US 11,990,162 B2
Independent reader/writer overcoats for an SGV tape head
David J. Seagle, Morgan Hill, CA (US); and Robert G. Biskeborn, Hollister, 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. 27, 2022, as Appl. No. 17/954,089.
Prior Publication US 2024/0105218 A1, Mar. 28, 2024
Int. Cl. G11B 5/255 (2006.01); G11B 5/008 (2006.01)
CPC G11B 5/255 (2013.01) [G11B 5/00813 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A same gap verify (SGV) module head assembly, comprising:
a closure;
a plurality of write transducers disposed in a first row on the closure, the plurality of write transducers being coated with a first overcoat at a media facing surface (MFS);
a plurality of read transducers disposed in a second row adjacent to the first row on the closure, each read transducer being paired with an adjacent write transducer, and each write transducer and read transducer of each pair being aligned in a downtrack direction, wherein each read transducer is coated with a second overcoat at the MFS, the second overcoat having a greater thickness than the first overcoat; and
a substrate disposed adjacent to the second row, wherein at least a portion of the substrate is coated with the second overcoat at the MFS.