Hlau puag tooj liab clad phaj thiab FR-4 yog ob feem ntau siv luam tawm cov boardruit Court board (PCB) substrates hauv kev lag luam hluav taws xob. Lawv txawv hauv cov khoom muaj pes tsawg leeg, cov yam ntxwv ua tau zoo thiab daim teb daim ntawv thov. Niaj hnub no, lub caij so yuav muab koj cov kev txheeb xyuas piv ntawm ob cov ntaub ntawv los ntawm kev tshaj lij kev tshaj lij:
Hlau puag tooj liab clad phaj: nws yog cov hlau-based pcb cov ntaub ntawv, feem ntau yog siv txhuas lossis tooj liab ua lub substrate. Nws lub ntsiab tseem ceeb yog qhov zoo thermal conductivity thiab cua sov dissipation muaj peev xwm, yog li nws nrov heev hauv cov ntawv thov kev ua kom muaj teeb pom kev zoo thiab hloov fais fab. Cov hlau substrate tuaj yeem coj ua kom zoo thaum tshav kub los ntawm PCB cov kub me me, yog li txo cov cua sov thiab txhim kho cov kev ua tau zoo ntawm lub cuab yeej.
Fr-4: FR-4 yog cov lus laminate nrog cov ntaub npog iav uas yog cov khoom siv epoxy li epoxy. Nws yog tam sim no feem ntau siv pcb substrate, vim hais tias ntawm nws cov tshuab hluav taws xob zoo, hluav taws xob rwb thaiv tsev cov khoom thiab yog siv dav hauv ntau yam khoom hluav taws xob. F-4 muaj nplaim taws retardant ntsuam xyuas ntawm ul94 v-0, uas txhais tau tias nws hlawv nyob rau hauv ib tug nplaim taws rau lub sijhawm luv luv thiab haum rau siv nyob rau hauv cov khoom siv hluav taws xob nrog kev nyab xeeb txog kev nyab xeeb.
Cov Ntsiab Lus Distinter:
Cov khoom siv substrate: hlau tooj-clad panels siv hlau (xws li txhuas lossis tooj liab) raws li lub substrate, thaum Fr-4 siv fiberglass daim ntaub thiab epoxy cob.
Thermal conductivity: Lub thermal conductivity ntawm cov ntawv hlau yog ntau dua li ntawm fr-4, uas yog qhov tsim nyog rau cov ntawv thov tsis txaus ntseeg.
Qhov hnyav thiab tuab: Hlau Clig tooj liab cov nplooj ntawv feem ntau hnyav dua li fr-4 thiab tej zaum yuav nyias.
Txheej Txheem Muaj peev xwm: FR-4 yog ib qho yooj yim rau cov txheej txheem, haum rau cov ntau-txheej pcb tsim; Hlau Clig Tooj Liab phaj yog qhov nyuaj rau cov txheej txheem, tab sis haum rau ib-txheej lossis yooj yim txheej txheej txheem tsim.
Tus nqi: Tus nqi ntawm cov hlau coop ntawv daim ntawv feem ntau yog siab dua fr-4 vim hais tias ntawm tus nqi siab dua.
Daim ntaub ntawv: Cov Khoom Siv Tooj Liab yog siv rau hauv cov khoom siv hluav taws xob uas xav tau cov cua sov tsis zoo, teeb pom kev zoo. Daim FR-4 yog ntau ntau yam, haum rau feem ntau cov khoom hluav taws xob hluav taws xob thiab cov txheej txheej ntau pcb.
Feem ntau, kev xaiv ntawm cov hlau clad lossis fr-4 feem ntau yog nyob ntawm cov khoom lag luam thermal, tsim qauv, yuav tsum tau nyiaj txiag thiab kev nyab xeeb nyiaj.