Flexible Circuit Board Composition Khoom

1. Insulating zaj duab xis

Flexible Circuit Board

Cov zaj duab xis insulating tsim cov txheej txheej hauv Circuit Court, thiab cov nplaum nplaum ua cov ntawv ci tooj liab rau cov txheej insulating. Hauv ntau- txheej txheej tsim, nws raug khi rau hauv txheej sab hauv. Lawv kuj tseem siv los tiv thaiv kev tiv thaiv hluav taws xob los ntawm cov plua plav thiab dej noo, thiab kom txo tau kev ntxhov siab thaum lub sij hawm flexing, tooj liab ntawv ci tsim ib txheej conductive.

Hauv qee qhov hloov pauv tau, cov tswv cuab nruj tsim los ntawm txhuas lossis stainless hlau yog siv, uas tuaj yeem muab kev ruaj ntseg, kev txhawb nqa lub cev rau kev tso kawm ntawm cov khoom thiab cov xov hlau, thiab kev ntxhov siab. Cov nplaum nplaum ua rau cov tswvcuab nruj thiab hloov pauv hloov ua ke. Lwm cov khoom siv uas qee zaum siv rau hauv kev hloov pauv hloov pauv yog txheej nplaum, uas yog tsim los ntawm txheej txheej nplaum ntawm ob sab ntawm cov yeeb yaj kiab insulating. Adhesive plies muab kev tiv thaiv ib puag ncig thiab hluav taws xob rwb thaiv tsev, nrog rau kev muaj peev xwm tshem tawm ib zaj yeeb yaj kiab, nrog rau kev muaj peev xwm sib txuas ntau txheej nrog tsawg txheej.

Muaj ntau ntau hom ntaub ntawv insulating zaj duab xis, tab sis feem ntau siv yog polyimide thiab polyester cov ntaub ntawv. Ze li ntawm 80 feem pua ​​​​ntawm tag nrho cov chaw tsim hluav taws xob hloov pauv hauv Tebchaws Meskas siv cov ntaub ntawv polyimide, thiab li 20 feem pua ​​​​ntawm cov khoom siv polyester. Cov khoom siv polyimide tsis yog -flammable, geometrically ruaj khov, muaj lub zog tsim kua muag, thiab muaj peev xwm tiv taus qhov kub thiab txias. Polyester, tseem hu ua polyethylene bisphthalate (Polyethyleneterephthalate luv luv: PET) ), nws lub cev muaj zog zoo ib yam li polyimide, nws muaj qis dielectric tas li, absorbs me ntsis noo noo, tab sis tsis tiv taus kub. Polyesters muaj qhov melting point ntawm 250 degree thiab lub iav hloov pauv kub (Tg) ntawm 80 degree, uas txwv tsis pub lawv siv rau hauv cov ntawv thov uas yuav tsum muaj qhov kawg vuam. Nyob rau hauv tsawg kub daim ntaub ntawv, lawv pom rigidity. Txawm li cas los xij, lawv tsim nyog siv rau hauv cov khoom xws li xov tooj thiab lwm yam khoom uas tsis tas yuav raug rau qhov chaw hnyav. Polyimide insulating films feem ntau yog ua ke nrog polyimide los yog acrylic nplaum, thiab polyester insulating cov ntaub ntawv feem ntau yog ua ke nrog polyester adhesives. Ua ke nrog qhov zoo ntawm cov ntaub ntawv nrog cov khoom zoo ib yam, qhov kev ruaj ntseg tuaj yeem ua tiav tom qab vuam qhuav, lossis tom qab ntau lub voj voog lamination. Lwm yam khoom tseem ceeb hauv cov nplaum yog qis dua dielectric tas li, kev tiv thaiv kev tiv thaiv ntau dua, iav hloov pauv kub thiab tsis muaj dej noo.

2. Tus coj

Copper foil yog tsim rau siv nyob rau hauv hloov pauv hloov pauv, uas tuaj yeem ua electrodeposited (Electrodeposited luv luv: ED) lossis plated. Lub electrodeposited tooj liab ntawv ci muaj ib tug glossy nto ntawm ib sab, thaum lub tiav nto ntawm lwm sab yog npub. Nws yog cov khoom siv tau yooj yim uas tuaj yeem ua rau ntau qhov tuab thiab dav, thiab sab matte ntawm ED tooj liab ntawv ci feem ntau tshwj xeeb kho kom nws cov adhesion. Ntxiv nrog rau qhov yooj yim, wrought tooj liab ntawv ci kuj muaj cov yam ntxwv ntawm hardness thiab smoothness, uas yog haum rau daim ntaub ntawv uas yuav tsum tau dynamic deflection.

3. Adhesive

Ntxiv nrog rau kev siv los txuas cov yeeb yaj kiab insulating rau cov khoom siv hluav taws xob, cov nplaum kuj tuaj yeem siv los ua overlays, tiv thaiv txheej, thiab ua cov txheej txheej. Qhov sib txawv tseem ceeb ntawm ob yog daim ntawv thov siv, cov txheej txheem npog cov ntaub qhwv lub npog insulating zaj duab xis los tsim cov Circuit Court ntawm laminated siv. Cov txheej txheem kev tshuaj ntsuam luam ntawv siv rau txheej txheej txheej ntawm cov nplaum. Tsis yog tag nrho cov qauv laminate muaj cov nplaum, thiab cov laminates tsis muaj cov nplaum ua rau nyias nyias thiab yooj yim dua. Nws muaj thermal conductivity zoo dua li cov nplaum -raws li laminate. Vim tias cov qauv nyias nyias ntawm cov nplaum tsis muaj nplaum nplaum thiab txhim kho thermal conductivity vim kev tshem tawm cov thermal tsis kam ntawm cov nplaum, nws tuaj yeem siv rau hauv qhov chaw ua haujlwm uas cov flex Circuit Court raws li cov nplaum laminate tsis tuaj yeem siv. .