Flexible Printed Circuit Court yooj yim
Flexible Printed Circuit Court yooj yim, Nws tuaj yeem khoov, mob thiab quav dawb. Lub rooj tsavxwm hloov tau yooj yim yog ua tiav los ntawm kev siv zaj duab xis polyimide ua cov khoom siv hauv paus. Nws tseem hu ua soft board lossis FPC hauv kev lag luam. Cov txheej txheem khiav ntawm lub rooj tsavxwm hloov tau yooj yim tau muab faib ua ob tog kev hloov pauv hauv Circuit Court board txheej txheem, ntau txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej. FPC soft board tuaj yeem tiv taus ntau lab ntawm dynamic dabtsi yog khoov yam tsis muaj kev puas tsuaj rau cov xov hlau. Nws tuaj yeem teem caij arbitrarily raws li qhov yuav tsum tau muaj ntawm qhov chaw layout, thiab tuaj yeem txav mus thiab ncab arbitrarily hauv qhov chaw peb sab, thiaj li ua tiav kev sib koom ua ke ntawm cov khoom sib dhos thiab kev sib txuas ntawm cov hlau; Lub rooj tsav xwm hloov tau yooj yim tuaj yeem ua tau Qhov loj thiab qhov hnyav ntawm cov khoom siv hluav taws xob tau txo qis, thiab nws yog qhov tsim nyog rau kev tsim cov khoom siv hluav taws xob hauv cov kev taw qhia ntawm high density, miniaturization thiab kev ntseeg siab.
Cov qauv ntawm cov boards hloov tau: raws li tus naj npawb ntawm cov txheej txheem ntawm cov ntawv ci tooj liab, nws tuaj yeem muab faib ua ib txheej boards, ob-txheej boards, ntau txheej boards, ob-sided boards, thiab lwm yam.
Cov khoom siv thiab cov txheej txheem xaiv:
(1) Substrate: Cov khoom siv yog polyimide (POLYMIDE), uas yog kub resistant, siab zog polymer khoom. Nws tuaj yeem tiv taus qhov kub ntawm 400 degrees Celsius rau 10 vib nas this, thiab lub zog tensile yog 15,000-30,000PSI. 25μm tuab substrates yog qhov pheej yig tshaj plaws thiab feem ntau siv dav. Yog tias lub rooj tsav xwm hauv Circuit Court yuav tsum tau ua kom nyuaj, yuav tsum siv lub substrate ntawm 50 μm. Hloov pauv, yog tias lub rooj tsav xwm hauv Circuit Court yuav tsum softer, siv 13μm substrate
(2) Pob tshab kua nplaum rau cov khoom siv hauv paus: Nws tau muab faib ua ob hom: epoxy resin thiab polyethylene, ob qho tib si yog thermosetting kua nplaum. Lub zog ntawm polyethylene yog qhov tsawg. Yog tias koj xav kom lub rooj tsav xwm hauv Circuit Court yog mos, xaiv polyethylene. Lub thicker lub substrate thiab cov kua nplaum ntshiab ntawm nws, lub rooj tsavxwm stiffer. Yog tias lub rooj tsav xwm hauv Circuit Court muaj qhov loj me me, koj yuav tsum sim siv cov txheej nyias nyias thiab cov kua nplaum pob tshab kom txo tau qhov kev ntxhov siab ntawm cov ntawv ci tooj liab, yog li ntawd lub sij hawm ntawm micro-cracks nyob rau hauv daim ntawv tooj liab yog me me. Ntawm chav kawm, rau cov cheeb tsam xws li, ib txheej boards yuav tsum tau siv ntau li ntau tau.
(3) Copper foil: muab faib ua tooj liab thiab electrolytic tooj liab. Rolled tooj liab muaj lub zog siab thiab tiv taus kev khoov, tab sis nws kim dua. Electrolytic tooj liab yog pheej yig dua, tab sis nws lub zog tsis zoo thiab nws yooj yim tawg. Nws yog feem ntau siv nyob rau hauv lub sij hawm uas muaj me ntsis dabtsi yog khoov. Qhov kev xaiv ntawm tooj liab ntawv ci thickness nyob ntawm qhov tsawg kawg nkaus qhov dav thiab qhov tsawg kawg nkaus qhov sib txawv ntawm cov hlau lead. Qhov nyias nyias ntawm cov ntawv ci tooj liab, qhov me me qhov tsawg kawg nkaus ua tiav qhov dav thiab qhov sib txawv. Thaum xaiv dov tooj liab, xyuam xim rau cov kev taw qhia dov ntawm cov ntawv ci tooj liab. Cov kev taw qhia dov ntawm cov ntawv ci tooj liab yuav tsum ua raws li lub ntsiab bending kev taw qhia ntawm lub rooj tsav xwm Circuit Court.
(4) Cov yeeb yaj kiab tiv thaiv thiab nws cov kua nplaum pob tshab: Cov yeeb yaj kiab tiv thaiv ntawm 25 μm yuav ua rau lub rooj tsav xwm hauv Circuit Court nyuaj, tab sis tus nqi pheej yig dua. Rau Circuit Court boards nrog cov khoov loj, nws yog qhov zoo tshaj plaws los siv 13μm tiv thaiv zaj duab xis. Cov kua nplaum pob tshab kuj tau muab faib ua ob hom: epoxy resin thiab polyethylene. Lub Circuit Court board siv epoxy resin yog ib qho nyuaj. Tom qab qhov kub nias tiav lawm, qee cov kua nplaum pob tshab yuav raug extruded los ntawm ntug ntawm cov yeeb yaj kiab tiv thaiv. Yog tias qhov loj ntawm lub ncoo loj dua qhov qhib qhov loj ntawm cov yeeb yaj kiab tiv thaiv, cov kua nplaum extruded yuav txo qhov loj ntawm lub ncoo thiab ua rau nws cov ntug tsis sib xws. Lub sijhawm no, sim siv cov kua nplaum pob tshab nrog lub thickness ntawm 13 μm.
(5) Pad plating: Rau Circuit Court boards nrog cov khoov loj thiab qee cov ntaub thaiv npog, electroplating npib tsib xee + tshuaj kub plating yuav tsum tau siv, thiab cov nickel txheej yuav tsum nyias li sai tau: 0.5-2μm, tshuaj kub txheej 0.05-0.1 μm .