6 Layer FR4 Tg170 ENIG PCB

Bambanci tsakanin janar FR-4 da babban FR4-TG ya ta'allaka ne a cikin bambancin ƙarfin injin, mannewa, shayarwar ruwa, kwanciyar hankali mai girma, bazuwar yanayin zafi (musamman bayan shayar ruwa) ƙarƙashin yanayin zafi a ƙarƙashin yanayi daban-daban (kamar haɓakar thermal). ).Babu shakka, babban Tg PCB ya fi talakawa PCB substrate abu.Saboda haka, a cikin 'yan shekarun nan, akwai babban bukatar high Tg PCB, amma farashin ya fi girma PCB.