PROTEL?à??????
1.???í???????í?ó??
?¨1??ERC±¨????????????????????
a. ???¨·?×°?±???????¨????I/O??????
b.???¨?????ò·????????±??????????????grid????????????????????????
c. ???¨?????±pin·??ò·??ò??±???·?pin name????????
?¨2??????????????????????????????????±í?????????¨??????
?¨3?????¨???¤??????????±í??????·??÷??pcb???ú??netlist?±??????????global??
?¨4???±????×??????¨???à??·?×é?????????±???§?ò????????annotate.
2.PCB???????í?ó??
?¨1???????????±±¨??NODE??????????
a. ???í????????????????pcb??????????·?×°??  
b. ???í????????????????pcb????????????????·?×°??
c. ???í????????????????pcb????pin number????????·?×°????????????sch??pin number ??e,b,c, ??pcb????1??2??3??
?¨2???ò???±×????????ò??????????????
a. ???¨pcb???±????????????  
b. ?à??????????×?????????pcb°?????????????×?·????????????ù????????×?·??? ????pcb, ???ó????×?·???±???????
?¨3??DRC±¨??????±?·?????????·???
±í?????????????????¨????±¨????????????????CONNECTED COPPER?é????
?í???á???ó??????????WIN2000, ???????????ú?á???à??????????????×???????DDB????????????????????PROTEL???????ú?á??????×÷?????????è????????????????×?????????
  
??PCB?è?????????????ê???ú?·?è???????????è?????????°????×?±??¤×÷???????ü??×????? ??????PCB?????????????è?????????¨×?????????×??????¤×÷??×??ó??PCB???????????????? ?????????°?à??????????????·?????????????×????????°??????????????×??????????°?? ?????????????¤???????ó±?????????????????????????????????????±?????±????à???????? ?????ú?ú·?????????±????±?????????????????à???????????????à???±?????????×?ú?ú???ú??????
  
×????????????¨?????????????????????????????ò?????¤???è?¨?? °ü?¨×????????ú?????????¨?×????????????????????????°??????????÷???????????ì????°????????¨?? ???ó??????????????????°??????????????????????????·?????????ü?????ù???è???????????????? ????×???????????????????×????§????
  
?????°????????PCB?è???????????á?¨?×???????????? ?ü??·????í?à±??ó???????¨???????????????????????????¤?×?????×???????ü?????ê???????¨?×??×÷???? ???????í?à?????¨?????????????ê?????ü??·?±????ü???÷?????ü???ê????PCB °????è?????????????????????ò?????????????????????????ü?????è???ó??×??¤???è?????±??×??????á?? ????????????????????
  
PCB LAYOUT×???????
  
1 ???????????????í
  
??????????PCB°??????????ê???????????????????????? ???????????????????????????????á???ú?·???????????????±?????°?ì???ú?·???????????ù???????? ??????????????????????°??????????ù?ú?ú??????????????×???????????±??¤?ú?·????????
  
????????????×??ú?·?è?????¤?????±???????÷°×?????????????????????ù?ú?ú?????ò?? ????????????????????×÷??±í????
  
???ù??????????????????????????????????????
???????í???????????í????×?????????±????????í???ü???????????????????????????????????¨?????????í????0.2??0.3mm,×??????í??????0.05??0.07mm,????????1.2??2.5 mm
????×????·??PCB?????í????????×é?????????·, ????????????????????(???????·???????????ù????)
???ó????????×÷??????,??????°???°???±?????????·????????à????×÷???????????ò??×????à??°??????????????÷??????????
2????×????·?????????·?????????í
  
???????í?àPCB?????????????????·?¨??×??ò???????·????????????×????·?????????·?ì???????????ò?????????±???è???????ü?????????à????????????±?????????????????????
??×????·?????????????????·?????????????????????????????????????????????????????????????·?÷????????????????????PCB???????????????á?????ù??±?????PCB???????????í??????????????????????°???????×???????????????????·??????ü???????????à??????????PCB???????????????????¨?????·????????×?????????????????????????×???????????????????????????PCB?????????????????????è???????¨??
  
