Dynamic memory device having a vertical transistor

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

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257296, 257328, H01L 2910, H01L 2972

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active

054142890

ABSTRACT:
A vertical transistor (10) has a substrate (12) and a control electrode conductive layer (18), which functions as a control or gate electrode. A sidewall dielectric layer (22) is formed laterally adjacent the control electrode conductive layer (18) and overlying the substrate (12). The conductive layer (18) at least partially surrounds a channel region (30). A vertical conductive region is formed within a device opening wherein a bottom portion of the conductive region is a first current electrode (28). A middle portion of the vertical conductive region is the channel region (30). A top portion of the vertical conductive region is a second current electrode (34).

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