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:
Mar. 22, 2011
Filed:
Dec. 27, 2006
Applicant:
Choul Joo Ko, Seoul, KR;
Inventor:
Choul Joo Ko, Seoul, KR;
Assignee:
Dongbu Electronics Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/425 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high-voltage semiconductor device and a method for making the same are provided. A high-voltage semiconductor device and a low-voltage semiconductor device are formed in a single substrate, a photolithography process that is required to form a high-voltage well region is omitted, and the well region of the high-voltage semiconductor is formed together with the well region of the low-voltage semiconductor device formed in another photolithography process.