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    • 47. 发明申请
    • Electrical leads having ordered-phase crystalline structures for magnetoresistive sensors used in magnetic heads and fabrication method therefor
    • 具有用于磁头中的磁阻传感器的有序相晶体结构的电引线及其制造方法
    • US20060146453A1
    • 2006-07-06
    • US11363435
    • 2006-02-27
    • Michael ParkerMustafa Pinarbasi
    • Michael ParkerMustafa Pinarbasi
    • G11B5/127G11B5/33
    • G11B5/3906G01R33/09H01L43/08
    • A magnetic head including an electrical lead layer that is comprised of a material having an ordered-phase crystalline structure. In a preferred embodiment, the ordered-phase crystalline structure of the electrical lead is epitaxially matched to the crystalline structure of the hard bias layer upon which it is formed, and there is no need for a seed layer for the electrical leads. Electrical leads comprised of the materials used in the invention having an ordered-phase crystalline structure, particularly a B2, L10, L11, and L12 structure, will have significantly reduced resistivity over the prior art electrical leads that are typically composed of rhodium or tantalum. As a result, thinner electrical leads can be fabricated which carry the same, or even greater, current than the prior art rhodium or tantalum leads. The preferred leads are comprised of NiAl, FeCo, or CuZn having a B2 crystalline structure, and alternative embodiments are comprised of CuAu, Cu3Au, CuPt, and Cu3Pt.
    • 包括由具有有序相晶体结构的材料构成的电引线层的磁头。 在优选实施例中,电引线的有序相晶体结构外延地与其形成的硬偏压层的晶体结构匹配,并且不需要用于电引线的种子层。 由本发明中使用的具有有序相晶体结构的材料组成的电引线,特别是B2,L1,L1,L1和L1, SUB>结构将比通常由铑或钽组成的现有技术的电引线显着降低电阻率。 结果,可以制造更薄的电引线,其携带与现有技术的铑或钽引线相同或甚至更大的电流。 优选的引线由具有B2晶体结构的NiAl,FeCo或CuZn组成,并且替代实施方案由CuAu,Cu 3 Au,CuPt和Cu 3 Pt组成 。