Ntawm (ntawm), qhov no yog ib lub qhov siv tau siv los ua kev coj los yog txuas tooj liab ntawv ntawm cov qauv sib txawv ntawm cov txheej txheem Circuit Court. Piv txwv li (xws li lub qhov muag tsis pom kev, tab sis tsis tuaj yeem ntxig cov khoom sib xyaw ua lossis tooj liab-plated cov khoom siv. Vim tias tus PCB yog tsim los ntawm ntau tus tooj liab feet yuav tsis muaj kev sib txuas lus nrog rau ntawm lub qhov (ntawm), yog li muaj cov npe ntawm Suav ntawm.
Tus yam ntxwv yog: Txhawm rau kom tau raws li cov kev xav tau ntawm cov neeg siv khoom, hla ntawm qhov ntawm Circuit Court Board yuav tsum tau sau nrog qhov. Nyob rau hauv txoj kev no, nyob rau hauv tus txheej txheem ntawm kev hloov cov txheej txheem hloov cov txheej txheem, lub mesh dawb yog siv los ua kom tiav cov ntsej muag yas thiab cov ntsaws rau ntawm cov khoom siv hluav taws xob kom tsim tau ruaj khov. Qhov zoo tshaj yog kev ntseeg tau thiab daim ntawv thov yog zoo meej dua. Vias tsuas yog ua lub luag haujlwm ntawm kev sib txuas lus thiab kev ua kom haum ntawm cov voj voog. Nrog rau kev txhim kho nrawm ntawm cov khoom siv hluav taws xob, cov kev xav tau tseem ceeb tseem yuav muab tso rau ntawm cov txheej txheem thiab cov khoom lag luam saum npoo av ntawm cov khoom lag luam hluav taws xob. Cov txheej txheem ntawm plugging ntawm qhov tau thov, thiab cov cai hauv qab no yuav tsum tau ua tib lub sijhawm: 1. 2. Yuav tsum muaj tin thiab coj nyob rau hauv lub qhov, thiab yuav tsum muaj ib qho thickness (4um) uas tsis muaj daim npog ntsej muag sib zog tuaj yeem nkag mus rau hauv lub hau hlaws hauv lub qhov. 3. Lub qhov taub yuav tsum muaj daim npog qhov muag plug lub qhov, opaque, thiab yuav tsum tsis txhob muaj tin rings, tin beads, thiab flatness.
Qhov muag tsis pom: Nws yog txuas rau sab nraud ntawm cov PCRAt hauv PCB nrog cov txheej nyob sab hauv los ntawm plating qhov. Vim tias sab nraud tsis tuaj yeem pom, nws yog hu ua qhov muag tsis pom kev. Nyob rau tib lub sijhawm, txhawm rau nce qhov chaw siv ntawm PCB Circuit Txheej, Qhov muag tsis pom kev siv. Ntawd yog, ib qho ntawm lub qhov mus rau ib qho chaw ntawm cov ntawv luam tawm.
Nta: Qhov muag tsis pom qhov yog nyob rau sab saum toj thiab hauv qab ntawm cov Circuit Court Board nrog qee qhov tob. Lawv tau siv los txuas cov kab saum npoo thiab cov kab sab hauv hauv qab no. Qhov tob ntawm lub qhov feem ntau tsis tshaj ib qho piv txwv (aperture). Txoj kev ntau lawm yuav tsum tau tshwj xeeb rau qhov tob ntawm qhov drilling (Z axis) kom yog txoj cai. Yog tias koj tsis them sai sai, nws yuav ua rau muaj kev nyuaj siab hauv electroplating nyob rau hauv lub qhov, yog li yuav luag tsis muaj lub Hoobkas adopts nws. Nws tseem ua tau kom tso cov txheej txheem sib xyaw uas yuav tsum tau txuas ua ntej hauv cov txheej txheem ntawm tus kheej. Lub qhov yog drilled ua ntej, thiab tom qab ntawd glued ua ke, tab sis muaj kev tshaj tawm ntau thiab cov khoom siv sib npaug yuav tsum muaj.
Fortied Vias yog txuas nruab nrab ntawm cov txheej txheem sib txuas hauv pcb tab sis tsis txuas nrog cov khaubncaws sab nraud, thiab kuj txhais tau tias ntawm qhov uas tsis txuas ntxiv rau saum npoo ntawm Circuit Court Board.
Nta: Cov txheej txheem no tsis tuaj yeem ua tiav los ntawm kev nqus dej tom qab kev sib haum. Nws yuav tsum tau drilled thaum lub sijhawm ntawm tus kheej circuit txheej txheej. Ua ntej, cov txheej sab hauv yog ib nrab uas tau sib khi thiab tom qab ntawd electroplated ua ntej. Thaum kawg, nws tuaj yeem yog sib raug zoo tag nrho, uas yog kev coj zoo tshaj qhov qub. Qhov thiab cov dig muag qhov siv sijhawm ntau, yog li tus nqi yog qhov kim tshaj plaws. Cov txheej txheem no feem ntau tsuas yog siv rau cov laug cam hluav taws xob hluav taws xob ua kom cov chaw siv tau ntawm lwm cov khaubncaws sab nraud
Nyob rau hauv PCB ntau lawm txheej txheem, drilling yog qhov tseem ceeb heev, tsis ua tib zoo. Vim tias Drilling yog los tho qhov yuav tsum tau los ntawm qhov ntawm lub tooj liab clad board kom muab cov hluav taws xob sib txuas thiab kho cov haujlwm ntawm lub cuab yeej. Yog tias txoj haujlwm tsis raug, yuav muaj teeb meem hauv qhov ntawm cov kev siv nrog Circuit Cours, thiab tag nrho cov txheej txheem drilling yog qhov tseem ceeb heev.
