发明名称 METHODS OF FORMING MEMORY CELLS AND ARRAYS OF MAGNETIC MEMORY CELL STRUCTURES, AND RELATED MEMORY CELLS AND MEMORY CELL STRUCTURES
摘要 Methods of forming memory cells, magnetic memory cell structures, and arrays of magnetic memory cell structures are disclosed. Embodiments of the methods include patterning a precursor structure to form a stepped structure including at least an upper discrete feature section and a lower feature section with a broader width, length, or both than the upper discrete feature section. The method uses patterning acts directed along a first axis, e.g., an x-axis, and then along a second axis, e.g., a y-axis, that is perpendicular to or about perpendicular to the first axis. The patterning acts may therefore allow for more unifoimity between a plurality of formed, neighboring cell core structures, even at dimensions below about thirty nanometers. Magnetic memory structures and memory cell arrays are also disclosed.
申请公布号 US2014070342(A1) 申请公布日期 2014.03.13
申请号 US201213614212 申请日期 2012.09.13
申请人 SANDHU GURTEJ S.;KULA WITOLD;KINNEY WAYNE I.;MICRON TECHNOLOGY, INC. 发明人 SANDHU GURTEJ S.;KULA WITOLD;KINNEY WAYNE I.
分类号 H01L43/12;H01L29/82 主分类号 H01L43/12
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