1. Technical Field
Embodiments relate to semiconductor devices. More particularly, embodiments relate to a semiconductor device and a floating prevention method thereof, which may prevent a portion of signal line from floating when a signal line is an open state.
2. Description of the Related Art
Semiconductor devices, e.g., DRAM, etc., generally employ a redundancy scheme for replacing a defective memory cell with a spare memory cell.
For efficiency, in the redundancy scheme, a replacement may be obtained in a unit of a column selection line or a normal word line enable signal. For example, when a defective column selection line is replaced with a spare column selection line, the defective column selection line is maintained at a ground level.
However, e.g., when a line open state occurs in a defective column selection line, a portion of the defective column selection line may be in a floating state. Thus, electrical coupling with an adjacent column selection line may occur.