Qhov zoo tshaj plaws interlayer rwb thaiv tsev kev ua tau zoo ntawm ntau txheej PCB

Hauv tsab ntawv blog no, peb yuav tshawb txog ntau yam txuj ci thiab cov tswv yim kom ua tiav kev ua haujlwm zoo rwb thaiv tsev hauvmulti-layer PCBs.

Multilayer PCBs tau siv dav hauv ntau yam khoom siv hluav taws xob vim lawv qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom. Txawm li cas los xij, ib qho tseem ceeb ntawm kev tsim thiab tsim cov vaj huam sib luag nyuaj no yog ua kom ntseeg tau tias lawv cov rwb thaiv tsev interlayer ua tau raws li qhov tsim nyog.

Rwb thaiv tsev yog qhov tseem ceeb hauv multilayer PCBs vim nws tiv thaiv cov teeb liab cuam tshuam thiab ua kom muaj kev ua haujlwm zoo ntawm Circuit Court. Kev rwb thaiv tsev tsis zoo ntawm cov khaubncaws sab nraud povtseg tuaj yeem ua rau cov teeb liab to, crosstalk, thiab thaum kawg cov khoom siv hluav taws xob tsis ua haujlwm. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xav txog thiab siv cov kev ntsuas hauv qab no thaum tsim thiab tsim cov txheej txheem:

1. Xaiv cov khoom tsim nyog:

Kev xaiv ntawm cov ntaub ntawv siv nyob rau hauv multilayer PCB qauv zoo heev cuam tshuam nws interlayer rwb thaiv tsev zog. Insulating cov ntaub ntawv xws li prepreg thiab core cov ntaub ntawv yuav tsum muaj siab breakdown voltage, tsis tshua muaj dielectric tsis tu ncua thiab tsawg dissipation yam. Tsis tas li ntawd, xav txog cov ntaub ntawv uas muaj cov dej noo zoo thiab thermal stability yog qhov tseem ceeb rau kev tswj xyuas cov khoom rwb thaiv tsev nyob rau lub sijhawm ntev.

2. Controllable impedance tsim:

Kev tswj kom zoo ntawm cov theem impedance nyob rau hauv multilayer PCB tsim yog ib qho tseem ceeb los xyuas kom meej lub teeb pom kev ncaj ncees thiab tsis txhob teeb liab distortion. Los ntawm kev ua tib zoo xam cov kab dav dav, qhov sib nrug, thiab txheej txheej thicknesses, qhov kev pheej hmoo ntawm cov teeb liab xau vim tsis raug rwb thaiv tsev tuaj yeem txo qis. Ua tiav qhov tseeb thiab zoo ib yam impedance qhov tseem ceeb nrog lub impedance lub laij lej thiab tsim cov cai los ntawm PCB manufacturing software.

3. Lub rwb thaiv tsev txheej thickness txaus:

Lub thickness ntawm cov rwb thaiv tsev txheej ntawm cov txheej tooj liab uas nyob ib sab plays lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev xau thiab txhim kho kev ua haujlwm ntawm kev rwb thaiv tsev tag nrho. Cov txheej txheem tsim qauv pom zoo kom tswj xyuas qhov tsawg kawg nkaus rwb thaiv tsev tuab kom tiv thaiv hluav taws xob tawg. Nws yog ib qho tseem ceeb kom sib npaug thickness kom tau raws li qhov yuav tsum tau rwb thaiv tsev yam tsis muaj kev cuam tshuam rau tag nrho cov thickness thiab yooj ntawm PCB.

4. Kev sib raug zoo thiab kev sau npe:

Thaum lub sij hawm lamination, kev sib raug zoo thiab kev sau npe ntawm cov tub ntxhais thiab prepreg txheej yuav tsum tau ua kom ntseeg tau. Kev tsis ncaj ncees los yog kev sau npe yuam kev tuaj yeem ua rau qhov tsis sib xws ntawm huab cua tsis sib xws lossis rwb thaiv tsev tuab, thaum kawg cuam tshuam rau kev ua haujlwm rwb thaiv tsev interlayer. Kev siv cov txheej txheem kho qhov muag kho qhov muag tau zoo tuaj yeem txhim kho qhov raug thiab sib xws ntawm koj cov txheej txheem lamination.

5. Tswj txheej txheem lamination:

Cov txheej txheem lamination yog cov kauj ruam tseem ceeb hauv kev tsim ntau txheej PCB, uas cuam tshuam ncaj qha rau cov txheej txheem rwb thaiv tsev. Kev tswj cov txheej txheem nruj xws li lub siab, qhov kub thiab lub sijhawm yuav tsum tau muab coj los ua kom ua tiav cov txheej txheem zoo ib yam thiab txhim khu kev qha hauv cov txheej txheem. Kev saib xyuas tsis tu ncua thiab kev txheeb xyuas cov txheej txheem lamination ua kom muaj qhov sib xws ntawm cov rwb thaiv tsev zoo thoob plaws hauv cov txheej txheem tsim khoom.

6. Kev tshuaj xyuas thiab kev sim:

Txhawm rau kom ntseeg tau tias cov txheej txheem rwb thaiv tsev interlayer ntawm ntau txheej PCBs ua tau raws li cov qauv xav tau, kev tshuaj xyuas nruj thiab cov txheej txheem yuav tsum tau ua. Rwb thaiv tsev kev ua tau zoo yog feem ntau raug soj ntsuam siv qhov ntsuas hluav taws xob siab, ntsuas kev tiv thaiv hluav taws xob, thiab ntsuas lub voj voog thermal. Txhua lub rooj tsav xwm tsis zoo lossis txheej txheej yuav tsum raug txheeb xyuas thiab kho ua ntej ua haujlwm ntxiv lossis xa khoom xa tuaj.

Los ntawm kev tsom mus rau qhov tseem ceeb no, cov neeg tsim qauv thiab cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias cov txheej txheem rwb thaiv tsev ntawm cov txheej txheem PCBs ua tau raws li qhov tsim nyog. Kev nqis peev lub sij hawm thiab cov peev txheej rau hauv kev xaiv cov khoom tsim nyog, tswj kev tsim impedance, kev rwb thaiv tsev tuab txaus, kev sib raug zoo, kev tswj lamination, thiab kev sim nruj yuav ua rau muaj kev ntseeg siab, ua haujlwm siab ntau PCB.

Hauv cov ntsiab lus

Ua kom tau txais kev pom zoo ntawm cov txheej txheem rwb thaiv tsev yog qhov tseem ceeb rau kev ua haujlwm txhim khu kev qha ntawm multilayer PCBs hauv cov khoom siv hluav taws xob. Ua raws li cov tswv yim thiab cov tswv yim sib tham thaum lub sij hawm tsim thiab tsim cov txheej txheem yuav pab txo cov teeb liab cuam tshuam, kev sib tham sib tham, thiab kev ua tsis tiav. Nco ntsoov, kev rwb thaiv tsev kom zoo yog lub hauv paus ntawm kev ua haujlwm zoo, muaj zog PCB tsim.