US 12,444,434 B2
Magnetic recording head with current path between trailing shield and leading shield for improved resistance
Muhammad Asif Bashir, San Jose, CA (US); Alexander Goncharov, Morgan Hill, CA (US); Zhigang Bai, San Jose, CA (US); and Yunfei Ding, Fremont, 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. 19, 2023, as Appl. No. 18/355,133.
Claims priority of provisional application 63/496,770, filed on Apr. 18, 2023.
Prior Publication US 2024/0355353 A1, Oct. 24, 2024
Int. Cl. G11B 5/31 (2006.01); G11B 5/127 (2006.01); G11B 5/235 (2006.01); G11B 5/00 (2006.01)
CPC G11B 5/3116 (2013.01) [G11B 5/1278 (2013.01); G11B 5/235 (2013.01); G11B 5/314 (2013.01); G11B 5/3143 (2013.01); G11B 5/315 (2013.01); G11B 2005/0024 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A magnetic recording head, comprising:
a leading shield;
a main pole spaced from the leading shield by insulating material, wherein the main pole includes a first side facing the leading shield, a second side opposite the first side, a third side connecting the first side and the second side, and a fourth side opposite the third side;
a trailing shield;
a hot seed layer disposed between the trailing shield and the main pole, wherein the hot seed layer is spaced from the trailing shield by a first insulating material;
a first side shield spaced from the third side of the main pole and electrically coupled to the trailing shield;
a second side shield spaced from the fourth side of the main pole and electrically coupled to the leading shield; and
a conductive, nonmagnetic layer, between the main pole and the hot seed layer, that is electrically coupled to the first side shield and the second side shield.