发明名称 IMPROVED PLANARIZATION PROCESS
摘要 <p>A planarization process and the resulting structure are disclosed. Dielectric layers (22/24) are successively deposited over nonplanar first level contacts (18/20) and patterned to form interlevel vias where interconnect plugs to first level contacts are desired. A conductive layer (36) which fills the vias conformally is covered with a photoresist layer (38). The layers (38, 36, 24) are then etched at substantially the same rate to provide planarized contact plugs (28) which are planar with the interlevel dielectric (22/24).</p>
申请公布号 WO1989005038(A1) 申请公布日期 1989.06.01
申请号 US1988004131 申请日期 1988.11.18
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