FR4yog ib lub iav fiber reinforced epoxy resin board dav siv nyob rau hauv hluav taws xob tsim vim nws lub zog siab, siab tawv, thiab zoo nplaim retardant zog. FR4 board yog ib qho tseem ceeb ntawm cov txheej txheem tsim khoom PCB.
FR4 board muaj ntau yam kev siv, los ntawm cov xov tooj ntawm tes, TV, computers, mus rau high-end teb xws li aerospace thiab tub rog. Hauv qee lub sijhawm tshwj xeeb, tib neeg kuj hloov aluminium substrates nrog FR4 boards kom ua tiav cov txiaj ntsig zoo dua.
FR4 board muaj cov khoom siv zoo heev, kev ua haujlwm zoo, kev ua haujlwm yooj yim, thiab tuaj yeem ua tiav ntau txoj hauv kev xws li drilling thiab txiav. Nws yog tsim rau kev tsim PCB boards ntawm ntau qhov sib txawv thiab cov duab.
Tsis tas li ntawd, FR4 pawg thawj coj kuj tseem muaj cov cua kub zoo heev thiab nplaim hluav taws kub. Hauv ib puag ncig uas cov khoom siv hluav taws xob ua haujlwm, tsis muaj leej twg xav kom lub vijtsam lossis motherboard hlawv tawm. Txawm li cas los xij, qhov xwm txheej no feem ntau tshwm sim thaum FR4 boards tsis siv. Ntxiv mus, FR4 board kuj muaj cov tshuaj tiv thaiv siab, uas yuav tsis ua rau muaj kev puas tsuaj rau sab hauv ntawm lub rooj tsavxwm vim muaj tshuaj lom neeg, yog li cuam tshuam rau kev ua haujlwm ntawm lub voj voog.
Thaum xaivFR4 pawg, peb tuaj yeem xaiv PCB boards nrog cov kev daws teeb meem sib txawv thiab qhov ntau thiab tsawg los ua haujlwm rau peb cov kev thov tshwj xeeb thiab cov kev xav tau. Yog tias muaj cov kev xav tau sib txawv, peb kuj tuaj yeem kho qhov kev ua tau zoo ntawm lub rooj tsavxwm raws li nws cov thickness kom tau raws li peb cov kev xav tau sib txawv.
