Method for fabricating a capacitor cell in the semiconductor memory device having a step portion

作者: Young K. Jun

DOI:

关键词: Node (circuits)Plate electrodeElectrical engineeringTransistorOptoelectronicsDielectricElectrodeSemiconductor memoryMaterials scienceCapacitorCapacitance

摘要: A semiconductor memory device including a plurality of cells arranged in matrix manner, each the transfer transistor constituted by gate electrode, insulating film, source region and drain region, charge storage capacitor node, dielectric film plate node cylindrical lower electrode formed above via an layer on connected to one transistor, cover type upper with electrode. By composite structure having cylinder shape structure, it is possible utilize efficiently three-dimensional space thereby achieve increase capacitance.

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Howard E. Rhodes, Hiang C. Chan, Yauh-Ching Liu, Chuck H. Dennison, Pierre Fazan, Process to fabricate a double ring stacked cell structure ,(1991)
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