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:
May. 23, 2017
Filed:
Sep. 17, 2015
Applicant:
United Microelectronics Corp., Hsin-Chu, TW;
Inventors:
Assignee:
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/11529 (2017.01); H01L 27/11573 (2017.01); H01L 27/11531 (2017.01);
U.S. Cl.
CPC ...
H01L 27/11529 (2013.01); H01L 27/11531 (2013.01); H01L 27/11573 (2013.01);
Abstract
A semiconductor device includes a substrate with a memory region and a logic region, a logic gate stack, and a non-volatile gate stack. The substrate has a recess disposed in the memory region. The logic gate stack is disposed in the logic region and has a first top surface. The non-volatile gate stack is disposed in the recess and has a second top surface. The second top surface is lower than the first top surface by a step height.