Patent ID: 7426096
Filing Date: 2008-09-16
Classification: B82Y,G11B,H01F,H01L

Abstract:
1. A magnetoresistive effective element comprising a first shielding layer, a second shielding layer, a magnetoresistive effective film, a first gap film, a pair of second gap layers, a pair of magnetic domain controlling layers, and a bottom electrode layer, said first shielding layer and said second shielding layer being separated by a given distance, said magnetoresistive effective film being disposed in between said first shielding layer and said second shielding layer, said first gap film being made of electrical conductive material, and formed on said magnetoresistive effective film commensurate with a surface configuration of said magnetoresistive effective film, said magnetic domain controlling layers surrounding and extending along both sides of said magnetoresistive effective film, respectively, said bottom electrode layer being electrically connected to said magnetoresistive effective film on a side away from said first gap film, the bottom electrode layer constituting one of the pair of second gap layers, said second shielding layer functioning as a top electrode layer electrically connected to said first gap film, and the second shielding layer constituting the other of the pair of second gap layers, wherein a total thickness of said magnetoresistive effective film and said first gap film is larger than a thickness of the magnetic domain controlling layers to suppress the effects of a defective side lobe, and surfaces of said second shielding layer corresponding to said magnetic domain controlling layers extending along both sides of said magnetoresistive effective film are formed closer to said bottom electrode layer than a surface of said magnetoresistive effective film on which said first gap film is formed.