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 8881377 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2014

Filed:

Dec. 21, 2010
Applicant:

Chester X. Chien, San Jose, CA (US);

Inventor:

Chester X. Chien, San Jose, CA (US);

Assignee:

HGST Netherlands B.V., Amsterdam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/187 (2006.01); G11B 5/31 (2006.01); G11B 5/127 (2006.01); H01L 23/31 (2006.01); H01L 21/30 (2006.01); H01L 21/302 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3116 (2013.01); H01L 23/3178 (2013.01); H01L 21/30 (2013.01); H01L 21/302 (2013.01); G11B 5/1871 (2013.01); G11B 5/1278 (2013.01); G11B 5/315 (2013.01); G11B 5/3166 (2013.01); G11B 5/3196 (2013.01);
Abstract

A method for determining a critical dimension of a structure along a plane of interest from a measurement along a test plane that is not necessarily located at the plane of interest. The method involves slicing a structure along a test plane and measuring a marker feature in this test plane. A determination of a critical dimension of a feature at the plane of interest is then determined based on the measurement of the marker feature measurement at the test plane. This testing methodology can be useful, for example in the measurement of a critical dimension of a write pole at an air bearing surface plane form a measurement of a test feature at a plane that is not necessarily located at the air bearing surface plane.


Find Patent Forward Citations

Chien, Chester. (2014). Method for determining a critical dimension at a plane of interest from a measurement taken at a test plane (U.S. Patent No. 8881377). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8881377

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