3???????????????¨????????
  
???à??????°??????±???????????????????????ê???????????????à?????à?????????á?ì????·????á???ú?ú???????¨???¤×÷??????±????à???????????????????????????????????????¨???????????????????×?????????????????????????????????ò??×?????±??????????ê??????
  
4???ó?????????????????????í
  
???ó???????????¨???????????????÷?????????????????????????????í?è??????×??????????????????????????????????????????????ú??????????????????????×°???????????????????????????????è???ó?????????÷???????×?ì???é???????ù?????????????????¤???è????×?????×??¨???????????????????¨heat shield???×?????????¨Thermal???????ù?????????????±?ò??????·????????ú?ú?é?????????????ó?ó???????à??°????????¨?????????????í?à????
  
5??????????????????×÷??
  
???í?àCAD?????????????????????????????¨???????????????¨?·???????ù?????????????????????????????????ó????±??????è±??????ü???????ü???????ó?????±?????ó?????ú?à??×??ú?·???????????????ó???°?ì?????????¨?·?????§??????±????????????????????ò±?°?×°?×???¨???×?ù?????????????????è???¨?·?????????¨?????°?ì???ó???ù???????????è?????í?????????????§??????????????
  
±ê×????÷?????????????à????0.1????(2.54mm),?ù?????????????ù????°????¨??0.1????(2.54 mm)?ò????0.1????????±?????????0.05??????0.025??????0.02????????
  
6???è?????ò?ì?é?¨DRC??
  
?????è???ê???ó???è?????ì?é?????è????·?·????è?????ù???¨?????ò?????±???è?·???ù???¨?????ò??·?·???????°??ú?ú?¤?????è?ó????°??ì?é??????????·?????
  
???????????????????????????á?¨?×?????????????á?¨?×???á?¨?×???á?¨?×???????à????·????í????·??ú×??ú?ú???ó??
???????????????í????·???????????????????????·????????¨?????¨×è????????PCB????·????????????????í????·???
???????ü??????????·???????×????????????¤??×???????±??¤???????????°??????±??÷????·?????
???????·????×????·??·?????·????÷×?????????????
?ó????PCB?????????¨????±ê??×?±ê????·??á?ì?????????·??
?????????í??????????????????
??PCB????·??????¤??????×è????·?·????ú?ú?¤???????ó??×è????????·???????×?·?±ê????·??????÷???????????????°?ì??×°??????
?à??°??????????????????ò±?????·???????????????????????????°??????×?ì?????·??????
±??????????????????÷????PADS??????°??è???í??PowerPCB????????°??è?????÷????????×????????????????¤×÷×é???è?????±?á???è????·???·?±??è?????±???????????÷???à???ì?é??
  
2???è???÷??
PCB???è???÷??·?????±í?????????ò?è???????÷???????????????ì?é?????é???????ù?????è.
2.1 ??±í????
??±í??????????·?·¨????????????PowerLogic??OLE PowerPCB Connection??????????Send Netlist??????OLE?????????????±±??????í????PCB?????????????????????í?????????í????·?·¨???±????PowerPCB??×°????±í??????File->Import???????í???ú??????±í??????????
2.2 ???ò?è??
?????????í???è???×????????°?PCB???è?????ò?è???????°???????????????è??
???????ò?????ò????????±í?±???è?????ò??????±í??????PowerPCB???????????????è?????ò??±??????????í????±??¤???í????PCB?????????????è?????ò?????¨?????????????????ò?è???è????±???Pad Stacks???è??????±ê×????×???ó?????????è???????¨???????????ò???×?????¨??????Layer 25??
×?????
PCB?è?????ò?????¨???????×?è????CAM?????è??????×÷???±??????????????????Default.stp????±í???????????ó??°????è?????????é????°?????????????·??????????????????????è?????ü???????ò?????ù???????ò???è???????ó????PowerLogic????????OLE PowerPCB Connection??Rules From PCB???????ü?????í?????????ò?è????±??¤???í????PCB???????ò??????

