Luam tawm Circuit Board (PCB) yog ib qho ntawm cov kab hluav taws xob zoo hauv cov khoom siv hluav taws xob niaj hnub no. Sampling yog ib kauj ruam tseem ceeb hauv kev tsim cov txheej txheem ntau txheej PCB, uas tuaj yeem muab cov qauv kuaj rau cov neeg tsim qauv los xyuas qhov ua tau zoo, zoo, thiab kev ntseeg tau. Nyob rau hauv cov txheej txheem ntawm ntau txheej PCB, cov txheej txheem sab hauv kev faib tawm yog ib qho tseem ceeb kom ntseeg tau tias kev ua haujlwm ruaj khov thiab txhim khu kev qha ntawm lub rooj tsav xwm Circuit Court.
Raws li ib tugmulti-layer PCB chaw tsim tshuaj paus, peb ntseeg hais tias nws yog ib qho tseem ceeb kom nkag siab thiab paub cov txheej txheem ntawm kev ua ntau txheej PCB cov qauv, nrog rau cov qauv rau kev faib cov txheej txheej sab hauv ntawm ntau txheej PCB. Kab lus no yuav tsom rau kev qhia txog ob yam no.
Ua ntej, cov qauv ntawm ntau txheej PCB yog qhov tseem ceeb rau kev txhim kho thiab txhim kho cov txheej txheem ntawm cov khoom. Los ntawm kev ua piv txwv, cov neeg tsim qauv tuaj yeem txheeb xyuas qhov kev ua tau zoo thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob, tshawb xyuas cov teeb meem muaj peev xwm, txheeb xyuas thiab daws lawv ua ntej, yog li ua kom cov khoom zoo thiab kev ntseeg siab ntawm cov khoom. Nyob rau tib lub sijhawm, ntau txheej PCB prototyping kuj tuaj yeem pab cov neeg tsim qauv ua kom zoo tshaj plaws hauv Circuit Court layout, txhim kho tag nrho cov kev ua tau zoo thiab teeb liab kev ncaj ncees.
Thib ob, txheej txheej sab hauv faib ntawm ntau txheej PCB yog qhov tseem ceeb hauv kev ua kom lub zog ua haujlwm thiab kev ntseeg tau. Kev faib cov txheej sab hauv yog hais txog kev faib qhov chaw sab hauv ntawm lub rooj tsav xwm hauv Circuit Court rau ntau theem, thiab teeb tsa cov txheej tooj liab thiab cov txheej txheem rwb thaiv tsev ntawm txhua qib. Tsim nyog sab hauv txheej faib tuaj yeem muab kev sib cais electromagnetic zoo thiab muaj peev xwm tiv thaiv kev cuam tshuam, txo qhov muaj peev xwm ntawm teeb liab crosstalk. Cov qauv zoo sib xws rau kev faib cov txheej txheej sab hauv ntawm ntau txheej PCB suav nrog kev sib faib sib luag, sib npaug sib faib, thiab kev faib tsis tu ncua. Ntawm lawv, symmetrical partitioning yog hais txog kev faib cov txheej sab hauv hauv ib qho kev sib luag, uas tuaj yeem txhim kho kev ruaj ntseg ntawm lub rooj tsav xwm Circuit Court; Kev sib faib sib npaug yog hais txog kev faib cov teeb liab siab ceev thiab qis qis ntawm qib sib txawv kom txo qis kev cuam tshuam; Txoj cai faib yog hais txog kev faib cov thickness ntawm txhua txheej ntawm lub rooj tsavxwm nyob rau hauv ib qho kev faib ua feem thiab txiav txim kom ua tau zoo interlayer hluav taws xob kev ua tau zoo.
Ntxiv rau cov txheej txheem kev faib cov txheej txheem sab hauv, muaj lwm yam tseem ceeb uas yuav tsum tau xav txog thaum ua ntau txheej PCBs. Piv txwv li, xaiv qhov tsim nyog lub rooj tsavxwm thiab thickness kom tau raws li qhov yuav tsum tau ntawm Circuit Court tsim; Kev siv cov txheej txheem kev sib txuas sib txuas tsim nyog, xws li qhov muag tsis pom, qhov faus, thiab cov txheej txheem sib txuas, txhawm rau txhim kho kev sib koom ua ke thiab kev ua haujlwm ntawm lub rooj tsav xwm hauv Circuit Court; Tsim nyog xav txog kev faib cov teeb liab thiab lub zog thaum lub sij hawm xaim txheej txheem kom txo tau lub suab nrov thiab cuam tshuam ntawm lub rooj tsav xwm hauv Circuit Court.
Hauv luv luv, piv txwv ntawm ntau txheej PCB yog ib kauj ruam tseem ceeb hauv kev ua kom cov khoom zoo thiab kev ntseeg siab, thiab cov txheej txheem sab hauv ntawm cov txheej txheem ntau txheej PCB yog qhov tseem ceeb hauv kev ua kom muaj kev ua tau zoo thiab kev ntseeg siab.