Samsung electronics co., ltd. (20240258328). INTEGRATED CIRCUIT DEVICE
INTEGRATED CIRCUIT DEVICE
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INTEGRATED CIRCUIT DEVICE
This abstract first appeared for US patent application 20240258328 titled 'INTEGRATED CIRCUIT DEVICE
Original Abstract Submitted
an integrated circuit device is provided. the device includes: lower source/drain areas; lower contacts respectively on bottom surfaces of the lower source/drain areas; upper source/drain areas spaced apart from the lower source/drain areas in a vertical direction; upper contacts respectively on upper surfaces of the upper source/drain areas; and a first vertical conductive rail electrically connected to a first contact of the lower contacts and the upper contacts, the first vertical conductive rail extending in the vertical direction, and including a first portion having a first upper surface at a first vertical level and a second portion having a second upper surface at a second vertical level lower than the first vertical level. the second portion overlaps a first upper contact among the upper contacts in the vertical direction.