http://www.mentor.com/pads/
請問有人用過這個軟體嗎？有沒有人破解呢？
PADS: the market standard for Windows-based complex PCB design
Surpassing all competition with its combination of value and broad technology, the PADS user-experience is like no other - right down to its unbeatable price. PADS PCB Design Solutions will make you want to leave your current design tools behind -- and with the value pricing of the new PADS Suites, it might be easier than you think. View flow diagram.