Title :
Sensor design of vertical type GMR head
Author :
Kano, Hiroshi ; Mizuguchi, Tetsuya ; Hashimoto, Minoru ; Kitamura, Kenichi ; Katakura, Touru ; Miyauchi, Teiichi
Author_Institution :
CNC Core Technol. Dev. Center, Sony Corp., Yokohama, Japan
fDate :
9/1/2000 12:00:00 AM
Abstract :
We previously reported that the vertical GMR (V-GMR) head can be used for a high-density recording head. However, special design rules are required because the head has a different geometry from the conventional head. We discuss the optimum design of the V-GMR head. We report the technologies and materials required to produce the V-GMR head. Using computer simulations and wafer level experiments, we confirmed that the optimized V-GMR head can he used for more than 40 Gbit/in2 areal density
Keywords :
giant magnetoresistance; magnetic heads; magnetic sensors; magnetoresistive devices; areal density; computer simulations; design rules; geometry; high-density recording head; vertical type GMR head; wafer level experiments; Computer simulation; Conductivity; Design optimization; Geometry; Magnetic domains; Magnetic films; Magnetic heads; Magnetic materials; Magnetic sensors; Micromagnetics;
Journal_Title :
Magnetics, IEEE Transactions on