2.3 ???÷??????
??±í???????ó???ù???????÷?????á·????¤×÷???????????????????????????????¤×÷????°????????÷??·?????°??????????ò°?·????????????÷????????PowerPCB?á????????·?·¨?????¤??????×?????????2.3.1 ???¤????
1. ?¤??????°????á??????????°?±??¨Board Outline????
2. ?????÷??·????¨Disperse Components???????÷???á??????°?±??????§??
3. °????÷????????????????????×???·???°?±???????°??????¨?????ò°?·???????
2.3.2 ×???????
PowerPCB?á????×?????????×??????????????????????ó?à?????è?????????§???????í????????????????2.3.3 ×???????
a. ???????×?????ò??±??¤?????????¨?????????÷???±×???·???????????°??????????????÷??·???????
b. ??×??÷?????????÷????·?????????????
c. ???????????????ü?÷????VCC
d. ·????÷???±?????????ó??????????????????
e. ?à?????í???á????Array??Union???????á?????????§??
  
2.4 ????
??????·????????????????¤??????×?????????PowerPCB?á???????¤??????????·????ó??°ü?¨×??????·???????è?????ò?ì?é?¨DRC????×?????????Specctra?????????????????¨????????·?·¨???????????????????è?????¤??×????????¤??
2.4.1 ???¤????
1. ×????????°?????????¤??????????????????±????????±?????÷?????????????????ù?ù??×????à???????í???????à????±??????????????ó???í??????????·?×°????BGA??×????????????????????ò???????????¤??????
2. ×??????????ó???????????¤??????PCB??×????????÷????
2.4.2 ×???????
???¤?????á?????ó??????????????????×????????÷??×?????????Tools->SPECCTRA??????Specctra?????÷?????????è????DO??????°?Continue????????Specctra?????÷×??????????á???ó???????¨????100%???????????????????¤?÷??????????????????100%?????÷?????ò???¤?????????????è???÷???????ò???¤???????±?????????¨??????
  
2.4.3 ×???????
a. ????????????????????
b. ??????????????VCC?±??????
c. ?è??Specctra??DO?????±???×???í??Protect all wires?ü????±??¤???¤????????±?×????????÷????
d. ???????ì?????????????????????¨????Split/mixed Plane???????????°????·????????ê?????ó??????Pour Manager??Plane Connect????????
e. ???ù?????÷???????è??????????·?????×?·¨????Filter?è??Pins???????ù??????????????????????Thermal?????°?ò??
f. ?????????±°?DRC?????ò?????????????????¨Dynamic Route??
  
2.5 ?ì?é
?ì?é???????????à?¨Clearance???????????¨Connectivity???????????ò?¨High Speed???????????¨Plane????????????????????Tools->Verify Design???????????è???????????ò??±????ì?é??·??ò?????????????????ì?é???í?ó??±???????????????????
×?????
?????í?ó??????????????????????????Outline??????·?·?????°??ò?????ì?é???à?±?á???í???í????????????×????????×???ó????????????????????
2.6 ???é
???é?ù???°PCB?ì?é±í?±??????°ü?¨?è?????ò?????¨???????í?????à???????????×?è???????????????é?÷???????????í????????????????????×??????????±????????×???????±?????????????°?·??????????????é?????????è?????????????????????????????ó?????é?????è????·?±???×???
  
