ENIG PCB: Nā mea ʻokoʻa i hoʻohālikelike ʻia me nā PCB ʻē aʻe

Ua holomua nui ka honua o ka uila i nā makahiki i hala iho nei, a ma hope o kēlā me kēia mea kupanaha uila aia kahi papa kaapuni paʻi (PCB). ʻO kēia mau mea liʻiliʻi akā koʻikoʻi ka iwi kuamoʻo o kēlā me kēia mea uila. Loaʻa nā ʻano like ʻole o nā PCB i nā koi like ʻole, hoʻokahi ʻano ʻo ENIG PCB.Ma kēia blog, e ʻimi mākou i nā kikoʻī o ka ENIG PCB, e hōʻike ana i kona mau hiʻohiʻona, hoʻohana a me kona ʻokoʻa mai nā ʻano PCB ʻē aʻe.

1.He aha ka PCB gula immersion?

Ma ʻaneʻi e hāʻawi mākou i kahi nānā hohonu i nā ENIG PCB, me kā lākou mau mea, ke kūkulu ʻana, a me ke kaʻina gula immersion nickel electroless i hoʻohana ʻia no ka hana ʻana. E hoʻomaopopo pono ka poʻe heluhelu i nā hiʻohiʻona kūʻokoʻa e kū ai nā ENIG PCB.

ʻO ENIG ka pōkole o ka electroless nickel immersion gold plating, kahi ʻano hana lapaʻau maʻamau i hoʻohana ʻia i ka hana PCB.Hāʻawi ia i ka hopena hilinaʻi a me ke kumu kūʻai e hōʻoia i ka lōʻihi a me ka hana o nā mea uila. Hoʻohana nui ʻia nā PCB ENIG i nā ʻoihana e like me ke kelepona, aerospace, nā mea uila uila, a me nā mea lapaʻau.

Hana ʻia nā PCB ENIG i ʻekolu mau mea nui: nickel, gula, a me kahi papa pale.Hana ʻia ka papa pale me kahi ʻāpana lahilahi o ka nickel electroless i waiho ʻia ma luna o nā ʻāpana keleawe a me nā pā o ka PCB. Ke hana nei kēia ʻāpana nickel ma ke ʻano he pale diffusion, e pale ana i ke keleawe mai ka neʻe ʻana i loko o ka papa gula i ka wā o ka waiho gula. Ma hope o ka hoʻopili ʻana i ka papa nickel, waiho ʻia kahi ʻāpana gula ma luna. Hāʻawi ka papa gula i ka conductivity maikaʻi loa, ka lōʻihi a me ka pale ʻana i ka corrosion. Hāʻawi ia i kahi pae o ka pale i ka oxidation, e hōʻoia ana i ka hana PCB lōʻihi a me ka hilinaʻi.
ʻO ke kaʻina hana o ENIG PCB e pili ana i kekahi mau ʻanuʻu. ʻO ka mua, mālama ʻia ka PCB a hoʻomaʻemaʻe ʻia e wehe i nā mea haumia a me nā oxides mai ka ʻili keleawe. Hoʻokomo ʻia ka PCB i loko o kahi ʻauʻau nickel plating electroless, kahi e waiho ai kahi hopena kemika i kahi papa nickel ma luna o nā ʻāpana keleawe a me nā pā. Ma hope o ka waiho ʻana o ka nickel, holoi a hoʻomaʻemaʻe hou i ka PCB e wehe i nā koena kemika. ʻO ka hope, hoʻokomo ʻia ka PCB i loko o kahi ʻauʻau gula a ua uhi ʻia kahi ʻāpana gula ma ka ʻili nickel ma o ka neʻe ʻana. Hiki ke ʻokoʻa ka mānoanoa o ka papa gula ma muli o ka noi kikoʻī a me nā koi. Hāʻawi ʻo ENIG PCB i nā pono he nui ma mua o nā lāʻau lapaʻau ʻē aʻe. ʻO kekahi o nā pōmaikaʻi nui, ʻo ia ka pālahalaha a me ke ʻano like ʻole, e hōʻoiaʻiʻo ana i ka solderability maikaʻi loa a kūpono ia no nā kaʻina hana hui Surface Mount Technology (SMT). Kūleʻa loa nā ʻili gula i ka oxidation, e kōkua ana i ka mālama ʻana i nā pilina uila hilinaʻi i ka manawa.
ʻO kekahi pōmaikaʻi ʻē aʻe o ENIG PCB ʻo ia ka hiki ke hāʻawi i nā hui solder paʻa a paʻa.ʻO ka palahalaha a me ka maʻemaʻe o ka papa gula e hoʻoikaika i ka pulu maikaʻi a me ka hoʻopili ʻana i ka wā o ke kaʻina kūʻai, e hopena i kahi hui solder ikaika a hilinaʻi.
ʻIke ʻia nā PCB ENIG no kā lākou hana uila maikaʻi a me ka hōʻailona hōʻailona.Hana ʻia ka papa nickel ma ke ʻano he pale, e pale ana i ke keleawe mai ka laha ʻana i ka papa gula a mālama i nā waiwai uila o ke kaapuni. Ma ka ʻaoʻao ʻē aʻe, he haʻahaʻa haʻahaʻa haʻahaʻa ka pae gula a me ka conductivity uila maikaʻi loa, e hōʻoiaʻiʻo ana i ka lawe ʻana i ka hōʻailona.

