发明名称 |
Semiconductor memory device and method of manufacturing the same |
摘要 |
In a semiconductor memory device having cylindrical capacitors, word lines and a bit line are formed on a semiconductor substrate. A cylindrical storage node is connected to a conductive layer. The cylindrical storage node is provided at its inner wall with protruded conductive conductors which protrudes in a radially inward direction of the cylindrical storage node. A surface of the cylindrical storage node is covered with a capacitor insulating film. The outer surface of the cylindrical storage node is covered with a cell plate with the capacitor insulating film therebetween.
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申请公布号 |
US5892702(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19960710901 |
申请日期 |
1996.09.24 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
OKAMOTO, TATSUO;HACHISUKA, ATSUSHI;ARIMA, HIDEAKI;KINOSHITA, MITSUYA |
分类号 |
H01L27/04;H01L21/822;H01L21/8242;H01L21/8246;H01L27/10;H01L27/105;H01L27/108;(IPC1-7):G11C11/24 |
主分类号 |
H01L27/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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