The self-oscillation of CMOSs aforementioned happens from the stray capacitance between the IC junctions (junction capacitance) of CMOS semiconductor structure as illustrated which is shown in figure 4.11. Equation 4.1 shows the finding of the voltage at the G point ( ), of which the state is stable = , and where and are very low values that may then be neglected. The voltage drop at the G point ( ) is half the value of , while the output voltage swings from to ground if this voltage is of higher value than the set-point operation of the MOSFET device ( and ).