公开(公告)号：US11776568B2

公开(公告)日：2023-10-03

申请号：US17652070

申请日：2022-02-22

申请人： Western Digital Technologies, Inc.

发明人： Yu Lo ,  Yan Liu ,  Timothy A. Riener ,  Feng Liu ,  Yunfei Ding ,  Yaw-Shing Tang ,  Karl A. Flechsig

IPC分类号： G11B5/40 ,  G11B33/14 ,  G11B5/00

CPC分类号： G11B5/40 ,  G11B33/144 ,  G11B2005/0018

摘要： The present disclosure generally relates to improved lifetime of a data storage device utilizing an energy assist element. Rather than applying the same current to each energy assist element of a device, each energy assist element has a write current specific to the energy assist element. The unique applied current results in the corresponding energy assist elements having substantially the same temperature during operation. Obtaining substantially the same temperature during operation provides predictable and repeatable device performance and increases the lifetime of the entire data storage device as all energy assist elements should have substantially the same lifetime.