2. Pono o ENIG PCB

Maanei mākou e ʻimi ai i nā pono o nā PCB ENIG e like me ka solderability kiʻekiʻe, ka lōʻihi, ka pale ʻana i ka corrosion a me ka conductivity uila. ʻO kēia mau mea maikaʻi e kūpono i ka ENIG PCB no kahi ākea o nā noi

Hāʻawi ʻo ENIG PCB a i ʻole Electroless Nickel Immersion Gold PCB i nā mea maikaʻi ma mua o nā lāʻau lapaʻau ʻē aʻe, e kūpono ia no kahi ākea o nā noi i ka ʻoihana uila. E noʻonoʻo kākou i kekahi o kēia mau mea pono.
ʻOi loa ka solderability:
Loaʻa i nā ENIG PCBs maikaʻi loa ka solderability, e hoʻolilo iā lākou i mea kūpono no nā kaʻina hana hui Surface Mount Technology (SMT). ʻO ka papa gula ma luna o ka pale nickel e hāʻawi i kahi pālahalaha a kūlike, e hāpai ana i ka pulu maikaʻi a me ka hoʻopili ʻana i ka wā e kūʻai aku ai. ʻO kēia ka hopena i kahi hui solder ikaika a hilinaʻi, e hōʻoiaʻiʻo ana i ka pono holoʻokoʻa a me ka hana o ka hui PCB.
Ka lōʻihi:
ʻIke ʻia nā PCB ENIG no ko lākou lōʻihi a me ka lōʻihi. Ke hana nei ka papa gula ma ke ʻano he pale pale, e hāʻawi ana i kahi degere o ka pale ʻana i ka oxidation a me ka corrosion. ʻO kēia ka mea e hiki ai i ka PCB ke kū i nā kūlana kūlohelohe koʻikoʻi, me ka haʻahaʻa kiʻekiʻe, nā loli wela a me ka ʻike ʻana i nā kemika. ʻO ka lōʻihi o ka ENIG PCB ʻo ia hoʻi ka hilinaʻi nui aʻe a me ke ola lōʻihi, e kūpono iā lākou no nā noi e koi ana i ka hana lōʻihi.
Paʻa ʻino:
Hoʻokumu ka papa nickel electroless ma ENIG PCB i kahi pale ma waena o nā ʻāpana keleawe a me ka papa gula. Mālama kēia pale i ke keleawe mai ka neʻe ʻana i ke gula i ka wā e waiho ai ke gula. No laila, hōʻike ʻo ENIG PCB i ke kūpaʻa corrosion maikaʻi loa ma nā wahi corrosive. He mea kūpono kēia no nā noi kahi e ʻike ʻia ai nā PCB i ka makū, nā mea kemika a i ʻole nā ​​​​mea ʻino ʻē aʻe.
ka lawe ʻana:
ʻO ENIG PCB ka mahalo nui i kona ʻāpana gula. ʻO ke gula kahi mea hoʻokele uila maikaʻi loa a hiki ke hoʻouna i nā hōʻailona ma nā PCB. ʻO ka ʻili gula like ʻole e hōʻoiaʻiʻo i ke kūpaʻa haʻahaʻa haʻahaʻa, e hōʻemi ana i ka nalowale a i ʻole ka hōʻemi ʻana i ka hōʻailona. Hana kēia i ka ENIG PCB i kūpono no nā noi e koi ana i ka hoʻouna ʻana i nā hōʻailona kiʻekiʻe a me ke alapine kiʻekiʻe, e like me ke kelepona, aerospace a me nā mea uila uila.
Palahalaha o ka Ili:
ʻO nā ENIG PCB he papa pālahalaha a kūlike, he mea koʻikoʻi no ke kaʻina hana hoʻopaʻa paʻa a hilinaʻi. Mālama ka ʻili palahalaha i ka hāʻawi ʻana i ka paʻi solder i ka paʻi ʻana i ka stencil, a laila e hoʻomaikaʻi ai i ka maikaʻi hui pū. Hoʻomaʻamaʻa pū ia i ka hoʻokomo pololei ʻana i nā ʻāpana mauna o luna, e hōʻemi ana i ka pilikia o ka misalignment a i ʻole nā ​​​​kaapuni pōkole. Hoʻonui ka palahalaha ʻili o ENIG PCB i ka hana holoʻokoʻa holoʻokoʻa a me nā hopena i nā hui PCB kiʻekiʻe.
Hoʻolike hoʻopaʻa uea:
Hiki pū nā ENIG PCB me ke kaʻina hana hoʻopaʻa uea, kahi i hoʻopaʻa ʻia ai nā uea palupalu i ka PCB e hana i nā pilina uila. Hāʻawi ka papa gula i kahi ʻili kūpono no ka hoʻopaʻa ʻana i ka uea, e hōʻoia ana i kahi paʻa uea ikaika a hilinaʻi. Hana kēia i nā ENIG PCB i koho maikaʻi loa no nā noi e koi ana i ka hoʻopaʻa ʻana i ka uea, e like me microelectronics, automotive electronics a me nā mea lapaʻau.
Hoʻokō RoHS:
ʻO nā PCB ENIG he mea aloha kaiapuni a hoʻokō i ke kuhikuhi Restriction of Hazardous Substances (RoHS). ʻAʻole pili ke kaʻina hana hoʻoheheʻe ENIG i nā mea ʻino, e lilo ia i mea palekana a ʻoi aku ka maikaʻi o ke kaiapuni i nā lāʻau lapaʻau ʻē aʻe i loaʻa nā mea ʻona.

