Patent ID: 7245460
Filing Date: 2007-07-17
Classification: G11B,H01L,Y10T

Abstract:
1. A magnetoresistive effective type device comprising: a magnetoresistive effective film element having an air bearing surface, a top surface substantially perpendicularly continued from said air bearing surface, side surfaces continued from said top surface and a rear surface continued from said side surfaces opposite to said air bearing surface, an entire surface area of the magnetoresistive effective film element forming the air bearing surface lying in a plane of the air bearing surface, a magnetic biasing layer to apply a biasing magnetic field for said magnetoresistive effective film element which is formed so as to be contacted completely over said side surfaces of said magnetoresistive effective film element, a pair of electrode layers to flow a current for signal detection in said magnetoresistive effective film element, the electrode layers being formed so as to be contacted with at least one portion of said rear surface of said magnetoresistive effective film element, and a planarizing film formed only at the opposite side of the magnetoresistive effective film element to the air bearing surface, without being formed beneath the magnetoresistive effective film element, the planarizing film formed so as to be contacted with a lower portion of said rear surface of said magnetoresistive effective film element, wherein said pair of electrode layers are formed on said planarizing film.