Abstract: A magnetic sensor assembly includes first and second shields each comprised of a magnetic material. The first and second shields define a physical shield-to-shield spacing. A sensor stack is disposed between the first and second shields and includes a seed layer adjacent the first shield, a cap layer adjacent the second shield, and a magnetic sensor between the seed layer and the cap layer. At least a portion of the seed layer and/or the cap layer comprises a magnetic material to provide an effective shield-to-shield spacing of the magnetic sensor assembly that is less than the physical shield-to-shield spacing.
Type:
Grant
Filed:
January 9, 2008
Date of Patent:
September 13, 2016
Assignee:
SEAGATE TECHNOLOGY LLC
Inventors:
Eric W. Singleton, Qing He, Jae-Young Yi, Matt Johnson, Zheng Gao, Dimitar V. Dimitrov, Song S. Xue