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:
May. 13, 2003
Filed:
Sep. 13, 2000
Larry E. Daby, Erie, CO (US);
James C. Cates, Superior, CO (US);
John P. Biesecker, Boulder, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
A method of fabricating a thin film magnetic transducer and the resulting transducer structure is disclosed. The method starts with the formation of a bottom pole having an upper portion and a lower portion in a zero throat region. The upper portion has an upper portion width and the lower portion had a lower portion width, wherein the lower portion width is greater than the upper portion width. A gap layer is then formed over the bottom pole, and the top pole is formed over the gap layer. The top pole width is greater than the bottom pole's lower portion width. In one embodiment, a planarization layer is deposited overlaying the bottom pole prior to formation of the gap layer. Lapping is then performed to reduce the planarization layer and the bottom pole's upper portion to a flat surface suitable for receiving the gap layer deposition.