MAGNETO-RESISTANCE EFFECT TYPE HEAD, ITS MANUFACTURING METHOD, AND MAGNETIC RECORDING/REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce damage during patterning of a magneto-resistance effect sensor film, and failures caused by current leakage between upper and lower shields in a magneto-resistance effect type head of a CPP structure. SOLUTION: In the magneto-resistance effect type head of the CPP structure, at least a part of a boundary between a lower shield layer 10 and a nonmagnetic film 11 formed around it is covered with an insulating protective film 20, and an area of the lower shield layer exposed to the surface of a substrate during patterning of a magneto-resistance effect sensor film is reduced. COPYRIGHT: (C)2003,JPO