发明名称 SELF-ALIGNED LOWER BOTTOM ELECTRODE
摘要 A method of fabricating a lower bottom electrode for a memory element and a semiconductor structure having the same includes forming a dielectric layer over a semiconductor substrate having a plurality of conductive contacts formed therein to be connected to access circuitry, forming a dielectric cap layer over exposed portions of the dielectric layer and the conductive contacts, depositing a planarizing material over the dielectric cap layer, etching a via to an upper surface of each conductive contact, removing the planarizing material, depositing electrode material over the dielectric cap layer and within the vias, the electrode material contacting an upper surface of each conductive contact, and planarizing the electrode material to form a lower bottom electrode over each conductive contact.
申请公布号 US2012139119(A1) 申请公布日期 2012.06.07
申请号 US201213369655 申请日期 2012.02.09
申请人 BREITWISCH MATTHEW J.;INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BREITWISCH MATTHEW J.
分类号 H01L29/45 主分类号 H01L29/45
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