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:
Aug. 25, 2015
Filed:
Dec. 01, 2014
Hgst Netherlands B.v., Amsterdam, NL;
John Contreras, Palo Alto, CA (US);
Albert John Wallash, Morgan Hill, CA (US);
Rehan Ahmed Zakai, San Ramon, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A 'split-substrate' design is described for the metal ground layer in the suspension for a slider for use in a disk drive that reduces crosstalk from signals being transmitted on the conductive traces and allows externally induced interference to be shunted away from sensitive traces along selected portions of the suspension. In embodiments of the invention a slit formed in the metal ground layer to provide two parallel ground paths respectively on the left and right sides of the selected portion of the suspension. By positioning interference signal generating traces like writer traces on one side of the slit, that side becomes the noisy ground path leaving the other side as a 'quiet' ground path. The shape, positioning and grounding of the split substrate structure can shunt return/ground currents created by external RFI into the noisy leg and thereby shield the quiet leg.