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:
Sep. 05, 2023
Filed:
Jun. 23, 2021
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Byoungdeog Choi, Suwon-si, KR;
Jangseop Kim, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/311 (2006.01); H01L 21/033 (2006.01); H01L 21/56 (2006.01);
U.S. Cl.
CPC ...
H01L 21/565 (2013.01); H01L 21/0337 (2013.01); H01L 21/31116 (2013.01); H01L 21/31144 (2013.01);
Abstract
A method of fabricating a semiconductor may include forming on a substrate a mold structure including a mold layer, a buffer layer, and a support layer, performing on the mold structure an anisotropic etching process to form a plurality of through holes in the mold structure, and forming a plurality of bottom electrodes in the through holes. The buffer layer has a nitrogen content amount that increases as approaching the support layer from the mold layer. The buffer layer has an oxygen content amount that increases as approaching the mold layer from the support layer.