6 Txheej Multilayer PCB los ua ke nrog faus qhov

6-txheej PCB (Printed Circuit Board) yog ib hom multilayer PCB uas muaj rau txheej ntawm cov khoom siv hluav taws xob sib cais los ntawm cov txheej txheem insulating (cov khoom siv hluav taws xob). Txhua txheej tuaj yeem siv los ua cov cim qhia, muab lub zog thiab cov dav hlau hauv av, thiab tsim kev sib txuas ntawm cov khoom sib txuas. Ntawm no yog ib qho kev taw qhia rau 6-txheej PCBs:

1. Layer Configuration:6-txheej PCB feem ntau muaj cov txheej hauv qab no, pib los ntawm cov txheej txheem sab nraud thiab txav mus rau sab hauv:

● Sab saum toj teeb liab txheej

●Sab hauv teeb liab txheej 1

●Sab hauv teeb liab txheej 2

●Sab hauv av lossis lub dav hlau fais fab

●Sab hauv av lossis lub dav hlau fais fab

●Hauv qab teeb liab txheej

2. Teeb liab Routing: Sab saum toj thiab hauv qab cov teeb liab txheej, nrog rau cov teeb liab sab hauv txheej, yog siv rau kev teeb tsa ntawm cov khoom ntawm PCB. Cov khaubncaws sab nraud povtseg no muaj cov kab uas muaj cov cim hluav taws xob ntawm cov khoom xws li ICs (Integrated Circuits), connectors, thiab passive Cheebtsam.

3. Fais fab thiab av dav hlau: Cov txheej sab hauv ntawm PCB feem ntau mob siab rau lub zog thiab cov dav hlau hauv av. Cov dav hlau no muab cov kev siv hluav taws xob ruaj khov thiab tsis muaj impedance txoj hauv kev rau kev faib hluav taws xob thiab cov teeb liab rov qab txoj hauv kev, feem. Muaj kev mob siab rau lub zog thiab cov dav hlau hauv av yuav pab txo qis kev cuam tshuam ntawm electromagnetic cuam tshuam (EMI), txhim kho cov teeb liab kev ncaj ncees, thiab muab kev tiv thaiv suab nrov zoo dua.

4. Stackup Design: Kev npaj thiab kev txiav txim ntawm cov khaubncaws sab nraud povtseg hauv 6-txheej PCB stackup yog qhov tseem ceeb rau kev ua tiav qhov kev xav tau hluav taws xob thiab teeb liab kev ncaj ncees. Cov neeg tsim qauv PCB ua tib zoo xav txog yam xws li teeb liab nthuav tawm qeeb, kev tswj xyuas impedance, thiab electromagnetic coupling thaum tsim lub stackup.

5. Inter-Layer Connections: Vias yog siv los tsim kev sib txuas hluav taws xob ntawm cov txheej txheem sib txawv ntawm PCB. Los ntawm-qhov vias nkag mus los ntawm txhua txheej ntawm lub rooj tsavxwm, thaum dig muag vias txuas txheej txheej rau ib lossis ntau txheej sab hauv, thiab faus vias txuas ob lossis ntau txheej sab hauv yam tsis nkag mus rau txheej txheej sab nraud.

6. Daim ntawv thov: 6-txheej PCBs feem ntau yog siv rau hauv cov khoom siv hluav taws xob thiab cov tshuab uas yuav tsum tau muaj kev sib txuas-rau-siab, xws li cov khoom siv sib txuas, kev tswj hwm kev lag luam, cov khoom siv kho mob, cov khoom siv sib txuas lus, thiab cov khoom siv hluav taws xob. Lawv muab qhov chaw routing txaus thiab txheej suav kom haum rau cov circuits nyuaj thaum tswj cov teeb liab kev ncaj ncees thiab kev ntseeg tau.

7. Kev txiav txim siab tsim: Tsim ib 6-txheej PCB yuav tsum tau ua tib zoo xav txog yam xws li teeb liab kev ncaj ncees, kev faib hluav taws xob, kev tswj xyuas thermal, thiab kev tsim khoom. PCB tsim cov cuab yeej software feem ntau siv los pab nrog layout, routing, thiab simulation kom ntseeg tau tias qhov kawg tsim ua tau raws li qhov yuav tsum tau ua thiab cov qauv kev ua haujlwm.