US Patent 9324715 Flip-flop layout architecture implementation for semiconductor device

A semiconductor device includes a substrate including PMOSFET and NMOSFET regions. First and second gate electrodes are provided on the PMOSFET region, and third and fourth gate electrodes are provided on the NMOSFET region. A connection contact is provided to connect the second gate electrode with the third gate electrode, and a connection line is provided on the connection contact to cross the connection contact and connect the first gate electrode to the fourth gate electrode.