2.7 ?è??????
PCB?è?????????????ò???ú?ò???????????????ò???ú????°?PCB·????ò????±????è?????????é???ì?é????????????????°??§?????ú?ú????°???????????????????·??????????????????è??????°?????????×??????÷??????????????×?????????
a. ?è???????????????????¨°ü?¨???????×?????????????????????????¨°ü?¨VCC????GND?????????????¨°ü?¨???????????×??????????×è?????¨°ü?¨????×è?????×??×è???????í???????ú??×ê?×?????¨NC Drill??
b. ???????????è????Split/Mixed????????Add Document?°????Document??????Routing?????????????????????????°????????PCB??????Pour Manager??Plane Connect???????????????è????CAM Plane???ò????Plane?????è??Layer?????±?ò????°?Layer25????????Layer25????????Pads??Viasc. ???è±??è???°???¨°?Device Setup??????Aperture????????199
d. ???è????????Layer?±????Board Outline????
e. ?è??????????Layer?±??????????Part Type???????????¨?×??????????????Outline??Text??Line
f. ?è??×è??????Layer?±?????????×±í?????×??????×è???????????×±í????×è???????????é???·?¨
g. ?ú??×ê?×?????±??????PowerPCB???±???è????????×÷????????
h. ?ù?????????????????ó????CAM350?ò?????ò???????è?????????é???ù???°PCB?ì?é±í?±?ì?é
???×?¨via?????à??PCB??????×é????·???????×ê?×??·????¨????PCB??°?·?????30%??40%???ò??????????PCB???????????×???????????????×????×÷???????????×????·??????à????????×÷?÷??????????????????????×÷?÷???????¨?ò?¨???????????¤?????????????????????×??°???·??????à?????¤?×(blind via)?????×(buried via)???¨?×(through via)???¤?×???????????·°??????????×??±í???????????¨??????????±í?????·???????????????·?????????×???????¨???????????¨??±???(?×??)?????×???????????????·°????????????×???ü???á???ì?????·°???±í???????????à?×?????????·°??????????????°?????¨?×?????¤???ê?????????×?????????????????á????×????????????????????????¨?×???????×???????????·°??????????????????????ò×÷????????°?×°?¨???×???????¨?×???¤?????ü?×??????????±????????ù?????ó??·????????·°??ù?????ü?????????í?????????×???????ù???????×?????????????÷?????ù×÷???¨?×??????
???è?????????????????????×?÷??????????·?×é??????????????×ê?×?¨drill hole??,????×ê?×???§????????????????????????·????????ó?????¨?????×???ó??????????????????,????????PCB?è???±???è????×??????????×?????????????ù°????????????ü?à?????????????????????×????????×??í?????ú?????????????ü???????????????·?????×?????????????±????????±????????????????×???????????????????????????ü????×ê?×(drill)???????¨plating?????¤???????????????×??????×ê?×?è?¨·????±?????¤?????????×?????????????????±?×??????????×ê?×?±????6±??±??????·¨±??¤?×±????ù????????±??????????????????é6??PCB°????????¨?¨?×????????50Mil×ó?????ù??PCB?§?????á????×ê?×?±??×???????????8Mil??

???????×?????ú????
???×±??í????×??????????ú?????????????????×?????????????????×?±????D2,???×???????±????D1,PCB°?????????T,°??ù???é??????????,?ò???×?????ú?????ó???ü??????
C=1.41??TD1/(D2-D1)
???×?????ú?????á?????·?ì?????÷???°?ì?????¤?????????????±?????????????·?????????????????????????é??????50Mil??PCB°?????????????????10Mil???????±????20Mil?????×???????????????????à????32Mil,?ò?????????¨?????????????ü?????????×?????ú?????ó??????C=1.41x4.4x0.050x0.020/(0.032-0.020)=0.517pF??????·????????????????±??±?????????T10-90=2.2C(Z0/2)=2.2x0.517x(55/2)=31.28ps ?????????????????????????????????×?????ú????????????????±??????§?????????÷????????????×??????à?????????×?????????????????è???????????÷??????????
  
???????×?????ú????
???ù?????×???????ú?????????±??????×????ú??????????????×????·???è?????????×?????ú???????????????ù?ù?ó?????ú???????°?ì???ü?????ú?????????á?÷?????·???????±?×???????????????????????¨?§???????????????????????????ò???????????????×?ü???????ú??????
L=5.08h[ln(4h/d)+1]????L?????×????????h?????×???¤????d??????×ê?×???±???????????????????????×???±???????????°?ì???????????????°?ì×??ó???????×???¤????????????????????×????????????????×??????????L=5.08x0.050[ln(4x0.050/0.010)+1]=1.015nH ?????????????????±????1ns???????????§×è???ó??????XL=??L/T10-90=3.19???????ù??×è?????????????÷???¨????????????±?????????±???×????????·?????????????????????????±?ò?è???¨?????????×?????ù???×?????ú???????á??±???????
  
