Hauv tsab ntawv tshaj tawm no, peb yuav tshawb xyuas qhov tsim nyog ntawm rigid-flex PCBs rau qhov kub thiab txias thiab muab kev nkag siab los pab koj txiav txim siab paub.
Thaum nws los txog rau cov khoom siv hluav taws xob thiab lawv cov khoom, ib qho tseem ceeb uas yuav tsum xav txog yog lawv qhov kub thiab txias. Ib puag ncig sib txawv tuaj yeem ua rau muaj kev sib tw sib txawv, thiab qhov chaw kub kub yuav tsum xav tau tshwj xeeb.
Nyob rau hauv xyoo tas los no, tau muaj kev txaus siab rau kev siv cov rigid-flex PCBs hauv ntau yam kev siv. Cov PCBs no muaj qhov tshwj xeeb zoo xws li qhov chaw txuag, muaj kev ntseeg siab thiab zoo dua cov teeb liab kev ncaj ncees. Txawm li cas los xij, ua ntej muab lawv tso rau hauv koj tus qauv tsim, nws yuav tsum paub seb lawv puas tuaj yeem tiv taus qhov kub thiab txias.
Nkag siab txog cov qauv nruj-flex PCB
Ua ntej, cia peb tham luv luv txog dab tsi rigid-flex PCBs yog thiab yuav ua li cas lawv tsim.Rigid-flex PCBs yog hybrid circuit boards uas muab cov tawv tawv thiab hloov tau yooj yim rau hauv ib chav. Lawv muab cov txiaj ntsig zoo ntawm ob hom PCBs, ua rau lawv muaj ntau yam thiab muaj peev xwm ua tau raws li qhov xav tau ntawm kev tsim qauv.
Ib qho kev nruj-flex PCB muaj ntau txheej txheej ntawm cov ntaub ntawv nruj txuas nrog cov txheej txheem yooj yim.Cov khaubncaws sab nraud povtseg muab cov qauv kev ruaj ntseg, thaum cov khaubncaws sab nraud povtseg cia lub rooj tsavxwm khoov lossis quav raws li xav tau. Cov qauv tshwj xeeb no ua rau PCBs siv rau hauv cov ntawv thov uas qhov chaw txwv tsis pub lossis lub rooj tsavxwm yuav tsum ua raws li cov duab tshwj xeeb.
Txheeb xyuas qhov cuam tshuam ntawm qhov kub thiab txias kom nruj-flex PCB
Ob peb yam tuaj rau hauv kev ua si thaum ntsuas qhov tsim nyog ntawm rigid-flex PCBs rau siv nyob rau hauv high-temperature ib puag ncig.Qhov kev txiav txim siab tseem ceeb tshaj plaws yog qhov cuam tshuam ntawm qhov kub thiab txias ntawm cov khoom siv hauv kev tsim kho PCB.
Cov khaubncaws sab nraud povtseg ntawm rigid-flex boards feem ntau yog ua los ntawm cov ntaub ntawv xws li FR-4, uas paub txog lawv cov thermal stability thiab nplaim retardancy.Cov ntaub ntawv no feem ntau tuaj yeem tiv taus kub txog 130-140 ° C. Txawm li cas los xij, cov txheej txheem hloov pauv ntawm PCB feem ntau yog ua los ntawm polyimide lossis cov ntaub ntawv zoo sib xws, uas muaj cov cua sov tsis zoo.
Cov ntaub ntawv Polyimide feem ntau siv hauv cov PCB hloov tau yooj yim tuaj yeem tiv taus qhov kub txog li 250-300 ° C.Txawm li cas los xij, qhov ntev ntev ntawm qhov kub siab tuaj yeem ua rau cov khoom siv degradation, txo tag nrho lub neej thiab kev ua haujlwm ntawm PCB. Yog li ntawd, cov kev cai kub tshwj xeeb ntawm cov ntawv thov kub kub yuav tsum raug txiav txim siab thiab cov ntaub ntawv tsim nyog xaiv raws li.
Mitigation Strategies for High Temperature Environments rau rigid flexible printed circuit board
Thaum cov PCBs nruj-flex tuaj yeem muaj kev txwv nyob rau hauv qhov chaw kub kub, muaj ntau lub tswv yim los txo cov teebmeem thiab txhim kho lawv cov kev ua tau zoo.
