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    • 58. 发明申请
    • METHOD OF FABRICATING A MAGNETIC SHIFT REGISTER
    • 制造磁性移位寄存器的方法
    • US20080241369A1
    • 2008-10-02
    • US12114636
    • 2008-05-02
    • Tze-chiang ChenStuart S.P. Parkin
    • Tze-chiang ChenStuart S.P. Parkin
    • B05D5/12
    • H01L29/82G11C11/14G11C19/02G11C19/0808G11C19/0841
    • A magnetic data track used in a magnetic shift register memory system may be fabricated by forming a multilayered stack of alternating dielectric and/or silicon layers. A trench is etched in the multi-layer stack structure. A selective etching process is used to corrugate the walls of trench. A seed layer is applied to the walls and bottom of the trench; the seed layer is covered with a magnetic layer. The trench is filled with an insulating material. A patterned layer is applied and portions of insulating material exposed by the pattern are removed, forming holes. Magnetic material and seed layer exposed in holes is selectively removed. The holes are filled with insulating material and connecting leads are attached to data tracks.
    • 用于磁移位寄存器存储器系统的磁数据磁道可以通过形成交替的电介质层和/或硅层的多层叠层来制造。 在多层堆叠结构中蚀刻沟槽。 使用选择性蚀刻工艺来使沟槽的壁波纹化。 种子层施加到沟槽的壁和底部; 种子层被磁性层覆盖。 沟槽填充绝缘材料。 施加图案层,去除由图案露出的部分绝缘材料,形成孔。 选择性地除去暴露在孔中的磁性材料和种子层。 孔中填充绝缘材料,连接引线连接到数据轨道。