Nā pōmaikaʻi o ka substrate alumini PCB

a. ʻOi aku ka maikaʻi o ka hoʻopau ʻana i ka wela ma mua o ka hoʻolālā FR-4 maʻamau.

b. ʻO ka dielectric i hoʻohana maʻamau ʻo 5 a 10 mau manawa i ka conductivity thermal o ke aniani epoxy kuʻuna a me ka 1/10 ka mānoanoa.

c. ʻOi aku ka maikaʻi o ka papa kuhikuhi wela ma mua o ka PCB paʻa kuʻuna.

d. Hiki iā ʻoe ke hoʻohana i nā kaupaona keleawe haʻahaʻa ma mua o nā mea i hōʻike ʻia ma ka pakuhi IPC i ʻōlelo ʻia.

PCB ʻĀpana

Ke noi ʻana i ka PCB substrate alumini

1. Nā lako leo: nā mea hoʻokomo a me nā mea hoʻopuka, nā mea hoʻonui kaulike, nā mea kani leo, nā preamplifier, nā mana amplifiers, etc.

2. Nā lako lako mana: hoʻololi hoʻololi, DC / AC converter, SW regulator, etc.

3. Mea uila uila kamaʻilio: hoʻokiʻekiʻe kiʻekiʻe hoike kaapuni.

4. ʻO nā lako hana ʻoihana: nā kaʻa kaʻa, etc.

5. ʻO ke kaʻa: mea hoʻoponopono uila, mea puhi ahi, mana mana, etc.

6. Kamepiula: CPU papa `floppy disk drive’ mana lako, etc.

7. Power module: inverter “solid state relay” rectifier bridge, etc.

Hoʻohana nui ʻia nā substrate alumini. Ma nā lako leo maʻamau, nā lako mana, a me nā lako uila kamaʻilio, aia nā PCB substrate aluminika, nā lako automation keʻena, nā kaʻa, nā kamepiula a me nā modula mana.

ʻEkolu ʻokoʻa ma waena o ka papa fiberglass a me ka PCB substrate aluminika

H. Helu

ʻO nā mea koʻikoʻi o ka pahu fluorescent LED ʻo ia: ka papa kaapuni, LED chip a me ka lako mana hoʻokele. Hoʻokaʻawale ʻia nā papa kaapuni maʻamau i ʻelua ʻano: nā substrate aluminika a me nā papa fiberglass. Ke hoʻohālikelike nei i ke kumukūʻai o ka papa fiberglass a me ka substrate aluminika, e ʻoi aku ka liʻiliʻi o ke kumukūʻai o ka papa fiberglass, akā ʻoi aku ka maikaʻi o ka hana o ka papa fiberglass.

B. Nā ʻano ʻenehana

E like me nā mea like ʻole a me nā kaʻina hana, hiki ke hoʻokaʻawale ʻia nā papa fiberglass i ʻekolu mau ʻano: ʻelua ʻaoʻao keleawe ʻaoʻao fiberglass papa, perforated copper foil fiberglass papa, a me hoʻokahi ʻaoʻao copper foil fiberglass papa. ʻOiaʻiʻo, ʻokoʻa ke kumukūʻai o nā papa fiberglass i hana ʻia i nā mea like ʻole. ʻO nā kumukūʻai o nā paneli fiberglass i hana ʻia i nā mea like ʻole a me nā ʻenehana ʻokoʻa hoʻi. ʻAʻole maikaʻi ka hopena o ka hoʻoheheʻe ʻana i ka wela o LED fluorescent tube a me ke aniani fiber board e like me ka LED fluorescent tube i loko o ka substrate alumini.

C. Hana

E like me kā mākou e ʻike ai, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana o ka wela i ka alumini substrate, a ʻoi aku ka maikaʻi o kāna hana hoʻopau wela ma mua o ka papa fiberglass. No ka mea he maikaʻi ka wela o ka substrate alumini, he mea koʻikoʻi ka substrate alumini i ke kahua o nā kukui LED.