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:
Sep. 29, 2015
Filed:
Mar. 31, 2015
Western Digital (Fremont), Llc, Fremont, CA (US);
Guanghong Luo, Fremont, CA (US);
Chen-Jung Chien, Mountain View, CA (US);
Ming Mao, Dublin, CA (US);
Daniele Mauri, San Jose, CA (US);
Ming Jiang, San Jose, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method provides a magnetic transducer having an air-bearing surface (ABS). The method includes providing a read sensor stack for a read sensor of the read device and defining a read sensor from the read sensor stack in a stripe height direction. The stripe height direction is perpendicular to the ABS. At least one magnetic bias structure is also provided. An insulating layer is deposited on the read sensor. The insulating layer has a full film removal rate of not more than fifty Angstroms per minute. The insulating layer also has a top surface. The insulating layer is planarized. At least a portion of the top surface of the insulating layer being exposed at the start of the planarizing step. At least the read sensor is defined in a track width direction.