发明名称 DRAM and MOS transistor manufacturing
摘要 A method for manufacturing DRAM cells in a semiconductor wafer including MOS control transistors and capacitors, the source/drain regions and the gates of the control transistors being covered with a protection layer and with an insulating layer, in which the capacitors are formed at the level of openings formed in the insulating layer which extend to the protection layer covering the gates, and in which first capacitor electrodes are connected to source/drain regions of the control transistors by conductive vias crossing the insulating layer and the protection layer.
申请公布号 US6800515(B2) 申请公布日期 2004.10.05
申请号 US20020304580 申请日期 2002.11.26
申请人 STMICROELECTRONICS S.A. 发明人 PIAZZA MARC
分类号 H01L21/314;H01L21/8242;H01L27/06;H01L27/108;(IPC1-7):H01L21/336;H01L21/824;H01L21/20;H01L29/76;H01L29/74 主分类号 H01L21/314
代理机构 代理人
主权项
地址