PCB multi-layer compaction yuav tsum xyuam xim rau dab tsi?

Tag nrho cov tuab thiab cov txheej txheem ntawm PCB multilayer board raug txwv los ntawm cov yam ntxwv ntawm PCB pawg thawj coj saib. Cov boards tshwj xeeb yog txwv nyob rau hauv lub thickness ntawm lub rooj tsavxwm uas tuaj yeem muab tau, yog li tus tsim qauv yuav tsum xav txog cov yam ntxwv ntawm cov txheej txheem tsim PCB thiab cov kev txwv ntawm PCB ua tshuab.

Multi-layer compaction txheej txheem ceev faj

Laminating yog txheej txheem ntawm kev sib txuas ntawm txhua txheej ntawm lub rooj tsav xwm hauv Circuit Court rau hauv tag nrho. Tag nrho cov txheej txheem suav nrog hnia siab, puv siab thiab txias siab. Thaum lub sij hawm hnia pressing theem, cov resin nkag mus rau hauv daim ntawv cog lus nto thiab sau cov voids nyob rau hauv kab, ces nkag mus rau tag nrho cov nias kom khi tag nrho cov voids. Lub thiaj li hu ua txias nias yog kom txias lub rooj tsav xwm Circuit Court sai thiab ua kom qhov loj me ruaj khov.

Laminating txheej txheem yuav tsum tau them sai sai rau qhov teeb meem, ua ntej ntawm tag nrho cov nyob rau hauv lub tsim, yuav tsum tau raws li qhov yuav tsum tau ntawm lub puab lub rooj tsavxwm, mas thickness, puab loj, qhov chaw, thiab lwm yam, yuav tsum tau tsim nyob rau hauv raws li cov kev cai tshwj xeeb, lub zuag qhia tag nrho cov core board yuav tsum tsis muaj qhib, luv luv, qhib, tsis muaj oxidation, tsis muaj residual zaj duab xis.

Qhov thib ob, thaum laminating multilayer boards, lub puab core boards yuav tsum tau kho. Cov txheej txheem kev kho mob suav nrog kev kho oxidation dub thiab kev kho Browning. Oxidation kev kho mob yog tsim ib tug dub oxide zaj duab xis nyob rau hauv lub puab tooj liab ntawv ci, thiab xim av kev kho mob yog tsim ib tug organic zaj duab xis nyob rau hauv lub puab tooj liab ntawv ci.

Thaum kawg, thaum laminating, peb yuav tsum tau xyuam xim rau peb qhov teeb meem: kub, siab thiab lub sijhawm. Qhov kub thiab txias feem ntau yog hais txog lub melting kub thiab curing kub ntawm cov resin, lub teeb kub ntawm lub phaj kub, qhov tseeb kub ntawm cov khoom thiab qhov kev hloov ntawm cov cua kub tus nqi. Cov kev ntsuas no xav tau kev saib xyuas. Raws li rau siab, lub hauv paus ntsiab lus tseem ceeb yog sau cov kab noj hniav interlayer nrog cov cob kom tshem tawm cov pa roj carbon monoxide thiab volatiles. Lub sij hawm tsis yog tsuas yog tswj los ntawm lub sij hawm siab, lub sij hawm cua sov thiab lub sij hawm gel.