- PCB, lossis Printed Circuit Board , muaj nyob hauv yuav luag txhua yam khoom siv hluav taws xob. Yog tias muaj cov khoom siv hluav taws xob hauv qee yam khoom siv, lawv txhua tus tau nruab rau ntawm PCBs ntawm qhov sib txawv. Ntxiv nrog rau kev kho ntau yam me me, lub luag haujlwm tseem ceeb ntawm PCB yog muab cov khoom siv hluav taws xob sib txuas ntawm sab saud. Raws li cov khoom siv hluav taws xob tau dhau los ua qhov nyuaj, ntau thiab ntau qhov yuav tsum tau ua, thiab cov khoom siv hluav taws xob thiab cov khoom ntawm PCBs tau dhau los ua ntau thiab ntom.
- PWB, tseem hu ua Printed wire board, yog Ameslikas hu ua British. Lub sijhawm ntawd, tsuas muaj daim duab kos rau ntawm lub rooj tsavxwm Circuit Court uas tsis muaj cov khoom luam tawm, yog li nws yog ib qho tseem ceeb ntawm lub rooj tsavxwm. Txij li thaum muaj ntau tus neeg Askiv ib txwm muaj thiab qee tus neeg Hong Kong tseem hu ua Circuit Boards PWB, PCB thiab PWB yeej yog tib yam.
- Cov khoom siv hauv kev tsim cov PWBs thiab PCBs
Cov ntaub ntawv siv hauv PWBs thiab PCB yog nyob ntawm daim ntawv thov ntawm lub rooj tsavxwm. Nyob rau hauv cov board hom, koj muaj conductive thiab non-conductive txheej. Cov khaubncaws sab nraud povtseg feem ntau yog siv rau cov teeb liab kis tau tus mob, thaum cov khaubncaws sab nraud povtseg tsis yog siv rau kev sib cais hluav taws xob.
1) Qee yam khoom siv PCB siv rau cov txheej txheem muaj xws li tooj liab, nyiaj, thiab kub. Thaum kub muaj qhov siab tshaj plaws conductivity thiab qis tshaj, nws cov nqi siab txwv nws txoj kev siv. Tooj liab yog qhov kev xaiv zoo tshaj plaws rau feem ntau PWB thiab PCB daim ntawv thov vim nws cov khoom zoo xws li tus nqi qis thiab kev ua haujlwm zoo.
2) Cov txheej tsis-conductive yog ua los ntawm cov khoom siv hluav taws xob tsawg. Cov khoom siv rau txheej no suav nrog FR-4, cov khoom siv epoxy sib xyaw, thiab cov ceramics. Cov ntaub ntawv no muaj cov khoom sib txawv insulating thiab thermal conductivity muaj peev xwm. Koj yuav pom tias FR-4 feem ntau tuaj nyob rau hauv ntau yam kev hloov pauv los txhim kho nws cov khoom dielectric.
