重点解析PCB各层的含义

)topsolder/bottomlayer

PCB

PCB

soldermask

soldermask

!

o

pastemask

toplayer/bottomlayer

? !

PCB solder

PCB

; PCB toplayer

bottomlayer solder PCB

TOC\o"1-5"\h\z

1 !

!

pastemask !SMT toplayer

topsoldertoppastetoplayertoppaste

topsolder DIP

topsoldermultilayer( multilayer

toplayerbottomlayertopsolderbottomsolder

PCB

toplayer/bottomlayersolder

? PCB

solder

solder (solder

toplayerbottomlayer)!

solder

!solder

mechanical,keepoutlayertopoverlaybottomoverlaytoppaste,bottompastetopsolderbottomsolderdrillguide,drilldrawingmultilayer

PCB

Protel99SE16 /

.topoverlaybottomoverlayPCBtoppastebottompaste(PCB

toppaste

topsolderbottomsolder

multilayer

PCB

topsolderbottomsolder

1Signallayer()

Toplayer(

MidLayer()

2Internalplanelayer(

soldermask

!

o

Protel99SE32

)Bottomlayer()30

/ )

Mechanicallayer()

Protel99SE16

PCB

Design|MechanicalLayer

Soldermasklayer()

Protel99SETopSolder()BottomSolder()

TOC\o"1-5"\h\z

\o"CurrentDocument"

Pastemasklayer( SMD)

Protel99SETopPaste()Bottom

Paste()

PCBSMD Dip(

) Gerber SMD

\o"CurrentDocument"

PCB SMD

PasteMask,

PasteMask

Gerber

SMD

SolderMask

6Keepoutlayer(

7Silkscreenlayer()

Protel99SETopOverlay

BottomOverlay

8Multilayer()

9Drilllayer()

(

)Drill

)Protel99SEDrillgride(

drawing(

soldermask

soldermask

pastemask

toplayer/bottomlayer

?

o

PCB solder

PCB; PCB

toplayerbottomlayer solder

PCB

1

!

pastemask !SMT toplayer

topsoldertoppastetoplayertoppastetopsolder DIP

topsoldermultilayer(

multilayer

toplayerbottomlayertopsolderbottomsolder

)topsolder/bottomsolder

toplayer/bottomlayer

PCB

「皿

零叠允许不可^用

soldermask

soldermask

!o

pastemask

toplayer/bottomlayer

? !

• •

PCB solder

PCB

; PCB

toplayerbottomlayer solder

PCB 1

!2

!3pastemask

!SMT toplayertopsolder

toppastetoplayertoppaste topsolder

DIP topsoldermultilayer

( multilayer toplayer

bottomlayertopsolderbottomsolder )

topsolder/bottomlayertoplayer/bottomlayersolder

? PCB

solder

solder (solder

toplayerbottomlayer)!solder!solder

!mechanical,

keepoutlayer

topoverlay

soldermask

bottomoverlay toppaste,

bottompaste topsolder bottom

solder drillguide, drilldrawing

multilayerPCB

PCB

.topoverlaybottomoverlayPCBtoppastebottompaste(PCB

toppastetopsolderbottomsolder

multilayerPCBtopsolderbottomsolder*;

!1Signallayer(

Protel99SElayer()Bottomlayer(2Internalplanelayer(16 / .

32 Top

)30MidLayer()

/ )Protel99SE

3Mechanicallayer(

)Protel99SE

16

PCBDesign|MechanicalLayer

4Soldermasklayer()

Protel99SE

BottomSolder( )

SMD )

Paste()BottomPaste(

PCBSMD

Gerber

SMD

TopSolder()

Pastemasklayer(

Protel99SETop

)

Dip()

SMDPCB

PasteMask,

PasteMaskGerberSMD SolderMask

Keepoutlayer( )

7

Silkscreenlayer()

Protel99SE Top

OverlayBottomOverlay

Multilayer( )

Drilllayer()

( )Protel99SE

Drillgride( )Drilldrawing()

soldermask

soldermaskpaste

mask

toplayer/bottomlayer

要点：

*

;

?

o

PCB

PCB

; PCB

toplayerbottomlayerPCB

1!

o

2

3pastemasktopsoldertoppastetopsoldertopsoldermult