"In this paper, we have simulated and analyzed the
effect of fingers, device-width and main power supply (Vdd) on
gate feedback charge (Qgd) and switching time of LDMOS by
gate charge test circuit simulation. Gate feedback charge is the
charge which is required to fill the gate-drain “Miller”
capacitance. Smaller area will have smaller charge and switching
time. It has been seen in our simulation that gate feedback
charge (Qgd) and switching time increased more linearly with
device width rather than no. of fingers and main power supply
(Vdd). We have successfully simulated that to improve the
device’s power by increased the area, multi finger design is
better than the width extension due to the lower gate feedback
charge and faster switching time."
Relation:
2012 International Conference on Optoelectronics and Microelectronics (ICOM)
