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 7461445 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 09, 2008

Filed:

Jan. 31, 2005
Applicant:

April D. Hixson-goldsmith, Campbell, CA (US);

Inventor:

April D. Hixson-Goldsmith, Campbell, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); C23F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for fabricating a non-electroplated shield using combination patterning and devices formed thereby are disclosed. The method includes depositing a metal layer, such as CZT, removing substantially 75% of the metal layer during a first phase using at least a first removal process and removing a remaining portion of the metal layer during a second phase using at least a second removal process. The first removal process may include depositing a first patterning layer, removing substantially 75% of the metal layer by ion-mill or similar technology and stripping the first patterning layer away. The second removal process may include depositing a second patterning layer and removing the remaining portion of the metal layer using a wet-etch or other etch process and removing the second patterning layer. The deposited metal layer may have a thickness up to several μm and the edges of the shield exhibit a unique step pattern that is visible in a cross-section view of the shield.


Find Patent Forward Citations

Hixson-Goldsmith, April. (2008). Method of manufacturing a magnetic head with a deposited shield (U.S. Patent No. 7461445). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7461445

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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