He kanalua paha kāu, no ke aha i ʻoi aku ka maikaʻi o ka substrate alumini ma mua o FR-4?
ʻO ka pcb alumini ka hana hoʻoponopono maikaʻi, hiki ke anu a wela ke kuʻi, ʻoki, wili a me nā hana hana ʻē aʻe, e hana i nā ʻano like ʻole a me nā nui o ka papa kaapuni. ʻOi aku ka maʻalahi o ka papa kaapuni FR4 i ka haki ʻana, ka wehe ʻana a me nā pilikia ʻē aʻe, a paʻakikī ke hana. No laila, hoʻohana pinepine ʻia ka substrate alumini i nā huahana uila kiʻekiʻe, e like me ke kukui LED, nā uila uila, nā lako mana a me nā māla ʻē aʻe.
ʻOiaʻiʻo, loaʻa i ka alumini pcb kekahi mau hemahema. Ma muli o kāna substrate metala, ʻoi aku ka kiʻekiʻe o ke kumukūʻai o ka substrate aluminika, a ʻoi aku ka nui o ke kumukūʻai ma mua o FR4. Eia kekahi, no ka mea ʻaʻole maʻalahi ka hoʻopili ʻana o ka substrate alumini me nā pine o nā mea uila maʻamau, pono ka mālama kūikawā, e like me ka metallization, e hoʻonui ai i ke kumukūʻai hana. Eia kekahi, pono pū ka papa insulation o ka substrate alumini i ka mālama kūikawā e hōʻoia i ka hana hoʻoheheʻe wela me ka ʻole o ka hoʻopili ʻana i ka maikaʻi o ka hoʻouna ʻana i ka hōʻailona.
Ma waho aʻe o ka ʻokoʻa o ke kumukūʻai, aia kekahi mau ʻokoʻa ma waena o ka alumini pcb a me FR4 ma ke ʻano o ka hana a me ka laulā noi.
ʻO ka mea mua, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana o ka wela i ka substrate aluminika, hiki ke hoʻopau koke i ka wela i hana ʻia e ka papa kaapuni. ʻO kēia ka mea i kūpono loa i ka substrate alumini no ka mana kiʻekiʻe, kiʻekiʻe kiʻekiʻe-density kaapuni hoʻolālā, e like me nā kukui LED, nā modula mana, a me nā mea ʻē aʻe. hoʻolālā kaapuni.
ʻO ka lua, ʻoi aku ka nui o ka lawe ʻana o ka substrate alumini i kēia manawa, kūpono ia no ke alapine kiʻekiʻe a me nā noi kiʻekiʻe o kēia manawa. I ka hoʻolālā kaapuni kiʻekiʻe, e hoʻohua ka mea i kēia manawa i ka wela, a ʻo ka conductivity thermal kiʻekiʻe a me ka hana hoʻoheheʻe wela maikaʻi o ka substrate alumini hiki ke hoʻopau maikaʻi i ka wela, no laila e hōʻoiaʻiʻo ai i ka hilinaʻi a me ka paʻa o ke kaapuni. ʻOi aku ka liʻiliʻi o ka hiki ke halihali i kēia manawa o FR4 a ʻaʻole kūpono i nā hoʻolālā kaapuni kiʻekiʻe kiʻekiʻe.
Eia kekahi, ʻoi aku ka maikaʻi o ka hana seismic substrate aluminika ma mua o FR4, hiki ke pale aku i ka haʻalulu mechanical a me ka haʻalulu, no laila i ka automotive, kaʻaahi a me nā ʻano ʻē aʻe o ka hoʻolālā uila uila, ua hoʻohana nui ʻia ka substrate alumini. I ka manawa like, loaʻa i ka substrate alumina maikaʻi ka hana anti-electromagnetic interference, hiki ke pale pono i nā nalu electromagnetic a hōʻemi i ka hoʻopili kaapuni.
Ma keʻano laulā, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana o ka wela i ka alumini pcb, ka hiki ke lawe i kēia manawa, ka hana seismic a me ke kūʻē electromagnetic interference ma mua o FR4, a ua kūpono no ka hoʻolālā kaapuni kiʻekiʻe, kiʻekiʻe kiʻekiʻe a me nā alapine kiʻekiʻe. Ua kūpono ʻo FR4 no ka hoʻolālā kaapuni uila maʻamau, e like me nā kelepona paʻa, laptops a me nā huahana uila ʻē aʻe. ʻOi aku ka kiʻekiʻe o ke kumukūʻai o ka substrate aluminika, akā no ka hoʻolālā kaʻapuni kiʻekiʻe, ʻo ke koho ʻana o ka substrate alumini he mea nui loa.
I ka hōʻuluʻuluʻana, kūpono ka alumini pcb a me ka FR4 no nāʻano likeʻole o nā noi kaapuni a loaʻa iā lākou nā pono a me nā hemahema. Ke koho ʻana i nā mea papa kaapuni, pono ke kaupaona ʻana i nā mea like ʻole e like me nā hiʻohiʻona noi kikoʻī a me nā koi e koho i nā mea kūpono loa.
Ka manawa hoʻouna: Nov-30-2023
