Printed Circuit Board (PCB), tseem hu ua Circuit Board, yog ib qho tseem ceeb hauv hluav taws xob, hu ua "niam ntawm cov khoom siv hluav taws xob"
1. Kev txhais ntawm PCB board
Cov khoom siv hluav taws xob niaj hnub yog tsim los ntawm cov duab kos duab thiab kos duab los ntawm kev luam ntawv corrosion resistant, yog li lawv raug hu ua cov ntawv luam tawm Circuit Board thiab cov ntawv luam tawm. Tam sim no, feem ntau lub rooj tsav xwm hluav taws xob tau txuas rau cov khoom siv los tiv thaiv corrosion (lamination lossis txheej), tom qab kev txhim kho raug, lub rooj tsavxwm tuaj yeem etched.
2, PCB pawg thawj coj ua haujlwm
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub rooj tsavxwm luam tawm yog: lub rooj tsavxwm raws li cov khoom siv rwb thaiv tsev yog sib cais los ntawm cov ntaub ntawv tooj liab conductive txheej ntawm qhov chaw, kom cov tam sim no ntws raws txoj kev tsim ua ntej hauv ntau yam khoom kom ua tiav cov haujlwm xws li kev ua haujlwm, kev nthuav dav, attenuation, modulation, demodulation, coding thiab lwm yam.
3, PCB pawg thawj coj saib
Lub rooj tsav xwm Circuit Court tau muab faib ua ib lub vaj huam sib luag, ob chav vaj huam sib luag thiab ntau txheej txheej. Nyob rau hauv feem ntau yooj yim PCB, cov khoom yog concentrated nyob rau hauv ib sab, cov hlau yog concentrated nyob rau hauv lub sab, lub PCB no yog hu ua ib tug vaj huam sib luag. Ob chav vaj huam sib luag yog them nrog tooj liab ntawm ob sab, thiab txoj kab nruab nrab ntawm ob txheej txheej tuaj yeem raug xa mus los ntawm lub qhov los tsim cov kev sib txuas uas yuav tsum tau ua. Multilayer board hais txog cov ntawv luam tawm nrog ntau tshaj peb txheej ntawm cov duab hluav taws xob thiab cov khoom siv insulating ntawm lawv tau sib cais los ntawm cov txheej txheem, thiab cov duab hluav taws xob ntawm lawv yog sib cuam tshuam raws li qhov xav tau.
4, PCB pawg thawj coj saib ua haujlwm
Lub rooj tsav xwm Circuit Court feem ntau yog tsim los ntawm cov ntaub qhwv ntsej muag, los ntawm lub qhov, mounting qhov, hlau, tivthaiv, txuas, muab tub lim, hluav taws xob ciam teb thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm txhua yam yog raws li hauv qab no:
Pad:
Hlau qhov rau vuam Cheebtsam.
Los ntawm qhov:
Xws li cov hlau los ntawm lub qhov thiab cov hlau tsis yog hlau los ntawm lub qhov, nyob rau hauv ib lub hlau los ntawm lub qhov yog siv los txuas pins ntawm cov khaubncaws sab nraud povtseg ntawm cov khoom.
Mounting qhov:
Siv los kho cov kab hluav taws xob.
Tus neeg xyuas pib:
Copper zaj duab xis network rau kev sib txuas cov pins.
Connector:
Nws yog siv los txuas cov khoom sib txuas ntawm cov boards.
Fillings:
Impedance tuaj yeem txo tau zoo los ntawm kev siv tooj liab rau hauv av network.
Hluav taws xob ciam teb:
Siv los txiav txim qhov loj ntawm lub rooj tsav xwm Circuit Court.