Multilayer pcbyog tsuas yog muaj li muaj ntawm tooj liab ntawv ci, expreg, thiab tub ntxhais tub ntxhais. Muaj ob hom lamination qauv, uas yog, lub rooj zaum lamination ntawm tooj liab ntawv ci thiab cov tub ntxhais xyaum ua qauv thiab cov tub ntxhais tub ntxhais xyaum ua haujlwm. Tus tooj liab ntawv ci thiab cov tub ntxhais tub ntxhais cov qauv kev coj ua tau zoo dua, thiab cov qauv kev ua haujlwm tshwj xeeb (xws li rogess44350, thiab lwm yam.

1.Design yuav tsum tau nias cov qauv kom txo cov ntawv faib khoom, tus qauv Lamination, thiab lwm yam ntawm lub PCB

2.Conductor Tooj Liab Thickness

(1) Lub thickness ntawm tus neeg xyuas tooj tus tooj liab tau qhia ntawm txheej coper, thiab cov tuab ntawm cov txheej hauv qab yog qhov tuab ntawm cov txheej hauv qab. Ntawm daim duab kos duab, txheej txheej sab nraud kom zoo yog cim raws li "tooj liab txheej tooj liab thickness yog cim raws li" tooj liab ntawv ci thickness ".

(2) Kev ceev faj rau daim ntawv thov ntawm 2oz thiab siab dua tuab hauv qab tus tooj liab yuav tsum tau siv cov symmetrically thoob plaws ntawm pawg.

Tsis txhob tso lawv rau ntawm L2 thiab LN-2 txheej ntau li ntau tau, uas yog, cov txheej txheem thib ob, kom tsis txhob muaj qhov chaw tsis sib xws thiab lub ntsej muag pcb.

3. Yuav tsum muaj rau nias qauv

Tus thawj coj lamination yog ib txoj kev tseem ceeb hauv PCB. Qhov ntau ntawm cov lamination, qhov tsis zoo ntawm cov kev sib ncag ntawm cov qhov sib txawv ntawm cov PCB, tshwj xeeb tshaj yog thaum nws yog asymmetricalt. Lamination tau muaj rau stacking, xws li tooj liab tuab thiab dielectric thickness yuav tsum phim.