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标题: PowerPCB?è????·??¨ZT?? [打印本页]

作者: silverstar 时间: 2004-3-30 16:14 标题: PowerPCB?è????·??¨ZT??

??. ????

±??????????????????÷????PADS??????°??è???í??PowerPCB????????°??è?????÷????????×????????????????¤×÷×é???è?????±?á???è????·???·?±??è?????±???????????÷???à???ì?é??

?????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 ???¤????
a. ?¤??????°????á??????????°?±??¨Board Outline????

b. ?????÷??·????¨Disperse Components???????÷???á??????°?±??????§??

c. °????÷????????????????????×???·???°?±???????°??????¨?????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 ???¤????
a. ×????????°?????????¤??????????????????±????????±?????÷?????????????????ù?ù??×????à???????í???????à????±??????????????ó???í??????????·?×°????BGA??
×????????????????????ò???????????¤??????

b. ×??????????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??Vias

c. ???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

作者: jedhe 时间: 2005-3-22 21:00

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作者: zing 时间: 2005-3-23 00:41

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作者: gzwang2003 时间: 2005-4-29 15:40

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