Now that the design is complete the engineer will need to design the PCB. Of course there are large currents and fast switching edges which lead to large transition swings. To alleviate ringing and reflections the engineer will need to reduce inductance in the connections, and the easiest way to do this is to make the tracks as wide and short as possible and reduce current loop lengths by keeping components as close together as possible. High frequency harmonics can be reduced by increasing the gate drive rise and fall times, but this is a trade off with switching losses. Decoupling capacitors should always be close to the component they are decoupling in order to reduce series reactance. Finally, ground planes under the wide tracks will create significant capacitance so beware.