发明名称 CAPACITY ELEMENT OF MIM STRUCTURE AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE HAVING THE SAME
摘要 PROBLEM TO BE SOLVED: To raise a capacity value (capacitance density) of the capacitive element of MIM structure which is provided per a unit area, when it is formed on a semiconductor substrate, and to reduce the size of a semiconductor integrated circuit device comprising the capacitive element of MIM structure. SOLUTION: On a semiconductor substrate, a first metal film, first insulating film, second metal film, second insulating film, and third metal film are laminated sequentially, with the first and third metal films electrically connected together. A first capacitor comprising the first metal film, first insulating film, and second metal film, and a second capacitor comprising the second metal film, second insulating film, and third metal film are connected in parallel. A capacitor intrinsic part which functions as a capacitance of the second capacitor is provided inside the capacitor intrinsic part which functions as capacitance of the first capacitor.
申请公布号 JP2001102529(A) 申请公布日期 2001.04.13
申请号 JP19990275282 申请日期 1999.09.28
申请人 HITACHI LTD 发明人 KUROKAWA ATSUSHI
分类号 H01L27/04;H01L21/822;(IPC1-7):H01L27/04 主分类号 H01L27/04
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