Kev tswj qhov loj me thiab qhov hloov pauv ntawm 6-txheej PCB: qhov kub thiab txias ib puag ncig thiab kev ntxhov siab

Yuav daws qhov teeb meem ntawm kev tswj qhov loj me thiab qhov hloov pauv ntawm 6-txheej PCB: ua tib zoo kawm txog qhov kub thiab txias ib puag ncig thiab cov neeg kho tshuab kev ntxhov siab

Taw qhia

Printed Circuit Board (PCB) tsim thiab kev tsim khoom ntsib ntau yam teeb meem, tshwj xeeb tshaj yog nyob rau hauv kev tswj xyuas qhov ntev thiab txo qhov sib txawv ntawm qhov sib txawv. Qhov no yog qhov tseeb tshwj xeeb tshaj yog rau 6-txheej PCBs uas raug rau qhov kub thiab txias ib puag ncig thiab txhua yam kev ntxhov siab. Hauv cov ntawv blog no, peb yuav tshawb txog qee cov tswv yim zoo thiab cov tswv yim los daws cov teeb meem no thiab ua kom muaj kev ruaj ntseg thiab kev ntseeg siab ntawm PCBs.

To taub qhov teeb meem

Yuav kom daws tau qhov teeb meem zoo, nws yog ib qho tseem ceeb kom nkag siab txog nws cov hauv paus ntsiab lus. Nyob rau hauv rooj plaub ntawm kev tswj qhov loj me thiab qhov hloov pauv ntawm 6-txheej PCBs, ob lub ntsiab lus tseem ceeb ua lub luag haujlwm tseem ceeb: qhov kub thiab txias ib puag ncig thiab kev ntxhov siab.

Kub kub ib puag ncig

Qhov kub thiab txias ib puag ncig, ob qho tib si thaum lub sijhawm ua haujlwm thiab tsim khoom, tuaj yeem ua rau thermal expansion thiab contraction hauv PCB cov khoom. Qhov no tuaj yeem ua rau muaj kev hloov pauv ntawm qhov loj thiab qhov ntev ntawm lub rooj tsavxwm, cuam tshuam nws txoj haujlwm tag nrho. Tsis tas li ntawd, cov cua kub ntau dhau tuaj yeem ua rau cov khoom sib koom ua ke kom tsis muaj zog lossis tawg, ua rau muaj kev hloov pauv ntxiv.

Mechanical stress

Mechanical stress (xws li khoov, deflection lossis vibration) kuj tuaj yeem cuam tshuam rau kev tswj qhov ntev thiab qhov ruaj khov ntawm 6-txheej PCBs. Thaum raug rau sab nraud quab yuam, PCB cov ntaub ntawv thiab cov khoom yuav ua rau lub cev deform, muaj peev xwm hloov lawv qhov ntev. Qhov no tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas PCB feem ntau raug kev txav los yog kev ntxhov siab.

Solutions thiab Technologies

1. Kev xaiv cov khoom siv

Kev xaiv cov ntaub ntawv raug yog qhov tseem ceeb rau kev txo qis kev tswj qhov ntev thiab qhov sib txawv ntawm 6-txheej PCBs. Xaiv cov khoom uas tsis tshua muaj coefficient ntawm thermal expansion (CTE) vim lawv tsis tshua muaj kev cuam tshuam rau thermal fluctuations. High-temperature laminates, xws li polyimide, kuj tseem siv tau los txhim kho qhov ruaj khov ntawm qhov kub thiab txias.

2. Kev tswj cua sov

Kev ua raws li cov txheej txheem tswj xyuas thermal zoo yog qhov tseem ceeb rau kev ua haujlwm nrog qhov kub thiab txias. Ua kom muaj cua sov kom zoo los ntawm kev siv cov dab dej kub, thermal vias, thiab thermal pads pab tswj qhov kub thiab txias ntawm tag nrho PCB. Qhov no txo ​​qhov muaj peev xwm rau thermal expansion thiab contraction, txo cov teeb meem tswj qhov seem.

3. Mechanical stress relief

Ua cov kauj ruam los txo qis thiab cuam tshuam cov neeg kho tshuab kev ntxhov siab tuaj yeem txhim kho qhov ruaj khov ntawm 6-txheej PCBs. Kev txhawb nqa lub rooj tsavxwm nrog cov qauv kev txhawb nqa lossis kev siv cov stiffeners tuaj yeem pab txo qis kev khoov thiab deflection, tiv thaiv cov teeb meem ntawm qhov loj me. Tsis tas li ntawd, kev siv thev naus laus zis thev naus laus zis tuaj yeem txo qhov cuam tshuam ntawm kev co sab nraud ntawm PCB.

4. Kev ntseeg tau tsim

Tsim PCBs nrog kev ntseeg siab hauv lub siab ua lub luag haujlwm tseem ceeb hauv kev txo qis qhov sib txawv. Qhov no suav nrog kev txiav txim siab txog yam xws li kev taug kev taug kev, qhov chaw tso khoom, thiab txheej txheej txheej. Ua tib zoo npaj cov kab thiab cov dav hlau hauv av kom txo tau qhov ua tau ntawm cov teeb liab degradation vim qhov hloov pauv. Kev muab cov khoom pov thawj kom zoo tuaj yeem tiv thaiv qhov kub kub los ntawm kev tsim cov cua sov ntau dhau, ntxiv kev tiv thaiv cov teeb meem loj.

5. Cov txheej txheem tsim khoom muaj zog

Kev siv cov txheej txheem tsim khoom siab heev uas saib xyuas thiab tswj qhov kub thiab txias tuaj yeem pab tswj qhov ntsuas qhov ntev thiab txo qis qhov hloov pauv. Cov txheej txheem vuam cov txheej txheem thiab cov khoom siv hluav taws xob kom raug thaum lub sij hawm sib dhos pab ua kom cov pob qij txha muaj zog thiab txhim khu kev qha. Tsis tas li ntawd, kev siv cov txheej txheem tuav thiab khaws cia kom zoo thaum tsim khoom thiab xa khoom tuaj yeem txo qhov kev hloov pauv uas tshwm sim los ntawm kev ntxhov siab ntawm cov tshuab.

Hauv kev xaus

Ua tiav qhov kev tswj xyuas qhov tseeb thiab qhov ruaj khov nyob rau hauv 6-txheej PCB, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias qhov chaw thiab cov neeg kho tshuab kev ntxhov siab, nthuav tawm cov teeb meem tshwj xeeb. Cov kev cov nyom no tuaj yeem kov yeej los ntawm kev ua tib zoo xaiv cov ntaub ntawv, kev siv cov kev tswj xyuas thermal thiab cov txheej txheem kev ntxhov siab, tsim kom muaj kev ntseeg siab, thiab siv cov txheej txheem tsim khoom. Nco ntsoov tias txoj hauv kev ua tau zoo los daws cov teeb meem no tuaj yeem ua kom muaj kev ruaj ntseg thiab kev ntseeg siab ntawm 6-txheej PCB, yog li ua kom nws ua tau zoo hauv ntau yam kev siv tseem ceeb.