Hauv kev lag luam hluav taws xob hluav taws xob hluav taws xob, txhawm rau ua kom tau raws li cov khoom xav tau, ntau thiab ntau CCLs yog dej nyab rau hauv kev ua lag luam.CCL yog dab tsi?Dab tsi yog qhov nrov tshaj plaws thiab pheej yig CCL?Tej zaum nws yuav tsis yog tsom rau ntau tus kws tshaj lij hluav taws xob me me.Ntawm no, koj yuav kawm ntau yam txog CCL thiab nws yuav pab tau rau koj qhov project electronics yav tom ntej.
1. Lub ntsiab lus ntawm Copper Clad Laminate?
Copper Clad Laminate, abbreviated rau CCL, yog ib hom khoom siv ntawm PCBs.Nrog iav fiber ntau los yog ntoo pulp ntawv ua cov khoom siv ntxiv, CCL yog ib hom khoom los ntawm lamination nrog tooj liab clad ntawm ib sab lossis ob sab ntawm cov khoom siv ntxiv tom qab tau tsau rau hauv cov resin.
2. Kev faib tawm ntawm CCLs?
Raws li cov qauv sib txawv, CCLs tuaj yeem muab faib ua ntau pawg:
• Raws li CCL mechanical rigidity, Muaj CCL nruj (FR-4, CEM-1, thiab lwm yam) thiab flex CCL.Rigid PCBs nyob ntawm nruj CCLs thaum flex PCBs nyob ntawm flex CCLs (flex-rigid PCBs yog ntawm ob qho tib si nruj CCLs thiab flex CCLs).
• Raws li cov khoom siv rwb thaiv tsev thiab cov qauv, Muaj cov organic resin CCL (FR-4, CEM-3, thiab lwm yam), hlau-puag CCL, ceramic-base CCL thiab lwm yam.
• Raws li CCL thicknes Muaj cov qauv tuab CCL thiab nyias CCL.Tus qub yuav tsum tau tsawg kawg yog 0.5 hli thickness thaum lub tom kawg yuav thinner tshaj 0.5 hli.Copper foil thickness yog cais los ntawm CCL thickness.
• Raws li cov khoom siv txhawb zog, Muaj iav fiber ntau daim ntaub puag CCL (FR-4, FR-5), ntawv hauv paus CCL (XPC), compound CCL (CEM-1, CEM-3).
• Raws li cov ntaub ntawv rwb thaiv tsev, Muaj epoxy resin CCL (FR-4, CEM-3) thiab Phenolic CCL (FR-1, XPC).
3. Dab tsi ntawm CCL dav siv?
Ntawm cov fiberglass ntaub puag CCL cov khoom, FR-4 CCL ua si ib txoj cai tseem ceeb heev.Nws tau siv dav hauv ntau hom boards
Txog rau tam sim no, cov khoom sib txawv raws li FR-4 CCL tau tsim thiab tsim los ntawm ntau qib kev ua tau zoo thiab cov pawg tau ua tiav qib zuj zus thiab kev loj hlob.Cov khoom tseem ceeb raws li FR-4 CCL tau tso tawm hauv Common FR-4, Mid-Tg FR-4, High-Tg FR-4, Lead-free soldering FR-4, Halogen-free FR-4, Mid-Tg ( Tg150 ° C) halogen-dawb FR-4, High-Tg (Tg170 ° C) halogen-dawb FR-4, FR-4 CCL nrog kev ua haujlwm siab ect.
Tsis tas li ntawd, muaj High modulus FR-4 board, FR-4 board nrog tsawg coefficient ntawm thermal expansion, FR-4 board nrog tsawg dielectric tas li, High-CTI FR-4 board, High-CAF FR-4 board, siab thermal -conductivity FR-4 board rau LED.
Tom qab kev siv zog thiab kev paub dhau los hauv PCB kev tsim khoom, PHILIFAST tau ua txoj cai tseem ceeb los pab txhawb kev ua haujlwm siab dua hauv kev tsim khoom siv hluav taws xob.
Post lub sij hawm: Jun-22-2021