Tooj liab ntawv nyiajMuaj tsawg tus nqi ntawm cov pa oxygen thiab tuaj yeem txuas nrog ntau yam sib txawv substrates, xws li cov hlau, insulating cov ntaub ntawv. Thiab tooj liab ntawv ci yog tsuas yog thov hauv electromagneting thiab cov tshuaj tua kab mob. Txhawm rau muab cov ntawv luam tawm tooj liab ntawm cov npoo av thiab sib txuas nrog cov hlau substrate, nws yuav qhia tau txuas ntxiv thiab hluav taws xob tiv thaiv. Nws tuaj yeem muab faib ua: tus kheej adhesive tooj liab ntawv ci, ib sab tooj liab ntawv ci, ob sab tooj liab ntawv ntawv thiab zoo li.

Nyob rau hauv nqe lus no, yog tias koj tab tom kawm paub ntau ntxiv txog tooj liab, thov kos thiab nyeem cov ntsiab lus hauv qab no rau cov lus qhia ntxiv.

Dab tsi yog cov yam ntxwv ntawm tooj liab ntawv ci hauv PCB tsim?

Pcb Tooj Liab NyiajPuas yog thawj lub tooj liab tuab thov siv rau sab nraud thiab sab hauv ib pawg ntawm multilayer pcb board. Tooj liab ceeb thawj txhais tau hais tias yog qhov hnyav (hauv ooj) tooj liab nyob hauv ib qho xwm txheej ntawm thaj chaw. Qhov ntsuas no qhia tau tag nrho cov tuab ntawm tooj liab ntawm txheej. MadpCB siv cov khoom siv tooj hauv qab no rau lub ntsej muag pcb (npaj ua ntej). Tes taw hnyav li ntsuas hauv OZ / FT2. Qhov hnyav tooj liab uas tsim nyog tuaj yeem raug xaiv kom haum rau tsim qauv yuav tsum tau ua.

· Ntawm PCB tsim, cov ntawv xov tooj liab nyob hauv yob, uas yog siv hluav taws xob nrog kev huv ntawm 9 / 3oz / ft2 (12oz / ft2 (70μm lossis 2.8mil).

· Tooj ntawv ntawv ci muaj qis dua ntawm cov pa oxygen thiab tuaj yeem txuas nrog ntawm Laminate cov khoom siv rau cov hlau, Frfe thiab Ceramic, kom ua rau cov txiv neej tooj liab.

Nws nws tuaj yeem qhia hauv pawg neeg ntau yam li tooj liab ntawv ci nws tus kheej ua ntej nias.

· Nyob rau hauv cov pcb tsim tawm, tus tooj liab kawg ntawm cov txheej txheem sab hauv seem ntawm thawj thawj ntawv xov tooj liab; On oter txheej uas peb phaj ntxiv 18-30μm tooj liab ntawm cov ciav hlau thaum lub vaj huam sib luag plating txheej txheem.

· Lub tooj liab rau cov khaubncaws sab nraud povtseg ntawm cov khaubncaws sab nraud povtseg ntawm cov khw muag khoom siv ntau thiab nias ua ke nrog cov expregs lossis cores. Rau kev siv nrog Microvias hauv HDI PCB, lub tooj liab ntawv ci yog ncaj qha ntawm RCC (resin coated tooj liab).

Vim li cas tooj liab ntawv ci yog xav tau hauv PCB tsim?

Kev Siv Hluav Taws Xob Hauv Hluav Taws Xob Cov Khoom Siv Hluav Taws Xob, Kev Siv Cov Khoom Siv Hluav Taws Xob, Cov Khoom Siv Hluav Taws Xob, Xov Tooj Cua, Xov Tooj, Cov Khoom Siv Cua Txias, automotive electronics, kev ua si consoles.

Muaj Tooj Tooj Ntawv Nyiaj Toojtuaj yeem muab faib ua ob pawg: dov tooj liab ntawv ci (ra tooj liab Raws li tus dov tooj liab ntawv yog qhov tseem ceeb raw cov ntaub ntawv ntawm tus mos board, yog li cov yam ntxwv ntawm daim ntawv qhia tooj liab thiab tus nqi hloov ntawm cov khau ntaub mos lag luam muaj qee yam cuam tshuam.

