Importance

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Abstract

A memory structure includes randomly accessible, channel-all-around ferroelectric memory transistors organized as horizontal NOR memory strings. The NOR memory strings are formed over a semiconductor substrate in multiple scalable memory stacks of thin-film ferroelectric memory transistors. The three-dimensional memory stacks are manufactured in a process that includes forming holes in a multi-layer film stack for forming local word line structures and slit trenches to divide the film stack into memory stacks including local word line structures formed therein. The memory structure of channel-all-around ferroelectric memory transistors enables a scalable construction for realizing a high density, high capacity memory device.

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First Claim