Discrete Mosfets/IGBTs mounting techniques ...

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Original poster: "Rajesh Seenivasan" <rajeshkvs-at-hotmail-dot-com> 

Hello experts,

I have few discrete power mosfets (TO-247 package) with me. I am planning 
to design high power inverter for tesla coils.
Some mosfets are capable of handling up to 40 Amps. But the problem is how 
do I mount those power mosfets in a PCB ?
Because, even though the mosfets can handle 40 Amps or even higher, the PCB 
tracks cannot handle that much current ?
Should I have tracks which are several inches wide ?
Are there any other mounting techniques for Power mosfets (other than PCB 
mounting) ?
Thanks in advance.