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:
Oct. 10, 2006
Filed:
Mar. 18, 2002
Thomas Edward Dinan, San Jose, CA (US);
Jeffrey S. Lille, San Jose, CA (US);
Son Van Nguyen, Los Gatos, CA (US);
Hugo Alberto Emilio Santini, San Jose, CA (US);
Thomas Edward Dinan, San Jose, CA (US);
Jeffrey S. Lille, San Jose, CA (US);
Son Van Nguyen, Los Gatos, CA (US);
Hugo Alberto Emilio Santini, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus using a pre-patterned seed layer for providing an aligned coil for an inductive head structure. The method uses an aligned process where the base plate imprint is fabricated on an electrically insulating layer and the reversed image is fabricated and etched into the coil insulation material, e.g., hard bake photoresist to alleviate the problems associated with complete ion removal of the seed layer between high aspect ratio coils. The method would also not be prone to plating non-uniformities (voids), and would not be subject to seed layer undercutting in a wet etch step process.