US 12,437,778 B2
Electroplating of high damping material for trailing shield in a perpendicular magnetic recording writer
Xiaomin Liu, Fremont, CA (US); Wenjie Chen, Cupertino, CA (US); Yue Liu, Fremont, CA (US); Weihao Xu, San Jose, CA (US); Yuhui Tang, Milpitas, CA (US); and Feiyue Li, Newark, CA (US)
Assigned to Headway Technologies, Inc., Milpitas, CA (US)
Filed by Headway Technologies, Inc., Milpitas, CA (US)
Filed on Apr. 2, 2024, as Appl. No. 18/625,025.
Application 18/625,025 is a continuation of application No. 18/133,374, filed on Apr. 11, 2023, granted, now 11,978,488.
Prior Publication US 2024/0347072 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G11B 5/11 (2006.01); G11B 5/127 (2006.01); G11B 5/31 (2006.01)
CPC G11B 5/112 (2013.01) [G11B 5/11 (2013.01); G11B 5/1278 (2013.01); G11B 5/315 (2013.01); G11B 5/3163 (2013.01); Y10T 29/49043 (2015.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
disposing a side shield around a main pole for a write head; and
forming a trailing shield that comprises an iron (Fe)-cobalt (Co)-nickel (Ni)-metal (M) (FeCoNiM) composition that is adjacent to the main pole by:
adding Fe2+, Co2+, Ni2+ and a transition metal salt to an aqueous solution; and
applying a pulse to the aqueous solution according to a pulse waveform.