Dab tsi yog cov cai tsim qauv ntawm tooj liab ntawv ci hauv PCB?

Koj puas paub tias cov ntawv luam tawm hluav taws xob muaj ntau yam hauv pawg ntawm cov khoom hluav taws xob? Kuv zoo nkauj heev ib qho yog tam sim no nyob rau hauv cov khoom siv hluav taws xob uas koj siv tam sim no. Txawm li cas los xij, siv cov khoom hluav taws xob no yam tsis nkag siab txog lawv cov thev naus laus zis thiab txoj kev tsim qauv yog ib qho kev coj ua. Cov neeg siv cov khoom siv hluav taws xob txhua lub sijhawm tab sis lawv tsis paub lawv ua haujlwm li cas. Yog li ntawm no yog qee qhov chaw tseem ceeb ntawm PCB uas tau hais kom muaj kev nkag siab sai ntawm cov ntawv luam tawm hluav taws xob ua haujlwm.

· Cov BoardCuit Courruit Board yog yooj yim yas yas nrog ntxiv ntawm iav. Tus tooj liab ntawv ci yog siv rau tracing txoj hauv kev thiab nws tso cai rau kev ntws ntawm cov nqi thiab cov cim tsis pub dhau lub cuab yeej. Cov kab mob tooj liab yog txoj kev los muab hwj chim rau cov khoom sib txawv ntawm cov khoom siv hluav taws xob. Hloov chaw ntawm cov xov hlau, tooj khij cov kab ntawv qhia kev ntws ntawm cov nqi ntawm PCBs.

· Pcbs tuaj yeem yog ib txheej thiab ob txheej ntxiv. Ib daim pcb yog cov yooj yim. Lawv muaj tooj liab ntawv ci ntawm ib sab thiab sab tod yog chav rau lwm cov khoom. Thaum nyob rau ntawm ob-formed pcb, ob sab yog tshwj tseg rau tooj liab ntawv ci. Ob chav floed yog lub complex pcbs muaj cov kab sib tw nyuaj rau kev ntws ntawm cov nqi. Tsis muaj cov ntawv xov tooj liab tuaj yeem hla txhua tus. Cov PCBs no yuav tsum muaj rau cov khoom siv hluav taws xob hnyav.

Kuj tseem muaj ob txheej ntawm cov tub rog thiab cov neeg muag khoom ntawm tooj liab pcb. Ib daim npog qhov ncauj nrog siv kom paub qhov txawv ntawm PCB. Muaj ntau cov xim ntawm pcbs muaj xws li ntsuab, liab, ci ntsa iab los qhia tus tooj liab los ntawm lwm cov hlau kom nkag siab txog kev sib txuas ua ke. Thaum silkscreen yog cov ntawv sau ntawm PCB, cov ntawv sau sib txawv thiab cov lej sau rau ntawm cov neeg siv thiab tus kws ua choj.

Yuav ua li cas xaiv cov khoom kom tsim nyog rau tooj liab ntawv ci hauv PCB?

Raws li tau hais ua ntej, koj yuav tsum pom cov kauj ruam kauj ruam-dhau-kauj ruam rau kev nkag siab cov qauv tsim qauv ntawm cov ntawv luam tawm Circuit Court Board. Fabrications ntawm cov laug cam muaj ntau txheej. Cia peb nkag siab qhov no nrog kev sib lawv liag:

Substrate Cov Khoom Siv:

Lub hauv paus pib tshaj li lub rooj tsavxwm yas ua nrog iav yog lub substrate. Ib substrate yog ib tug qauv diielectric ntawm ib daim ntawv feem ntau yog ua los ntawm epoxy resins thiab iav ntawv. Ib substrate yog tsim nyob rau hauv xws li txoj kev uas nws tuaj yeem ua tau raws li qhov yuav tsum tau ua piv txwv kev hloov pauv kub (tg).

Lamination:

Raws li lub npe los ntawm lub npe, Lamination kuj yog ib txoj hauv kev kom tau txais cov khoom lag luam zoo li thermal expansion, shear lub zog, thiab hloov cua sov (tg). Lamination ua raws li kev kub siab. Lamination thiab substrate ua ke ua si lub luag haujlwm tseem ceeb hauv kev ntws ntawm cov khoom siv hluav taws xob hauv PCB.