Pepa keleawehe haʻahaʻa haʻahaʻa o ka oxygen ili a hiki ke hoʻopili ʻia me nā ʻano substrate like ʻole, e like me ke metala, nā mea insulating.A hoʻohana nui ʻia ka foil keleawe i ka pale electromagnetic a me ka antistatic.No ke kau ʻana i ka pahu keleawe conductive ma ka ʻili o ka substrate a hui pū me ka substrate metala, e hāʻawi ia i ka hoʻomau maikaʻi a me ka pale electromagnetic.Hiki ke hoʻokaʻawale ʻia i loko o: ʻaoʻao keleawe paʻa ponoʻī, ʻaoʻao keleawe ʻaoʻao hoʻokahi, ʻaoʻao ʻelua ʻāpana keleawe a me nā mea like.

Ma keia pauku, ina oe e aʻo hou e pili ana i ke keleawe foil ma ka PCB hana kaʻina hana, e 'oluʻolu e nānā a heluhelu i ka maʻiʻo ma lalo o keia pauku no ka 'oihana ike.

He aha nā hiʻohiʻona o ke keleawe keleawe i ka hana PCB?

PCB keleawe pepaʻO ia ka mānoanoa keleawe mua i hoʻohana ʻia ma nā papa waho a me loko o kahi papa PCB multilayer.Ua wehewehe ʻia ke kaumaha keleawe e like me ke kaumaha (i nā auneke) o ke keleawe i loaʻa i hoʻokahi kapuaʻi huinahā o ka ʻāpana.Hōʻike kēia ʻāpana i ka mānoanoa holoʻokoʻa o ke keleawe ma ka papa.Hoʻohana ʻo MADPCB i nā kaupaona keleawe aʻe no ka hana PCB (pre-plate).Ana kaumaha ma oz/ft2.Hiki ke koho ʻia ke kaumaha keleawe kūpono e kūpono i ke koi hoʻolālā.

· Ma ka hana PCB, aia nā pahu keleawe i loko o nā ʻōwili, nā mea uila me ka maʻemaʻe o 99.7%, a me ka mānoanoa o 1 / 3oz / ft2 (12μm a i ʻole 0.47mil) - 2oz / ft2 (70μm a i ʻole 2.8mil).

· He haʻahaʻa haʻahaʻa ka nui o ka oxygen ili keleawe a hiki ke hoʻopili mua ʻia e nā mea hana laminate i nā kumu kumu like ʻole, e like me ke kumu metala, polyimide, FR-4, PTFE a me ka ceramic, e hana i nā laminates keleawe.

· Hiki ke hoʻokomo ʻia i loko o ka papa multilayer e like me ke keleawe ma mua o ke kaomi ʻana.

· I ka hana PCB maʻamau, ʻo ka mānoanoa keleawe hope loa ma nā ʻāpana o loko e koe o ka foil keleawe mua;Ma nā ʻaoʻao o waho e hoʻopaʻa mākou i ke keleawe he 18-30μm ma nā ala i ka wā o ke kaʻina hana panel.

· ʻO ke keleawe no nā papa waho o nā papa multilayer ma ke ʻano o ke keleawe keleawe a paʻi pū ʻia me nā prepregs a i ʻole cores.No ka hoʻohana ʻana me nā microvias ma HDI PCB, ua pololei ka pahu keleawe ma RCC (resin coated copper).

No ke aha e pono ai ke keleawe keleawe i ka hana PCB?

ʻO ka pahu keleawe uila uila (ka maʻemaʻe ma mua o 99.7%, ka mānoanoa 5um-105um) ʻo ia kekahi o nā mea kumu o ka ʻoihana uila ʻO ka hoʻomohala wikiwiki ʻana o ka ʻoihana ʻike uila, ke ulu nei ka hoʻohana ʻana i ka pahu keleawe uila uila, hoʻohana nui ʻia nā huahana. i nā helu helu ʻoihana, nā lako kamaʻilio, nā lako QA, nā pākahi lithium-ion, nā keʻena kīwila kīwila, nā mea hoʻopaʻa wikiō, nā mea pāʻani CD, nā kope kope, kelepona, air conditioning, uila uila, consoles pāʻani.

ʻImi keleawe ʻenehanaHiki ke hoʻokaʻawale ʻia i ʻelua ʻāpana: ʻōwili ʻia i ke keleawe keleawe (RA copper foil) a me ke kiko copper foil (ED copper foil), kahi o ka calendaring copper foil i ka ductility maikaʻi a me nā ʻano ʻē aʻe. ʻO ke kumu kūʻai haʻahaʻa o ka hana keleawe keleawe electrolytic.ʻOiai he mea koʻikoʻi ka ʻōpala keleawe ʻōwili o ka papa palupalu, no laila, ʻo nā ʻano o ka calendar copper foil a me nā hoʻololi kumukūʻai ma ka ʻoihana papa palupalu i kekahi hopena.

