Semiconductor memory devices including protrusion pads

Disclosed is a semiconductor memory device may include a substrate including a cell array region and a contact region and a stacking structure including a plurality of insulating layers and a plurality of gate electrodes alternately stacked on the substrate. The stacking structure may include a step...

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Hauptverfasser: Jang, Se Mee, Kim, Kwang-Soo
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creator Jang, Se Mee
Kim, Kwang-Soo
description Disclosed is a semiconductor memory device may include a substrate including a cell array region and a contact region and a stacking structure including a plurality of insulating layers and a plurality of gate electrodes alternately stacked on the substrate. The stacking structure may include a stepwise structure in the contact region. Ones of the plurality of gate electrodes may include a respective pad unit that comprises a step of the stepwise structure. At least one of the pad units may include a base pad and a protrusion pad on the base pad. The protrusion pad may be between and spaced apart from two edges of a surface of the base pad that are perpendicular to an extension direction of the respective gate electrode.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
title Semiconductor memory devices including protrusion pads
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