1. Cov khoom siv xaiv:Xaiv cov ntaub ntawv nrog cov cua sov siab dua rau cov txheej txheem yooj yim tuaj yeem txhim kho qhov kub thiab txias ntawm PCB. Cov ntaub ntawv Polyimide nrog cov khoom siv hluav taws xob zoo dua qub, xws li siab Tg (iav hloov pauv kub), tuaj yeem siv rau hauv qhov hloov pauv tau los ua kom lub PCB muaj peev xwm tiv taus qhov kub thiab txias.
2. Copper hnyav thiab kab dav:Ua kom tooj liab qhov hnyav thiab kab dav dav ntawm PCB pab kom cov cua sov tau zoo dua, yog li txo qhov kev pheej hmoo ntawm cov cua sov hauv zos. Thicker tooj liab kab thiab hnyav tooj liab txheej, nrog rau cov neeg xyuas pib loj dua ntu, txhim kho lub rooj tsav xwm lub peev xwm kom dissipate cua sov.
3. Thermal tswj technology:Kev siv cov thev naus laus zis thev naus laus zis zoo, xws li cov dab dej kub, qhov hluav taws kub dissipation, thiab cov txheej txheem ua kom txias, tuaj yeem pab ua kom qhov nruab nrab kub ntawm PCB nyob rau hauv ib qho kev pom zoo. Cov thev naus laus zis no pab ncaj qha tshav kub kom deb ntawm cov khoom tseem ceeb thiab tiv thaiv kev puas tsuaj.
4. Kev ntsuam xyuas thiab pov thawj:Kev soj ntsuam nruj thiab kev txheeb xyuas cov txheej txheem yuav tsum tau ua los xyuas kom meej tias cov PCBs nruj-flex tuaj yeem tiv taus cov xwm txheej kub kub. Kev ntsuas kub ntawm kev sib tw, cov qauv simulation, thiab cov software tsom xam thermal tuaj yeem muab kev nkag siab zoo rau PCB thermal kev ua tau zoo thiab pab txheeb xyuas thaj chaw muaj kev txhawj xeeb.
5. Kev txawj ntse ntawm tus neeg muag khoom:Nws yog ib qho tseem ceeb uas yuav tau xaiv ib qho kev txhim khu kev qha, kev paub txog PCB cov chaw tsim khoom nrog cov kws tshaj lij hauv cov ntawv thov kub. Ib tus neeg muag khoom paub txog tuaj yeem coj koj los ntawm cov txheej txheem xaiv cov khoom, muab cov lus pom zoo ntawm cov tswv yim txo qis, thiab xa cov khoom zoo siab-flex PCBs uas ua tau raws li koj cov kev xav tau tshwj xeeb.
Nyob rau hauv xaus
Txawm hais tias nruj-flex PCBs muaj ntau yam zoo nyob rau hauv cov nqe lus ntawm qhov chaw txuag thiab kev ntseeg tau, lawv qhov tsim nyog rau qhov kub thiab txias ib puag ncig yog nyob ntawm kev ua tib zoo xav txog ntau yam.Nkag siab txog qhov cuam tshuam ntawm qhov kub thiab txias ntawm cov ntaub ntawv siv, siv cov tswv yim txo kom tsim nyog, thiab ua haujlwm nrog cov neeg siv khoom paub txog yog cov kauj ruam tseem ceeb hauv kev ua kom muaj kev ua tau zoo ntawm kev siv PCB hauv kev siv kub.
Yog li, cov rigid-flex boards puas tuaj yeem siv rau hauv qhov chaw kub kub? Cov lus teb yog nyob rau hauv kev soj ntsuam kom zoo ntawm koj cov kev xav tau kub siab, tsim nyog tsim thiab xaiv cov khoom siv, thiab kev siv cov txheej txheem tswj thermal zoo.Los ntawm kev txiav txim siab txog cov xwm txheej no, koj tuaj yeem txiav txim siab paub thiab ua kom zoo dua qhov zoo ntawm cov khoom siv nruj-flex PCBs thaum ua kom muaj kev ntseeg siab ntawm koj cov khoom siv hluav taws xob hauv qhov chaw kub.
Post lub sij hawm: Sep-16-2023
Rov qab