pcb??????????????????????
????????PCB????????????????????????????????????????IC????????????????????????

??????????????PAD???????????PCB????????????????POHTOSHOP?????????????????????

?????????TOP LAYER ?BOTTOM LAYER???????????????????????PHOTOSHOP?????????????????PCB?????????????????????????????????????600?

?????????????????????????????????????????????????????????????????????????????????BMP????TOP.BMP?BOT.BMP???????????????????????????38.64????BMP?PCB????????????BMP?????????????????????????BMP?PROTEL?????????????

???????BMP?????????PROTEL??????PROTEL???????????PAD?VIA?????????????????????????????????

?????TOP?BMP???TOP?PCB???????SILK??????????????TOP??????????????????????????SILK????

?????BOT?BMP???BOT?PCB???????SILK??????????????BOT???????????SILK????

?????PROTEL??TOP?PCB?BOT?PCB?????????OK??

???????????TOP LAYER? BOTTOM LAYER???????????1?1????????????PCB????????????????????????

??????????????????????????????????????
???????????,pcb???,pcb?,pcb??