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 kīwī kīwila, nā mea hoʻopaʻa wikiō, nā mea pāʻani CD, nā mea kope, kelepona, ea ea, kaʻa. mea uila, consoles game.

ʻOihana keleawe keleaweHiki 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 nā 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 aʻe i kēlā me kēia pae 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.