????????PCB???????×?è??
?¨???????????×???ú??????·?????????????????????????PCB?è???????????ò??????
?×?ù?ù???á?????·???è?????????ó???????§???????????????×?????ú?§?????????????°?ì?????è????????????×?????
1??????±?????????????·????????????????í?????????×?ó????±?????6-10??????
?????éPCB?è????????????10/20Mil?¨×ê?×/???????????×??????????????????????????????°?×?????????????????8/18Mil?????×?????°?????????????????????ü???????????×?????????????ò?????????×?ò???????????????ó????????????×è????
2????????????????????????????????????±???PCB°??????????????×????????
?ú??????
3??PCB°?????????×?????????????????????????????????????±????????×??
4?????????????????????ü?ò???×?????×???????????????????????????ò???ü???á
???????????????????±????????????????????????????????×è????
5?????????????????×???ü·????????????????×????±????????á??×??ü?????·????????????PCB°????ó??·????????à?à?????????×???±???????è???±???è???é???à±????°???????????×???????????ù?????????é???????????±?ò????????????????????????????????????????±????????×????·????ó???é???????????á???????????????????????????·???????????????ù?????????????????×???????????????????????????×??????????????????????????

???????????·?????????á???è??????
  
???????¨?????????????÷???????????????????÷???????í?????·???????????·°?????????????????????·??ò?????·?á???è???????¨???÷??·??????¤×÷?????????ü?????????????????????????????·???????????????è????????????·??ò???????á?ú?ú???????á???????á?????????????ó?????ì???ò????±???°????????·?è?????????·°????????????á???????·????????·??ò?°???????÷???¤???á????·????????????????????í???¤???á?????????????ò???????±???ú?ú?????ù?????????±±????ú?ú????°?×°???÷?????ì??????
  
???????????????????????????????????????????°?á???±???????????????°?¨???±???°?????±???ò?????????????????××???????×÷???????????????????????÷???á??±????ù?????????ó?¨?????????????ú?á??°?×°?°??°??????????ó?????????à?????á???è??·?°????????????????è??·?°?????±?????·?????????????°?????????×??????????á??????----?????á???????????·????×????·???????????????è????????·?·¨?????í?à?à?????????????????????·????????·??ó?÷???????????????ú?ú?????????ù?????????á???????????????????§????????×????·????TTL???ù??????0.4V??0.6V,CMOS???ù??????Vcc??0.3??0.45±?,????×????·??????????????????????????????????????×???·????????í?????????÷?????¤×÷??????±??¤???à?±?à???????????¨??????????×????ú?ú?????????????????????ù????×??ó??
  
