IP & T Group LLP
Semiconductor memory device
A semiconductor memory device includes a cell array region formed on a substrate, a word line contact region, and a page buffer region coupled to the cell array region through bit lines, wherein at least one of the bit lines has a curved structure toward the word line contact region. According to an embodiment, a misalignment between a cell plug and a contact plug caused by a natural cell plug bending phenomenon may be reduced to improve operational reliability of a semiconductor memory device.
SK Hynix Inc.
G H H H H H H G G H H G
G11C H01L H01L H01L H01L H01L H01L G11C G11C H01L H01L G11C
inventional inventional inventional inventional inventional inventional inventional additional additional inventional inventional additional
Yung Jun Suk Goo
Kim Kim