structure being formed on the semiconductor substrate; forming a sacrificial insulating layer at upper parts of the etched hard mask layer and the etched conductive layer of a peripheral circuit region; forming an isolation insulating layer at an upper part of an isolation insulating layer of a cell region; forming spacers at sidewalls of the etched hard mask layer, the etched conductive layer, and the isolation insulating layer of the cell region, respectively; forming storage electrode contact plugs at both sides of each of the spacers, respectively; and removing the sacrificial insulating layer to expose the semiconductor substrate of the peripheral circuit region, and etching the lower structure to expose the semiconductor substrate of the peripheral circuit region.