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:
Feb. 17, 2015
Filed:
Jun. 13, 2013
Applicant:
Sumco Techxiv Corporation, Nagasaki, JP;
Inventors:
Tadashi Kawashima, Nagasaki, JP;
Naoya Nonaka, Nagasaki, JP;
Assignee:
Sumco Techxiv Corporation, Nagasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 21/02532 (2013.01);
Abstract
A method of manufacturing an epitaxial silicon wafer including a silicon wafer having a surface added with phosphorus and an epitaxial film provided on the surface includes adjusting an in-plane thickness distribution of the epitaxial film formed on the surface of the silicon wafer based on an in-plane resistivity distribution of the silicon wafer before an epitaxial growth treatment.