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. 01, 2011
Filed:
Dec. 29, 2009
DO Hyung Kim, Seoul, KR;
Young Man Cho, Icheon, KR;
Do Hyung Kim, Seoul, KR;
Young Man Cho, Icheon, KR;
Hynix Semiconductor, Inc., Icheon, KR;
Abstract
The invention relates to a semiconductor device and a method of fabricating the same, wherein a storage node contact hole is made large to solve any problem caused during etching a storage node contact hole with a small CD, a landing plug is formed to lower plug resistance, and the SAC process is eliminated at the time of the bit line formation. A method of fabricating a semiconductor device according to the invention comprises: forming a device isolation film for defining a multiplicity of active regions in a semiconductor substrate; forming a multiplicity of buried word lines in the semiconductor substrate; forming a storage node contact hole for exposing a storage node contact region of two adjoining active regions; filling the storage node contact hole with a storage node contact plug material; forming a bit-line groove for exposing a bit-line contact region of the active region and splitting the storage node contact plug material into two; and burying the bit line into the bit-line groove.