Design optimization of planar type write heads for ultra high density magnetic recording

摘要

The present invention relates to the method of optimizing of planar type write heads for ultra high density magnetic recording. More particularly, the invention relates to a planar type write head for an ultra high density drive which can record information on a medium with high magneto-crystalline anisotropy. ;One of the most serious problems for high density recording is thermal fluctuation and this problem can be solved by using a medium with high magneto-crystalline anisotropy. However, this requires a write head capable of generating a high write field ;According to the present invention, the method of optimizing a planar type write head for ultra high density magnetic recording comprises the step of optimizing the characteristics of the write head by changing the shape parameters of the write head using the first, second a0nd third type shape control methods.