US 12,340,826 B2
Hard disk drive slider coating for suspension mechanical improvement
Kia Moh Teo, San Jose, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/373,034.
Prior Publication US 2025/0104732 A1, Mar. 27, 2025
Int. Cl. G11B 5/48 (2006.01)
CPC G11B 5/4826 (2013.01) [G11B 5/4833 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An assembly comprising:
a head slider having a slider body having a leading edge (LE) face, a suspension face, and a recording medium face opposing the suspension face, wherein the slider houses a read-write transducer at or near a trailing edge (TE) face opposing the LE face of the slider body; and
a suspension assembly comprising a flexure having an extending structure, extending from a main planar body of the flexure, to which the suspension face of the slider is adhered;
wherein:
a first portion of the suspension face of the slider body, the first portion extending to a farthest portion of the extending structure of the flexure in a direction of the LE face, is coated with an anti-reflective coating (ARC) extending to the farthest portion of the extending structure of the flexure and ending immediately adjacent the extending structure of the flexure for slider-flexure attachment parallelism; and
a second portion of the suspension face of the slider body beyond the extending structure of the flexure in the direction of the LE face is not coated with the ARC such that the second portion is a greater distance from the main planar body of the flexure than the first portion such that contact between the slider and the main planar body of the flexure is inhibited during slider microactuation sequences.