????PCB????

1
????PCB????

• ??????PCB??????
• ??????????
• PCB??
• PCB EDA ????
• PCB????

????(?????) 800 11001400 1700
2
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• ?????????
• ????????
• ?????????????
• ?????

3
????????
?? vs. ??? ????????Fclock vs. ???????Fknee
Tr???????
????????????????,??????????4????????,??????
??????????????????????????????????????????????????

4
?????
???????????,??????????????????????????
???????????????30?????,?31010
cm/s(?????),???11800 mil/ns.
??????,?????????Er,??????? 11800Er0.5 mil/ns
??PCB?FR4????????4??,??,??????????????11800/
(40.5) 5900 mil/ns
5
????????
???????????????1.0ns(????0.5GHz),??FR-4???????????
????5.6in.?,?????????
?? ??
????
??? ??
?Td180ps/inch ?L 5.6 inch
6
???????
????
PCB?????
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7
PCB????????
8
??????
?????PCB???FR4???,??????????4.2-4.7????????
???????,?0-70???????,???????????20???????????????
10???,????,??????????????????,???????????100M????
?4.5??????????
???FR4???PCB????????????180ps/inch
???????????,????140?170?? ?
9
??? Microstrip
1 foot 12 inch 1 inch 2.54 cm 1 inch 1000
mils 1?? 1000?? 1oz 1.44 mils 1??1.44?? ? 1
oz 31.1g ? ?PCB??,????????,???1.44mils?,???1oz?
10
??? Microstrip
11
??? Microstrip
12
??? Stripline
1 foot 12 inch 1 inch 2.54 cm 1 inch 1000
mils 1?? 1000?? 1oz 1.44 mils 1??1.44??
13
??? Stripline
14
??? Stripline
15
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1.??????
2.??????
3.??
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20
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??????,????????????????????????????????,?R1?R2????
????????,???????????
??,???????????????,???????
??,???VBIAS???????????????????,?????
21
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22
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• ??
• ????
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23
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24
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• ?????????????,???????????????6-10??????PCB????,??1
  0/20Mil(??/??)?????,??????????????,???????8/18Mil?
  ??????????,??????????????????????????????????,????
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• ?????????????,?????PCB????????????????
• PCB????????????,?????????????????
• ?????????????,??????????????,?????????????????????
  ??????,??????
• ???????????????????,??????????????????PCB?????????
  ???????

25
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26
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27
PCB??

• PCB???
• PCB???
• PCB?????

28
PCB???
PCB(Printed Circuit Board)????? ??PWB(Printed
Wiring Board)?????,?????

• ????????????????
• ?????????????
• ????????????,??????????????????

29
PCB??
PCB?????????(constructor)???????(hardness)????????
???????????????

• ?????(Constructor)?
• ?????(Hardness)???
• ????????
• ????
• ??????
• ????

30
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32
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???????????(??????(???)??????)
??? ??????????????????,????,????????4?6?8?,????(?
???)?????????????????????,??????????????????????
33
?????(Hardness)???
??(Rigid PCB????)???(Flexible PCB??????)????(Rigid
-Flex PCB???????) ?????PCB?????????,??????????????
??,????????????????????????????PCB? ?????PCB??????
???????????????????????????????,????????????????
34
????????
16
6
L1 L2
3
L3 L4
L5 L6
??
L7 L8 L9
L10 L11
6
L12
8
??
??
35
????
a. ???? ??????????/?????Polyimide?BT/Epoxy?? b.
???? ???Copper-invar-copper (CIC)?ceramic?
???PCB
36
??????(solderSurface) Hot Air Level Soldering
??(HASL) Entek/OSP(???)? Carbon Oil ??? Peelable
Mask ??? Gold Finger ???? Immersion Gold ??? Gold
Plating ?? Immersion Tin ??? Immersion Silver
???(D2?)
???? ??/?????/??/???/???/???,BGA?
37
PCB???????

1. ???????(HDI,High Density Inverter )
2. ????
3. ????
4. ??PCB
5. ?????????

38
???????(HDI,High Density Inverter )
???HDI?????HDI??????????????,????????????????????
? uBGAs??????????? ,????????????????6???8???
???????IC????????HDI??????4??6??,?????????,??????
?????????????????I/O?????? ??????????????????
?????????????HDI?????1???2???1???3???????????????
???????I/O???????????HDI?
39
????
?PCB??????????(?????)?????(?????)????? ?
40
????
?????PCB????PCB??,???????????,??????????????,?????
Tg?????????????,???????????????
41
??PCB
42
??PCB
43
PCB?????
44
PCB EDA ????