He aha nā lula hoʻolālā kumu o ka foil keleawe ma PCB?

Ua ʻike paha ʻoe he mea maʻamau nā papa kaapuni paʻi i loko o ka hui o ka uila?ʻIke loa au aia kekahi i loko o ka mea uila āu e hoʻohana nei i kēia manawa.Eia naʻe, ʻo ka hoʻohana ʻana i kēia mau mea uila me ka ʻole o ka hoʻomaopopo ʻana i kā lākou ʻenehana a me ke ʻano hana hoʻolālā he hana maʻamau.Ke hoʻohana nei nā kānaka i nā mea uila i kēlā me kēia hola akā ʻaʻole lākou i ʻike i kā lākou hana.No laila, eia kekahi mau ʻāpana nui o ka PCB i ʻōlelo ʻia e ʻike wikiwiki i ka hana ʻana o nā papa kaapuni paʻi.

· ʻO ka papa kaapuni i paʻi ʻia he mau papa plastik maʻalahi me ka hoʻohui ʻana i ke aniani.Hoʻohana ʻia ka foil keleawe no ka ʻimi ʻana i nā alahele a hiki iā ia ke kahe o nā uku a me nā hōʻailona i loko o ka hāmeʻa.ʻO ke ala keleawe ke ala e hāʻawi ai i ka mana i nā ʻāpana like ʻole o ka mea uila.Ma kahi o nā uea, alakaʻi nā ʻāpana keleawe i ke kahe o nā uku i nā PCB.

· Hiki i nā PCB ke hoʻokahi papa a ʻelua pū kekahi.Hoʻokahi papa PCB ka mea maʻalahi.Loaʻa iā lākou nā pahu keleawe ma kekahi ʻaoʻao a ʻo kekahi ʻaoʻao ka lumi no nā mea ʻē aʻe.ʻOiai ma ka PCB pālua ʻelua, mālama ʻia nā ʻaoʻao ʻelua no ka foiling keleawe.ʻO nā papa ʻelua ka PCB paʻakikī i loaʻa nā ʻano paʻakikī no ke kahe o nā uku.ʻAʻole hiki i nā pahu keleawe ke ʻaʻa kekahi i kekahi.Pono kēia mau PCB no nā mea uila kaumaha.

· Aia no hoi elua papa o solders a me ka silkscreen ma keleawe PCB.Hoʻohana ʻia kahi mask solder e ʻike i ke kala o ka PCB.Nui nā kala o nā PCB i loaʻa e like me ka ʻōmaʻomaʻo, ka poni, ka ʻulaʻula, a me nā mea ʻē aʻe. Hoʻomaopopo pū ʻo Solder mask i ke keleawe mai nā metala ʻē aʻe e hoʻomaopopo i ka paʻakikī pili.ʻOiai ʻo silkscreen ka ʻāpana kikokikona o ka PCB, ua kākau ʻia nā leka a me nā helu like ʻole ma ka silkscreen no ka mea hoʻohana a me ka ʻenekinia.

Pehea e koho ai i ka mea pono no ke keleawe foil ma PCB?

E like me ka mea i ʻōlelo ʻia ma mua, pono ʻoe e ʻike i ke ala ʻanuʻu no ka hoʻomaopopo ʻana i ke ʻano hana o ka papa kaapuni paʻi.He mau papa like ʻole ka hana ʻana o kēia mau papa.E hoʻomaopopo kākou i kēia me ke kaʻina:

Mea lepo:

ʻO ke kumu kumu ma luna o ka papa plastik i hoʻopaʻa ʻia me ke aniani ka substrate.ʻO kahi substrate kahi ʻano dielectric o kahi pepa i hana mau ʻia me nā resins epoxy a me ka pepa aniani.Hoʻolālā ʻia kahi substrate i hiki ke hoʻokō i ke koi no ka laʻana ka mahana hoʻololi (TG).

Lamination:

E like me ka maopopo o ka inoa, ʻo ka lamination kekahi ala e loaʻa ai nā waiwai e like me ka hoʻonui wela, ka ikaika shear, a me ka wela hoʻololi (TG).Hana ʻia ka lamination ma lalo o ke kaomi kiʻekiʻe.He kuleana koʻikoʻi ka lamination a me ka substrate i ke kahe ʻana o nā uku uila i ka PCB.