???????????????·°????è?????ù±????ò???ó
?????±?????????·°????è???????·?¨°????????ó???????????????·°????????ò???ú???????ó????????????????°?·??????????????????????????????????·°??????????÷???¨?÷?????????÷???????ò?í?????????·°?????????·????????????·°?????????????°????¨???????????ò?????????????????????????±???è??????×ù?????????????è±???°?×°?????????????????·°??????????±????????????????????°?×°?????????·°????????ó???????????????????????¨?????á?????????????÷??????
???????????????è?????ù±?·?·¨
?????×???è?????ù?????????÷?°?÷????×ù???????????????????????ê?????????????÷??????????°???×÷???í????×????????????÷??????????????????????????????????×??????????????????????????·???°??????·??????????÷?????????¨???ó???????÷????????????°??????·?????????????????ê????·?·¨???à???????????·?????è?????????ú?¨?ú?è???????¤?è??·?·¨??????
????×????????????¤????????????±???·??????ù?ù??·?????????????×??ó?ê???????????????ü?????è±??±???????????????¤????????·?·¨?????§?°????°????è????????????????°??ú?????????ú?¨?ú?????????????à???????í?????????÷?ì????×?????????????????????·?±????????????????ü?????ò????
??????×????·?¨???????·°??ù?è??????????°????í???????÷?????÷???????????·?¨?????????ó?????????÷?????????ü?????í?????????·°????÷??????????????°???·?????????
?????¨?±?????????·???????í?????????·?????????????????????????????°×ê?±???°???±????°ì·¨????????????????????±?????×è???????????????????????????°×ê?±???????ò???????????????????????????°???±?????????????é???????????·???????????ò???è???????í???????????????????????·??????
?????¨??????×è????????????×??????÷?????????°?????±???°?????±????°?×°·????????????????????????±?????·°?°?×°???????????????????????????????????????????????????ù?????·°?°?×°????????????????????°?×°???ú????????????????????????°?×°?????????????·°??????????×?à???????ù????
?????¨?????????????·?????????????????ü??????±??????·?????????¨????????????????????????????±???±????§?????ù????·???????????????????????????·??ò?ò?????????????????????¤?á??????????×??¤?????????ù?°????????·¨?±?????·???¤×÷?????¨?????××??¤??
?????¨????×?????±???????°?????????????????????????°????????????????ò???????ò??????????±?·????????????????????????????????¤????????×??????????¨????±???±????·?????ú?·???÷???·????????°??????ó?ü???????????????±???á?ú?ú×??¤??????·¨?¤×÷???÷???·?????????·???????ó????°ü?§??????????±??¤??????????±??§????
?????¨?????????÷?????¨????????????·??????????????????????í????????????????×è?°???????????????????ú???????ú?ú??×??¤??
?????¨????×è??????×???????????×è??????×??????¤???????ò??×è??????×??????×·??????ü???????????????·?????¨??????????????????·??????????ù??×?????·????????????ù????×è??×??????????ú???÷???ù??×??????????ú?????ù????????±???·??????÷×??????·?????±?????§???????????????????·?????????????????×?ú?ú????????·???????????
  
????????????°????è??????×???????????
?????±??????·??ò????????????????????????·?????????±????????í???à??????????·??ò×????????·??×???·??ò?à???????ò?ú?ú???????¨???è???????????????÷?????????ì?????????ù×?±????ú?ú?????ì?é???÷???°?ì???¨×????????ú×????·?????°???ú°?×°????°????????ó???°?á??????
?????????÷??????????·????????í???ù???????ó?????????????á?????÷???¤?????ó??
??????????×è??????????·???·?????·?????·????ú·???????
?????¨?±????·????±???·???????????à?????????·°????????ó???é????????°?????????·???????????1/4W????????×è??·??±,?????????????à????°???4/10??????1/2W????×è??·??±,???????????à??°???5/10??????????????·??±??1N400X???????÷??,??°???3/10????;1N540X???????÷??,??°???4??5/10??????
?????¨?????ú·????±???·?????????à?????????·°????????ó???é????????°????????ú·????ú·??±?????????????à??°???1??2/10??????
?????????????÷??IC×ù??·??????ò
?????¨?±???????÷?????????÷???????÷???????????????è???????÷???ú?????±???÷???±??????????????·??±???÷???÷???±???????????????????÷???÷?????÷???????÷?????÷?????????÷???ó?????è???????÷?±???ú?????±???÷???±?????÷???ó???????÷°?·????ù???±?ú?????ú?á??°?×°?°??°??????????ó???ò??????????·??ù??°???±???????×?±ú??????
?????¨????IC×ù???è??????°????±????????IC×ù?????????????¨????±?×???IC×ù???¨????·?????·?????·????·????×????÷??IC??????·????·????????1??????????IC×ù???????????ò??×ó???????????????¨?????¨??????????????
??????????????????????
?????¨?±???à???????????????????à?????ó????°???2??3/10????×ó??????????
?????¨????????????????????????1??2???à??????????????????
?????????è?????????±??×??????????????ò???????????à?????í??
?????·????±??¤???·???????ó???°?á?????è???±?????ó×??????í??????????????????°????¨???????ó×????????ó?±????±???°?×°?????????ì????
?????????è?????????±×??????????????????ó?????ò???÷????
???????????????í???????????à?????????????÷?????????à?????????????????????????à?à·???
?????±?°???è????°????¨???ò·??ò????????????????×ó?ù?????????????????ò????