| 摘要 |
The surface roughnes of a back plate (1) made out of CaTiO is reduced by a lapping and SOG treatment. A bias electric conductor (4) is made by vaporizing aluminium in a thickness a 1 μm on the back plate (1) and by etching and then, SiO2 in the thickness of 0.5 μm is sputtered on the electric conductor (4) for insulation. A magnetoresistive element (3) is made by sputtering permalloy in the thickness of 400 ∦. After forming a pattern, a barb pole (2) is made by etching vaporized layer of Cr 500 ∦ and Au 1 μm at an angle of 45-65≦̸. A magnetoresistive head is made by glass bonding a protective back plate having 10 μm of alumina.
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