• Cadence Allegro
• Altium Designer
• PADS(PowerPCB)?Mentor WG
• Cadence Allegro????

45
Cadence Allegro SPB (Silicon Package Board )
Front-end PCB design(PCB????) Front-end PCB
design requires functional conflict resolution
and the unambiguous capture of goals and
constraints. Cadence technology supports
multiple design approaches for accurate
simulations and tradeoffs. PCB????(?????)????????
??????????????? Cadence?????????????
FPGA-PCB co-design(FPGA-PCB????) Integrating
large-pin-count FPGAs with many different types
of user-configurable pins and assignment rules
extends the time to do pin assignment. Manual pin
assignment approaches can extend design cycles
and increase the risk of unnecessary PCB
re-spins. Cadence replaces manual and error-prone
processes with two placement-aware technologies
that automate pin assignment.FPGA????????????,???
???,??????????????,?PCB????????Cadence????????????
???,???????
46
Cadence Allegro SPB (Silicon Package Board )
AMS simulation(AMS??) Finding problems early with
accurate simulations before fabrication saves
time and budget. Cadence analog/mixed-signal
(AMS) simulators enable accurate modeling,
verification, and optimization of designs to
reduce risk. ?PCB???,?????????????? Cadence
???????????????????????????????
Layout and routing(?????) Shrinking design cycles
and a growing number of nets with constraints
require customers to adopt PCB design
methodologies that increase predictability and
accelerate design turnaround. Cadence layout and
routing technology offers a scalable,
easy-to-use, constraint-driven PCB design
solution for simple to complex PCBs, including
those with RF etch components.??????????????????,
???????PCB??????????????????? Cadence
??????????????????????????????????????????????????
47
Cadence Allegro SPB (Silicon Package Board )
Signal and power integrity(????????) Stresses on
signal and power integrity grow with every
increase in speed, complexity, and
miniaturization. Cadence technology helps you
address everything from simple electrical
analysis to multi-board signal simulations in the
multi-gigabit range. ??????????????????,?????????
?????? Cadence?????????????????????,????GHz??????
Library and design data management(????) Desktop
access to current component information and
design data is vital to cost-effective, on-time
project delivery. The Cadence library and design
data management environment provides advanced
features for intra-company and design chain
collaboration and control. ?????????,?????????????
???Cadence ?????????????????????????
48
PCB??Altium Designer
???Protel99?Protel DXP2004?????Altium????,?
???,??????, ???,??,??gerber?????,????????????Prote
l 99?DXP ???????,???????????????,?????(????????)??
???
49
PADS(PowerPCB)
?PowerPCB,?????????,??,????????,??????(????????)??

Mentor WG ? Mentor Expedition,?Mentor
Graphics????Windows???PCB ?????Mentor
WG?????????????Design Capture,??? Mentor ??????
Mentor DxDesigner Mentor WG ???? Mentor??????,???
???Cadence?
50
???????EDA??
Intel ConceptAllegro SpecctraQuest Dell DXD
Allegro SQ????????? Capture Huaweiviewdraw
Allegro SpecctraQuestExpEDAtion ZTE ConceptAl
legro SpecctraQuestExpEDAtion UT ConceptAllegr
o?PowerPCB SpecctraQuest CsicoConceptAllegro
SpecctraQuest Hp ConceptAllegro SpecctraQuest
? Boardstation?? Alllegro ?? Moto ConceptAllegro
SpecctraQuest ? Boardstation?? Alllegro
?? Nokia Mentor BA ZUKEN BD CHIPCON(TI)CADSTAR
51
Cadence Allegro 16.3??
Cadence Help ???? Design entry
CIS?????(??????????Mentor?PADS) Design entry
HDL?????(???,??????????????) Design entry rules
checker(HDL???????) FPGA System Planner OrCAD
???OrCAD??????????Cadence Package
designerIC??????? PCB editor???PCB???? PCB
routerCCT??? PCB SI????PCB??????????????????????
? Physical viewer Project ManagerDesign Entry
HDL ?????? PSpice AD?OrCAD??????? PSpice
AA?OrCAD??????? SigXplorer?????????? SiP SiP
Digital Architect System Architect AMS
Simulator???????? PCB Editor Utilities??PAD
Design?DB Doctor?Batch DRC? PSpice
Accessories??????
52
PCB????
????????? ???????.obj,.DSN ??????????? ?????????
?????parts ???????? ????netlist(????) ????(??????
??????,??????,??????) PCB Layout???? ?????.brd ?
??????(???????) ?????????????(Footprint)??? ???? ?
???(??????????) ???????? ?????(?????)