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. 29, 2019
Filed:
May. 24, 2018
Applicant:
Western Digital (Fremont), Llc, Fremont, CA (US);
Inventors:
Steven C. Rudy, Carmel Valley, CA (US);
Christopher L. Beaudry, San Jose, CA (US);
Shaoping Li, San Ramon, CA (US);
Assignee:
WESTERN DIGITAL (FREMONT), LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/31 (2006.01); G11B 5/48 (2006.01); G11B 5/127 (2006.01); G11B 5/39 (2006.01); G11B 5/11 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3169 (2013.01); G11B 5/127 (2013.01); G11B 5/3166 (2013.01); G11B 5/3173 (2013.01); G11B 5/3977 (2013.01); G11B 5/486 (2013.01); G11B 5/4886 (2013.01); G11B 5/11 (2013.01); G11B 5/3909 (2013.01); G11B 5/3912 (2013.01); G11B 5/3932 (2013.01);
Abstract
A method and system provide a storage device. A plurality of read sensor stacks for each reader of the storage device are provided. The read sensor stacks are distributed along a down track direction and offset in a cross-track direction. A plurality of electronic lapping guides (ELGs) are provided for the read sensor stacks. The read sensor stacks are lapped. Lapping is terminated based on signal(s) from the ELG(s).