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:
Aug. 26, 2014
Filed:
Aug. 30, 2004
Eric Wayne Flint, San Jose, CA (US);
Ning Shi, San Jose, CA (US);
Qi-fan Xiao, San Jose, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A method for applying a protective layer to an electronic device such as the ABS of a slider, magnetic head, etc. for reducing paramagnetic deadlayer thickness includes selecting an etching angle for minimizing formation of a paramagnetic deadlayer at an interface of an electronic device and an adhesive layer subsequently formed on the electronic device, etching a surface of an electronic device at the selected angle, the selected angle being less than about 75 degrees from an imaginary line extending perpendicular to the surface, forming an adhesive layer on the etched surface of the electronic device, and forming a protective layer on the adhesive layer. A magnetic head formed by the process is also disclosed.