PCBs yog nyob rau hauv yuav luag txhua qhov thev naus laus zis uas peb siv niaj hnub no. Lawv lub luag haujlwm tseem ceeb yog: 1. Siv hluav taws xob sib txuas hauv tshuab hluav taws xob thiab 2. Los muab kev txhawb zog ntawm cov tshuab (ei cov khoom siv hluav taws xob tau txuas mus tas li rau pawg tswj hwm). Cov PCBs ua nyob rau txheej txheej zoo ib yam li lasagna. Cov khaubncaws sab nraud povtseg no yog tsim cov khoom sib txawv kom thiaj li ua tus qauv, ua haujlwm ntev, kev coj ua, thiab lub koom haum rau cov khoom siv.
Cov Ntawv Tshaj Tawm Circuit Court feem ntau suav nrog kev kho tshuab txheej, daim npog ntsej muag txheej, silkscreen khaubncaws sab nraud povtseg, cam muab tshuaj txhuam cov khaubncaws sab nraud povtseg thiab ib lossis ntau txheej tooj liab nyob ntawm cov txheej txheem yooj yim.
Lub txheej txheej sab nraud muaj cov ciaj ciam (duab thiab lub cev qhov loj me) ntawm PCB. Ntxiv cov khaubncaws sab nraud povtseg ntxiv yuav muaj cov cuab yeej teev tseg thiab lwm yam ntaub ntawv kho tshuab.
Cov khaubncaws sab nraud povtseg muaj cov kab hla kev txuas nrog rau cov av thiab cov dav hlau zog.
Daim npog ntsej muag yog solder tiv thaiv lub tsho tiv no uas feem ntau siv rau txheej sab nrauv ntawm PCB rau kev tiv thaiv kev tiv thaiv oxidation thiab tiv thaiv cov txuas hniav ntawm txoj kev ua kom sib nrug ntawm cov khoom sib txig sib xyaw nrog cov sib npaug. Daim npog ntsej muag yog feem ntau ntsuab tab sis kuj muaj nyob hauv ntau xim.
Cov txheej txheem silkscreen muaj cov qauv siv qauv siv, thiab lwm yam, rau cov khoom siv hluav taws xob nyob rau sab saum toj thiab hauv qab ntawm pawg thawj coj. Cov ntawv feem ntau luam tawm nrog tus cwj mem tsis muaj qhov ua tau ntev. Silkscreen feem ntau yog xim dawb tab sis kuj tseem muaj nyob hauv lwm cov xim thiab.
Zov khaub noom muab cov khaubncaws sab nraud povtseg muaj qhov chaw, qhov loj me thiab cov duab ntawm SMD lub ntsuas phoo ntawm lub rooj tsavxwm. Cov ntaub ntawv no tom qab ntawd siv los ua cov apertures hauv SMT stencil.
Vim Li Cas Rau Kev Siv Ntau Cov Khaub Ncaws Ntau Hauv Cov Ntawv Luam Hluav Taws Xob.
Miniaturization
Multilayer PCBs pab kom cov neeg tsim qauv txo cov board loj los ntawm kev ntxiv cov khaubncaws sab nraud povtseg. Qhov no yog qhov tseem ceeb heev raws li miniaturization ntawm cov khoom siv hluav taws xob txuas ntxiv mus tsav txoj kev lag luam.
Txo tsis yooj yim
Ntau cov khaubncaws sab nraud povtseg ua rau PCB txoj kev yoojyim vim tias tooj liab taug hauv ib txheej tuaj yeem txuas mus rau ib co kab ntawm lwm txheej kom tiav txoj kev.
Cov khoom siv hauv av thiab rho tawm hauv av
Multi-layer PCBs (4 lossis ntau txheej) muaj lawv cov khoom siv thiab av. Qhov no muab kev sib cais ntawm kev muab thiab cov pins hauv av tiv thaiv luv Circuit Court.
Kev Siv Yooj Yim Siv & Txo Phaus
Tshem tawm lossis txo qhov xav tau ntawm cov txuas txuas rau ntau yam sib cais ntawm PCBs.
Ua haujlwm siab dua ntawm kev sib dhos