US 12,148,454 B2
Magnetic recording head with stable magnetization of shields
Quan-Chiu Harry Lam, 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 May 3, 2023, as Appl. No. 18/142,938.
Application 18/142,938 is a division of application No. 17/396,234, filed on Aug. 6, 2021, granted, now 11,676,627.
Prior Publication US 2023/0274761 A1, Aug. 31, 2023
Int. Cl. G11B 5/31 (2006.01); G11B 5/11 (2006.01); G11B 5/127 (2006.01); G11B 5/187 (2006.01); G11B 5/48 (2006.01)
CPC G11B 5/315 (2013.01) [G11B 5/11 (2013.01); G11B 5/1276 (2013.01); G11B 5/187 (2013.01); G11B 5/3153 (2013.01); G11B 5/484 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic recording head, comprising:
a main pole;
a first side shield disposed on a first side of the main pole;
a second side shield disposed on a second side of the main pole;
a trailing shield disposed on a trailing side of the main pole;
a leading shield disposed on a leading side of the main pole;
an upper return pole disposed over the trailing shield;
a first shunt extending from the leading shield to the upper return pole; and
a second shunt extending from the leading shield to the upper return pole, the first shunt and the second shunt being non-contiguous, wherein the first and second shunts are spaced from the trailing shield in a stripe height direction.