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:
Feb. 19, 2013
Filed:
Dec. 08, 2009
Guanghong Luo, Fremont, CA (US);
Danning Yang, Fremont, CA (US);
Weimin SI, Pleasanton, CA (US);
Dujiang Wan, Fremont, CA (US);
Yun-fei LI, Fremont, CA (US);
Lijie Guan, San Jose, CA (US);
Ming Jiang, San Jose, CA (US);
Guanghong Luo, Fremont, CA (US);
Danning Yang, Fremont, CA (US);
Weimin Si, Pleasanton, CA (US);
Dujiang Wan, Fremont, CA (US);
Yun-Fei Li, Fremont, CA (US);
Lijie Guan, San Jose, CA (US);
Ming Jiang, San Jose, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method provides a pole of magnetic recording transducer. A nonmagnetic stop layer having a thickness and a top surface is provided. A depression that forms a bevel is provided in the stop layer. The bevel has a depth less than the thickness and a bevel angle with respect to a remaining portion of the top surface. The bevel angle is greater than zero and less than ninety degrees. An intermediate layer having a substantially flat top surface is provided over the stop layer. A trench is formed in the intermediate layer via a removal process. The trench has a profile corresponding to the pole. The stop layer is a stop for the removal process. The method also includes providing the pole in the trench. The pole has a leading edge bevel corresponding to the bevel in the stop layer.