Magnetoresistive head and its manufacturing method.

摘要

In a magnetoresistive head capable of performing favorable magnetic recording and reproduction, an overlap amount of a front yoke and a magnetoresistive element is always greater than an overlap amount of a back yoke and the magnetoresistive element. Generally, the magnetoresistive head varies in its reproduction efficiency by the overlap amount of the yoke and magnetoresistive element. In particular, the reproduction output is significantly affected by the overlap amount of the front yoke and magnetoresistive element, and when the overlap amount of the front yoke becomes smaller than the overlap amount of the back yoke, the reproduction output tends to decrease abruptly. Therefore, by keeping the overlap amount of the front yoke always greater than the other, a stable reproduction output can be achieved. In particular, an outstanding effect is obtained in a multi-channel magnetoresistive head containing multiple magnetoresistive elements in one head.