Multilayer PCB piv rau tib lub vaj huam sib luag PCB, tsis hais txog nws qhov zoo nyob sab hauv, dhau ntawm qhov chaw, peb tuaj yeem pom qhov sib txawv, cov kev sib txawv no tseem ceeb heev rau kev ua haujlwm thiab ua haujlwm ntawm PCB thoob plaws nws lub neej. Qhov txiaj ntsig tseem ceeb ntawm PCB ntau txheej: lub rooj tsavxwm no tiv taus oxidation. Diversified structure, high density, txheej txheej tshuab, kom ntseeg tau tias qhov zoo ntawm lub rooj tsav xwm hauv Circuit yog nyab xeeb, tuaj yeem yooj yim siv. Cov hauv qab no yog cov yam ntxwv tseem ceeb ntawm kev ntseeg siab ntau lub rooj sib tham, uas yog, qhov zoo thiab qhov tsis zoo ntawm PCB ntau lub rooj sib tham:

1. Cov tooj liab tuab ntawm lub qhov phab ntsa ntawm PCB ntau pawg thawj coj yog ib txwm 25 microns;

Qhov Zoo: Txhim khu kev ntseeg, suav nrog txhim kho Z-axis txuas ntxiv.

Qhov tsis zoo: Tab sis muaj qee qhov txaus ntshai: teeb meem nrog qhov ua tsis tuaj yeem ua haujlwm hauv qhov xwm txheej, hauv kev siv tiag tiag, thaum tshuab lossis txo qis, hluav taws xob sib txuas thaum sib dhos (sab hauv txheej sib cais, qhov phab ntsa tawg) lossis nyob rau hauv qhov xwm txheej. IPC Class2 (tus qauv rau feem ntau cov chaw tsim khoom) xav tau PCB ntau lub rooj sib tham kom tsawg dua 20% tooj liab plated.

2. Tsis muaj kev kho vuam lossis qhib kev kho hluav taws xob

Cov txiaj ntsig: Cov khoom siv hluav taws xob zoo tshaj plaws ua kom ntseeg tau thiab muaj kev nyab xeeb, tsis muaj kev saib xyuas, tsis muaj kev pheej hmoo.

Qhov tsis zoo: PCB ntau txheej tau qhib yog tias ua haujlwm tsis raug. Txawm hais tias kho kom raug, tej zaum yuav muaj kev pheej hmoo ntawm kev ua tsis tiav nyob rau hauv cov xwm txheej load (kev co, thiab lwm yam), uas tuaj yeem ua rau tsis ua haujlwm tiag.

3. Tshaj li qhov yuav tsum tau ua kom huv ntawm IPC cov lus qhia tshwj xeeb

Qhov Zoo: Txhim kho kev huv ntawm PCB ntau lub rooj tsavxwm tuaj yeem txhim kho kev ntseeg tau.

Risks: Cov seem ntawm cov thaiv kab hlau rhuav, sib sau ua ke ntawm cov kab laug sab tuaj yeem ua rau muaj kev pheej hmoo rau cov ntaub thaiv npog, cov tshuaj ionic tuaj yeem ua rau muaj kev pheej hmoo ntawm kev xeb thiab ua paug ntawm qhov chaw weld, uas tuaj yeem ua rau muaj teeb meem kev ntseeg tau (cov hlau tsis zoo/hluav taws xob tsis ua haujlwm) thiab thaum kawg nce qhov tshwm sim ntawm qhov ua tsis tiav.

4. nruj me ntsis tswj kev ua haujlwm ntawm txhua qhov kev kho mob saum npoo av

Qhov zoo: vuam, kev ntseeg tau thiab txo kev pheej hmoo ntawm kev nkag mus rau hauv dej

Risks: Kev kho qhov chaw ntawm PCB ntau lub rooj sib tham qub qub tuaj yeem ua rau cov hlau hloov pauv, tej zaum yuav muaj teeb meem cuam tshuam, thaum dej nkag tuaj yeem ua rau muaj teeb meem thaum sib dhos thiab/lossis kev siv tiag tiag ntawm txheej, sib cais ntawm phab ntsa thiab phab ntsa (qhib Circuit), thiab lwm yam .

Txawm hais tias nyob hauv kev tsim khoom thiab txheej txheem lossis hauv kev siv tiag tiag, PCB ntau pawg thawj coj yuav tsum muaj kev ua haujlwm tau zoo, tau kawg, qhov no cuam tshuam nrog cov cuab yeej siv thiab qib thev naus laus zis ntawm PCB pawg thawj coj saib lub Hoobkas.