US 12,094,500 B2
Hard disk drive carriage arm depression
Yoshiyuki Hirono, Chigasaki (JP); and Andre Chan, Palo Alto, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Jul. 17, 2023, as Appl. No. 18/222,953.
Claims priority of provisional application 63/421,399, filed on Nov. 1, 2022.
Prior Publication US 2024/0144967 A1, May 2, 2024
Int. Cl. G11B 5/48 (2006.01)
CPC G11B 5/4813 (2013.01) 20 Claims
OG exemplary drawing
 
1. A hard disk drive comprising:
a plurality of disk media rotatably mounted on a spindle;
a head slider comprising a read-write head configured to write to and to read from a disk medium of the plurality of disk media;
a rotary actuator configured to move the head slider to access portions of the disk medium;
a carriage coupled with the rotary actuator, the carriage comprising at least one arm extending therefrom, wherein the at least one arm comprises:
an outer leading edge facing the disk media and an outer trailing edge facing away from the disk media,
an uppermost top surface extending between the outer leading and trailing edges and an opposing lowermost bottom surface extending between the outer leading and trailing edges,
a top depressed portion comprising an enclosing sidewall extending from the top surface toward the bottom surface and terminating at a separating structure, and
a bottom depressed portion opposing the top depressed portion and comprising an enclosing sidewall extending from the bottom surface toward the top surface and terminating at the separating structure.