FR4 vs. Polyimide: Cov khoom siv twg tsim nyog rau kev hloov pauv hloov pauv?

Hauv qhov blog no, peb yuav tshawb nrhiav qhov sib txawv ntawm FR4 thiab polyimide cov ntaub ntawv thiab lawv qhov cuam tshuam rau flex Circuit Court tsim thiab kev ua haujlwm.

Flexible circuits, tseem hu ua flexible printed circuits (FPC), tau dhau los ua ib feem tseem ceeb ntawm cov khoom siv hluav taws xob niaj hnub no vim lawv muaj peev xwm khoov thiab sib tw.Cov kab hluav taws xob no tau siv dav hauv cov ntawv thov xws li smartphones, cov cuab yeej siv tau zoo, cov khoom siv hluav taws xob hauv tsheb, thiab cov khoom siv kho mob.Cov ntaub ntawv siv hauv kev tsim hluav taws xob hloov pauv tau ua lub luag haujlwm tseem ceeb hauv lawv cov kev ua haujlwm thiab kev ua haujlwm.Ob yam khoom siv feem ntau siv nyob rau hauv lub voj voog hloov tau yog FR4 thiab polyimide.

FR4 stands rau Nplaim Retardant 4 thiab yog fiberglass reinforced epoxy laminate.Nws yog dav siv los ua cov khoom siv rau cov ntawv luam tawm tsis zoo (PCBs).Txawm li cas los xij, FR4 kuj tuaj yeem siv rau hauv kev hloov pauv hloov pauv, txawm tias muaj kev txwv.Lub ntsiab zoo ntawm FR4 yog nws cov neeg kho tshuab siab zog thiab ruaj khov, ua rau nws haum rau cov ntawv thov uas nruj yog qhov tseem ceeb.Nws kuj tseem pheej yig dua piv rau lwm cov ntaub ntawv siv hauv cov khoom siv hluav taws xob hloov pauv.FR4 muaj cov khoom siv hluav taws xob zoo heev thiab ua haujlwm kub zoo.Txawm li cas los xij, vim nws qhov rigidity, nws tsis hloov pauv li lwm cov ntaub ntawv xws li polyimide.

Polyimide, ntawm qhov tod tes, yog ib qho kev ua haujlwm siab polymer uas muaj qhov tshwj xeeb yooj yim.Nws yog cov khoom siv thermoset uas tuaj yeem tiv taus qhov kub thiab txias thiab haum rau cov ntawv thov uas yuav tsum tau ua kom sov.Polyimide feem ntau raug xaiv los siv rau hauv cov khoom siv hluav taws xob hloov pauv vim nws qhov yooj yim thiab ua haujlwm ntev.Nws tuaj yeem khoov, twisted thiab folded yam tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm lub voj voog.Polyimide kuj muaj hluav taws xob rwb thaiv tsev zoo thiab tsis tshua muaj dielectric tsis tu ncua, uas muaj txiaj ntsig zoo rau kev siv ntau zaus.Txawm li cas los xij, polyimide feem ntau kim dua FR4 thiab nws lub zog txhua yam yuav qis dua hauv kev sib piv.

Ob leeg FR4 thiab polyimide muaj lawv tus kheej qhov zoo thiab kev txwv thaum nws los txog rau kev tsim khoom.FR4 feem ntau yog tsim los siv cov txheej txheem rho tawm qhov twg ntau tshaj tooj liab yog etched tam sim ntawd los tsim cov qauv Circuit Court uas xav tau.Cov txheej txheem no yog paub tab thiab siv dav hauv kev lag luam PCB.Polyimide, ntawm qhov tod tes, feem ntau yog tsim los siv cov txheej txheem ntxiv, uas cuam tshuam nrog kev tso cov txheej nyias ntawm tooj liab mus rau lub substrate los tsim cov qauv hauv Circuit Court.Cov txheej txheem ua kom zoo dua tus neeg xyuas pib thiab qhov sib tw nruj dua, ua rau nws tsim nyog rau cov kab hluav taws xob hloov tau yooj yim.

Hais txog kev ua tau zoo, kev xaiv ntawm FR4 thiab polyimide nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov.FR4 yog qhov zoo tagnrho rau cov ntawv thov uas nruj thiab lub zog txhua yam tseem ceeb, xws li cov khoom siv hluav taws xob hauv tsheb.Nws muaj thermal stability zoo thiab tuaj yeem tiv taus qhov kub thiab txias.Txawm li cas los xij, nws qhov kev txwv tsis pub yuav tsis haum rau cov ntawv thov uas yuav tsum tau khoov lossis folding, xws li cov khoom siv hnav.Polyimide, ntawm qhov tod tes, ua tau zoo hauv cov ntawv thov uas xav tau kev hloov pauv thiab ua haujlwm ntev.Nws muaj peev xwm tiv taus rov qab khoov ua rau nws zoo tagnrho rau cov ntawv thov cuam tshuam nrog kev txav mus los lossis kev co, xws li cov khoom siv kho mob thiab aerospace electronics.

Hauv cov ntsiab lus, qhov kev xaiv ntawm FR4 thiab polyimide cov ntaub ntawv nyob rau hauv lub voj voog hloov tau nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov.FR4 muaj lub zog txhua yam thiab ruaj khov, tab sis tsis yooj yim dua.Polyimide, ntawm qhov tod tes, muaj qhov ua tau zoo dua thiab ua haujlwm ntev tab sis tuaj yeem kim dua.Kev nkag siab txog qhov sib txawv ntawm cov ntaub ntawv no yog qhov tseem ceeb rau kev tsim thiab tsim cov khoom siv hluav taws xob hloov pauv uas ua tau raws li qhov yuav tsum tau ua thiab kev ua haujlwm.Txawm hais tias nws yog lub xov tooj smartphone, hnav lossis siv kho mob, xaiv cov ntaub ntawv zoo yog qhov tseem ceeb rau kev ua tiav ntawm kev hloov pauv hloov pauv.