Cov Khoom Siv Thiab Hom Copper Clad Laminate (CCL) Rau Cov Ntawv Luam Tawm Circuit Boards (PCBs)

Cov ntaub ntawv thiab hom Copper Clad Laminate (CCL) rau Printed Circuit Boards (PCBs)

Taw qhia:
Cov khoom siv hauv kev tsim cov ntawv luam tawm Circuit Board (PCBs) plays lub luag haujlwm tseem ceeb hauv lawv txoj haujlwm thiab kev ua haujlwm. PCBs feem ntau yog tsim los ntawm cov khoom siv hu ua Copper Clad Laminate (CCL). CCL yog tsim los ntawm substrate, tooj liab ntawv ci, thiab nplaum. Kab lus no tshawb txog cov ntaub ntawv siv hauv PCBs thiab ntau hom CCL muaj.

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1. Cov khoom siv hauv PCBs

Printed Circuit Boards feem ntau yog tsim los ntawm Copper Clad Laminate (CCL), uas muaj cov khoom hauv qab no:

Substrate: Lub substrate yog ib txheej insulating ua los ntawm high-polymer hluavtaws cob thiab cov ntaub ntawv txhawb zog. Nws muab hluav taws xob rwb thaiv tsev ntawm cov txheej tooj liab.
Copper Foil: Ib txheej ntawm high-conductivity, weldable tooj liab ntawv ci yog txuas rau ib los yog ob sab ntawm substrate. Qhov tuab ntawm cov ntawv ci tooj liab feem ntau yog li ntawm 35 txog 50 micrometers.
Adhesive: Cov nplaum yog lub luag haujlwm rau kev ruaj ntseg ntawm cov ntawv ci tooj liab rau hauv substrate.

2. Hom Copper Clad Laminate (CCL)

Copper Clad Laminate los ntawm ntau hom, txhua tus tsim kom haum rau cov kev siv tshwj xeeb thiab cov kev xav tau. Cov hauv qab no yog qee hom CCL:

a. Rigid Copper Clad Laminate (RCCL) thiab Flexible Copper Clad Laminate (FCCL):

RCCL muaj cov neeg kho tshuab rigidity thiab feem ntau siv hauv cov qauv PCBs.FCCL yog tsim los hloov tau thiab siv rau hauv cov ntawv thov uas PCB yuav tsum khoov lossis ua raws li cov duab sib txawv.

b. Organic Resin-Based CCL:

Cov CCLs no yog tsim los ntawm cov ntaub ntawv organic resin, thiab lawv tau siv dav rau cov qauv PCBs.
c. Hlau-raws li CCL:

Hlau-raws li CCLs muaj cov tub ntxhais hlau, feem ntau yog ua los ntawm txhuas. Lawv muab kev ua haujlwm thermal zoo heev thiab siv rau hauv cov ntawv siv hluav taws xob uas muaj cua sov yog qhov tseem ceeb.
d. Ceramic-raws li CCL:

Ceramic-raws li CCLs yog tsim los rau cov ntawv thov uas yuav tsum tau muaj cov teeb liab kis tau zoo. Lawv muab cov khoom hluav taws xob zoo heev thiab qhov kub thiab txias.
e. Thick thiab nyias CCLs:

CCLs yog categorized li tuab los yog nyias raws li lawv thickness. Thick CCLs feem ntau yog los ntawm {{0}}.8 mus rau 3.2 millimeters, thaum nyias CCLs nyias nyias dua 0.78 millimeters.
f. Cov khoom siv txhawb zog:

CCLs tuaj yeem raug cais ntxiv raws li hom khoom siv txhawb zog siv. Cov hom muaj xws li iav ntaub-raws li CCLs, ntawv-raws li CCLs, thiab composite-based CCLs (piv txwv li, CME-1, CME-2).
g. Nplaim Resistance:

PCBs feem ntau muab faib ua nplaim hluav taws (FR) lossis tsis muaj nplaim taws. Flame-resistant PCBs ua tau raws li cov qauv kev nyab xeeb ntawm hluav taws, ua rau lawv haum rau ntau yam kev siv.
h. Kev ntsuas UL:

Underwriters Laboratories (UL) cov qauv qhia nruj CCLs rau hauv cov nplaim taws sib txawv, xws li UL{{0}}V0, UL-94V1, UL-94V2, thiab UL{{6 }}HB.

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Xaus:
Kev xaiv ntawm Copper Clad Laminate (CCL) yog qhov tseem ceeb hauv kev txiav txim siab qhov ua tau zoo thiab tsim nyog ntawm lub rooj tsav xwm luam tawm rau ib daim ntawv thov tshwj xeeb. Ntau hom CCLs muaj ntau yam khoom thiab cov yam ntxwv, ua rau lawv haum rau ntau yam kev siv hluav taws xob thiab hluav taws xob. Kev nkag siab txog cov ntaub ntawv thiab hom CCL yog qhov tseem ceeb rau PCB tus tsim thiab cov chaw tsim khoom kom ua tau raws li cov kev xav tau tshwj xeeb thiab kev cia siab ua haujlwm.