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.:

US 8440576 B1

PDF
Full Text
Expired
Date of Patent:
May. 14, 2013

Filed:

Apr. 25, 2008
Applicant:

Shih-ping Hong, Taichung, TW;

Inventor:

Shih-Ping Hong, Taichung, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/337 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for patterning a material is provided. The method includes patterning a second material over a first material over a substrate. A surface portion of the patterned second material is converted to form a third material and a remaining patterned second material, wherein the third material is around the remaining patterned second material. One of the remaining patterned second material and the third material is removed to form a mask. The first material is patterned by using the mask.


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