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. 14, 2018
Sandisk Technologies Llc, Plano, TX (US);
Jinqiu Zhang, Fremont, CA (US);
Ming Sun, Pleasanton, CA (US);
Feng Liu, San Ramon, CA (US);
Xiaojun Zhang, Fremont, CA (US);
SanDisk Technologies LLC, Addison, TX (US);
Abstract
A magnetic recording head having an air bearing surface (ABS) includes a main pole, a side shield laterally spaced from the main pole by a first side gap and a second side gap, an electrically conductive non-magnetic gap material layer disposed between the main pole and the side shield in the first side gap, and a dielectric non-magnetic gap material matrix and a conformal dielectric spacer layer disposed between the main pole and the side shield in the second side gap. The dual side gap recording head can improve on track performance on write gap peak field, on track performance on write field gradient, ATI off track performance, WATER reliability and can provide advantageous writer and side shield saturation properties.