Brinks Hofer Gilson & Lione
Magnetic sensing element and method for manufacturing the same
An underlying layer is composed of Co—Fe—B that is an amorphous magnetic material. Thus, the upper surface of the underlying layer can be taken as a lower shield layer-side reference position for obtaining a gap length (GL) between upper and lower shields, resulting in a narrower gap than before. In addition, since the underlying layer has an amorphous structure, the underlying layer does not adversely affect the crystalline orientation of individual layers to be formed thereon, and the surface of the underlying layer has good planarizability. Accordingly, PW50 (half-amplitude pulse width) and SN ratio can be improved more than before without causing a decrease in rate of change in resistance (Δ R/R) or the like, thereby achieving a structure suitable for increasing recording density.
TDK Corporation
G H H H G B H B G H H B
G11B H01L H01F H01F G01R B82Y H01L B82Y G11B H01F H01F B82Y
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Akio Kazumasa Masamichi Yoshihiro Kota Kazuaki Kenichi Ryo Eiji Norimasa Yosuke Naoya Hidekazu
Hanada Nishimura Saito Nishiyama Asatsuma Ikarashi Tanaka Nakabayashi Umetsu Okanishi Ide Hasegawa Kobayashi