发明名称 Method and structure for metal-insulator-metal capacitor based memory device
摘要 A process for integrally fabricating a memory cell capacitor and a logic device is disclosed. A first conductive layer and second conductive layer are formed above a semiconductor substrate with a logic region and memory cell region. A first photoresist layer is formed to cover the logic region, and expose an inter-metal dielectric layer adjacent to the second conductive layer in the memory cell region. The exposed inter-metal dielectric layer is etched off to form an opening adjacent to the second conductive layer. A capacitor dielectric layer and third conductive layer are formed on inner walls of the opening to constitute a metal-insulator-metal capacitor.
申请公布号 US2006189072(A1) 申请公布日期 2006.08.24
申请号 US20050064894 申请日期 2005.02.23
申请人 TAIWAN SEMICONDUCTOR MANUFACTURING CO. 发明人 TU KUO-CHI
分类号 H01L21/8242;H01L21/20 主分类号 H01L21/8242
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