Nyob rau hauv lub ntiaj teb dav ntawm cov khoom siv hluav taws xob, cov ntawv luv luv PCB feem ntau siv los xa mus rau lub rooj tsav xwm luam tawm.Txawm li cas los xij, rau cov neeg tsis paub txog qhov tsis sib xws ntawm cov thev naus laus zis tseem ceeb no, cov ntsiab lus tuaj yeem ua rau tsis meej pem thiab feem ntau nug cov lus nug xws li "PCB txhais li cas?"Yog tias koj pom koj tus kheej xav paub txog PCBs thiab xav kom nkag siab meej txog lawv cov ntsiab lus, koj nyob hauv qhov chaw zoo.Qhov blog no yog lub hom phiaj los muab cov lus qhia yooj yim rau koj nkag siab txog PCBs, lawv qhov tseem ceeb thiab lawv daim ntawv thov hauv ntiaj teb kev siv tshuab niaj hnub no.
Txhais PCB
Printed Circuit Boards (PCBs) yog cov khoom tseem ceeb hauv cov khoom siv hluav taws xob niaj hnub no.Lawv muaj cov nplooj ntawv tiaj tus ntawm cov khoom siv tsis zoo xws li fiberglass uas ua lub hauv paus rau kev txuas ntau yam khoom siv hluav taws xob.Cov khoom no yog sib cuam tshuam los ntawm ib lub network ntawm tooj liab lem, hu ua kab, etched rau saum npoo ntawm lub rooj tsavxwm.
1. Cov qauv thiab kev ua haujlwm
Lub hom phiaj tseem ceeb ntawm PCB yog muab kev txhawb nqa tshuab thiab kev sib txuas hluav taws xob ntawm cov khoom siv hluav taws xob.Nws yog lub luag haujlwm los xyuas kom meej cov kev sib txuas thiab kev sib txuas lus ntawm ntau yam khoom, nrog rau kev sib xyaw ua ke (ICs), resistors, transistors, capacitors, thiab lwm yam.Cov qauv kab hluav taws xob ntawm cov kab hluav taws xob hauv Circuit Court pab kom yooj yim rau kev khiav ntawm hluav taws xob kom cov khoom siv hluav taws xob tuaj yeem ua haujlwm zoo.
2. Qhov zoo ntawm PCB
Kev sib xyaw PCBs rau hauv cov khoom siv hluav taws xob muaj ntau qhov zoo.Ua ntej, lawv cov qauv tsim ua kom muaj qhov me me, ua kom qhov chaw zoo nyob hauv cov khoom siv hluav taws xob.Tsis tas li ntawd, kev siv PCB kuj tseem txo qis txoj hauv kev ua yuam kev thaum lub sijhawm sib dhos, vim tias cov khoom siv tau muab tso rau hauv lub rooj tsavxwm, uas ua rau cov txheej txheem tsim khoom yooj yim.PCBs kuj muaj ntau dua durability piv rau lwm txoj kev xaim.Soldered Cheebtsam kom muaj kev ruaj ntseg kev twb kev txuas thiab txo txoj kev pheej hmoo ntawm xoob xov hlau los yog kev sib txuas tsis raug.
3. Hom PCBs
PCBs yuav txawv ntawm qhov nyuaj, tsim, thiab cov txheej txheem kom tau raws li cov kev xav tau ntawm cov ntawv thov tshwj xeeb.Qee hom PCBs muaj xws li ib txheej, ob txheej txheej, thiab ntau txheej PCBs.Ib txheej txheej PCB muaj ib txheej tooj liab ntawm ib sab, thaum ob txheej PCB muaj cov kab tooj liab ntawm ob sab.Multilayer PCBs muaj ntau txheej txheej uas tau muab sib dhos thiab sib cuam tshuam los ntawm qhov drilled qhov hu ua vias, tso cai rau ntau cov khoom sib xyaw ua ke thiab txhim kho kev ua haujlwm.
4. PCB raug txheej txheem
Kev tsim cov txheej txheem ntawm PCB suav nrog ob peb kauj ruam.Thaum pib, qhov ntev ntawm lub rooj tsavxwm thiab kev teeb tsa ntawm cov khoom siv yog tsim los siv computer-aided design (CAD) software.Thaum tsim tiav, nws raug xa mus rau lub rooj tsav xwm hauv Circuit Court los ntawm cov yeeb yaj kiab photosensitive lossis daim npog tiv thaiv.Cov chaw tooj liab raug tshem tawm tom qab ntawd etched tam sim ntawd siv cov tshuaj tov, tawm hauv cov kab uas xav tau.Thaum kawg, cov khoom yog mounted rau ntawm lub rooj tsavxwm thiab soldered, ua kom tiav cov txheej txheem sib dhos.
nyob rau hauv xaus
Hauv cov ntsiab lus, cov ntawv luam tawm Circuit Boards (PCBs) ua lub luag haujlwm tseem ceeb hauv cov khoom siv hluav taws xob, muab cov khoom siv hluav taws xob tsim nyog thiab kev txhawb nqa tshuab rau suav tsis txheeb.Kev nkag siab txog cov hauv paus ntawm PCBs, suav nrog lawv cov qauv, kev ua haujlwm, cov txiaj ntsig, thiab cov txheej txheem tsim khoom, yog qhov tseem ceeb rau kev nkag siab txog cov khoom siv hluav taws xob nyuaj uas peb ntsib txhua hnub.Raws li kev siv thev naus laus zis txuas ntxiv mus, PCBs yuav yog qhov tseem ceeb ntawm kev tsim kho tshiab, hloov kho kom tau raws li cov kev cov nyom tshiab thiab cov kev xav tau.
Post lub sij hawm: Jun-26-2023