I would like to learn PCB design software to be able to design my own BGA s=
tencil.
Can you please reply to my questions:

What PCB design software   you use and why
What PCB design software you would suggest to start with=20
Are there any GOOD tutorials for that kind of PCB design software
Are there any support forums for that kind of PCB design software
?

Thank you for your help
--=20
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