6 Layer FR4 Tg170 ENIG PCB

ʻO ka ʻokoʻa ma waena o ka FR-4 maʻamau a me ka FR4-TG kiʻekiʻe aia i ka ʻokoʻa o ka ikaika mechanical, adhesion, absorption wai, dimensional stability, thermal decomposition o ke kūlana wela (ʻoi loa ma hope o ka hoʻopili ʻana o ka wai) ma lalo o ke kūlana wela ma lalo o nā kūlana like ʻole (e like me ka hoʻonui ʻana i ka wela. ).ʻIke loa, ʻoi aku ka maikaʻi o ka PCB kiʻekiʻe ma mua o nā mea substrate PCB maʻamau.No laila, i nā makahiki i hala iho nei, he koi nui no ka PCB Tg kiʻekiʻe, akā ʻoi aku ka kiʻekiʻe o ke kumukūʻai ma mua o PCB maʻamau.