No ke aha mākou e hoʻohana ai iā FR4 ma ke ʻano he substrate no ka PCB?

2021-03-23

  I kēia mau lā, lilo ʻo PCB i ʻāpana koʻikoʻi o ka hapa nui o nā huahana uila. ʻO ke kaʻina hana o ka PCB ʻo ia ke koho ʻana i nā lua, electroplating copper a me nā hana ʻē aʻe ma luna o ka substrate ʻo ia ka laminate ʻaʻahu keleawe e loaʻa ai ke kiʻikuhi kaapuni pono. No laila, ʻo nā waiwai o ka copper clad laminate e hoʻoholo i ka maikaʻi o ka PCB. E like me ka laminate ʻaʻahu keleawe i loaʻa i ke keleawe a me kahi substrate e loaʻa i ʻekolu mau hana: conduction, insulation a me ke kākoʻo, FR4 pepa ua lilo i mea kūpono no nā laminates keleawe.

FR4 pepaʻO

  ʻO ka wehewehe ʻana o fr4 mai ka NEMA (National Electrical Manufactures Association) a ʻo FR ke kū nei no ka pale ahi. ʻO FR4 Laminate Sheet kahi mea pale ahi i hana ʻia me ka epoxy resin a me ka lole fiberglass ma lalo o ke kiʻekiʻe kiʻekiʻe a me ke kaomi kiʻekiʻe. Hoʻohana nui ʻia ia i ka PCB ma ke ʻano he substrate no ka mea he nui nā waiwai maikaʻi e like me ka ikaika kiʻekiʻe, ka pale ahi, ke kūpaʻa kemika, ʻaʻohe wai absorption a me ka insulation. ʻO ka mea kūikawā, hiki i ka pale wai o FR4 ke ʻae i ka PCB e hoʻohana ʻia i kahi ʻano haʻahaʻa loa.

FR4 pepaʻO

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