Patent ID: 6344951
Filing Date: 2002-02-05
Classification: B82Y,G01R,G11B,H01L

Abstract:
A substrate having magnetoresistive elements, comprising:a lower shielding layer formed on a substrate, a lower gap layer formed on the lower shielding layer, a plurality of magnetoresistive elements each having a multilayer film exhibiting a magnetoresistive effect, electrode layers conducting to the multilayer film, and a processing monitor element having the same structure as the magnetoresistive elements, the magnetoresistive and processing monitor elements being arranged on the lower gap layer, wherein in addition to the lower gap layer, an insulating layer is formed between the monitor element and the lower shielding layer to be exposed from an air-bearing-surface (ABS) side, and the distance between the monitor element and the lower shielding layer on the ABS side is larger than that between the magnetoresistive elements and the lower shielding layer on the ABS side.