SEMICONDUCTOR DEVICE AND ELECTRONIC SYSTEM INCLUDING THE SAME

The invention discloses a semiconductor device and an electronic system. The semiconductor device includes: a stacked structure on a substrate and including gate electrodes and insulating layers alternately stacked; a first through hole extending through the stack structure; and a second through-hole spaced apart from the first through-hole, where the second through-hole extends through the stacked structure, where the second through-hole is electrically connected to the first gate electrode, the first gate electrode being a gate electrode farthest from the substrate in the vertical direction among the gate electrodes, where the second through-hole extends through the stacked structure. The gate pad is on and in contact with the first gate electrode, and the first through hole member includes: a vertical pattern; a first protrusion and a second protrusion protruding from the vertical pattern, in which the first protrusion overlaps a portion of the first gate electrode in a horizontal direction; and a second p