SEMICONDUCTOR DEVICES AND DATA STORAGE SYSTEMS INCLUDING THE SAME
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United States of America
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Feb 20, 2025
app pub date -
May 16, 2024
filing date -
May 16, 2024
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Abstract
A semiconductor device includes a plate layer; conductive layers spaced apart from each other in a first direction perpendicular to an upper surface of the plate layer on the plate layer, extending by different lengths in a second direction perpendicular to the first direction, and forming a staircase region; a gap-fill insulating layer on the staircase region; and vertical structures penetrating through the gap-fill insulating layer and the conductive layers in the staircase region and extending in the first direction, and wherein the gap-fill insulating layer includes voids disposed symmetrically with respect to at least one of the vertical structures or a center of the staircase region in a third direction perpendicular to the first direction and the second direction.
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