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:
Oct. 21, 2008
Filed:
Oct. 05, 2005
Shin-hye Kim, Gyeonggi-do, KR;
Ju-bum Lee, Gyeonggi-do, KR;
Min Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
In one embodiment, to fabricate a semiconductor device, a first insulation interlayer is formed on a substrate. A contact pad is formed through the first insulation interlayer. An etch stop layer and a second insulation interlayer are sequentially formed on the first insulation interlayer and the pad. A contact hole exposing at least a portion of the contact pad is formed by partially etching the second insulation interlayer and the etch stop layer. A preliminary lower electrode is formed in the hole. The preliminary lower electrode is isotropically etched to form a lower electrode contacting the contact pad. A dielectric layer and an upper electrode are sequentially formed on the lower electrode.