Kev tsim cov txheej txheem ntawm tooj liab clad laminate (CCL) yog kom impregnate cov khoom siv ntxiv nrog cov organic resin thiab qhuav nws los ua prepreg.Ib qho dawb paug ua los ntawm ob peb prepregs laminated ua ke, ib los yog ob sab them nrog tooj liab ntawv ci, thiab ib lub phaj zoo li cov khoom tsim los ntawm kub nias.
Los ntawm tus nqi taw tes ntawm view, tooj liab clad laminates account rau txog 30% ntawm tag nrho cov PCB manufacturing.Cov ntaub ntawv tseem ceeb ntawm tooj liab clad laminates yog iav fiber ntau daim ntaub, ntoo pulp ntawv, tooj liab ntawv ci, epoxy resin thiab lwm yam ntaub ntawv.Ntawm lawv, tooj liab ntawv ci yog cov khoom siv tseem ceeb rau kev tsim tooj liab clad laminates., 80% ntawm cov khoom siv feem ntau suav nrog 30% (thin phaj) thiab 50% (thick phaj).
Qhov sib txawv ntawm kev ua tau zoo ntawm ntau hom tooj liab clad laminates feem ntau yog tshwm sim hauv qhov sib txawv ntawm cov khoom siv fiber ntau thiab cov resins uas lawv siv.Cov ntaub ntawv tseem ceeb uas yuav tsum tau ua rau PCB muaj xws li tooj liab clad laminate, prepreg, tooj liab ntawv ci, kub potassium cyanide, tooj liab pob thiab number case, thiab lwm yam. Copper clad laminate yog raw khoom tseem ceeb tshaj plaws.
Kev lag luam PCB loj hlob tsis tu ncua
Kev siv dav ntawm PCBs yuav txhawb nqa kev xav tau yav tom ntej rau cov xov paj hluav taws xob.Lub ntiaj teb no PCB tso zis tus nqi nyob rau hauv 2019 yog hais txog 65 billion US dollars, thiab Suav PCB lag luam kuj tseem ruaj khov.Hauv 2019, Suav PCB kev lag luam tso tawm tus nqi yog ze li 35 billion US dollars.Tuam Tshoj yog thaj av loj tshaj plaws hauv ntiaj teb, suav nrog ntau tshaj li ib nrab ntawm cov khoom tsim tawm thoob ntiaj teb, thiab yuav loj hlob ntxiv mus rau yav tom ntej.
Kev faib tawm hauv cheeb tsam ntawm lub ntiaj teb PCB tso tawm tus nqi.Qhov kev faib ua feem ntawm PCB cov nqi tsim tawm hauv Asmeskas, Europe, thiab Nyij Pooj hauv ntiaj teb tau poob qis, thaum cov txiaj ntsig ntawm PCB kev lag luam hauv lwm qhov chaw ntawm Asia (tshwj tsis yog Nyiv) tau nce sai.Ntawm lawv, kev faib ua feem ntawm Tuam Tshoj mainland tau nce sai heev.Nws yog lub ntiaj teb PCB kev lag luam.Qhov chaw ntawm kev hloov pauv.