3.ENIG PCB me nā ʻano ʻē aʻe o ka PCB

ʻO ka hoʻohālikelike piha ʻana me nā ʻano PCB maʻamau e like me FR-4, OSP, HASL a me Immersion Silver PCB e hōʻike i nā ʻano kūʻokoʻa, nā pono a me nā hemahema o kēlā me kēia PCB.

FR-4 PCB:ʻO FR-4 (Flame Retardant 4) he mea hoʻohana nui ʻia PCB substrate. He epoxy resin i hoʻoikaika ʻia me nā pulu aniani i ulana ʻia a ʻike ʻia no kāna mau waiwai insulating uila maikaʻi. Loaʻa iā FR-4 PCB nā hiʻohiʻona aʻe:
pono:
ʻO ka ikaika mechanical maikaʻi a me ka rigidity
ʻOi aku ka maikaʻi o ka pale uila
Kūʻai kūpono a loaʻa ākea
hemahema:
ʻAʻole kūpono no nā noi alapine kiʻekiʻe ma muli o ka poho dielectric kiʻekiʻe
Hoʻopili wela wela
Hoʻopili maʻalahi i ka makū i ka manawa, e hoʻololi i ka impedance a me ka hōʻailona hōʻailona

Ma nā noi e koi ana i ka hoʻouna ʻana i ka hōʻailona kiʻekiʻe, ʻoi aku ka maikaʻi o ka ENIG PCB ma mua o FR-4 PCB no ka mea hāʻawi ʻo ENIG i ka hana uila ʻoi aku ka maikaʻi a me ka nalowale haʻahaʻa.

OSP PCB:ʻO ka OSP (Organic Solderability Preservative) kahi lāʻau lapaʻau i hoʻohana ʻia i nā PCB e pale i nā ʻāpana keleawe mai ka oxidation. Loaʻa iā OSP PCB nā hiʻohiʻona aʻe:
pono:
Pili kaiapuni a me RoHS
ʻO ke kumu kūʻai haʻahaʻa ma mua o nā lāʻau lapaʻau ʻē aʻe
Maikaʻi no ka maʻalahi a me ka palahalaha
hemahema:
Haʻahaʻa haʻahaʻa ola; hoʻohaʻahaʻa ka papa pale i ka manawa
Kāohi palena ʻole i ka makū a me nā wahi ʻino
Palena wela palena

Ke koʻikoʻi ka pale ʻana i ka corrosion, ka lōʻihi a me ke ola lawelawe lōʻihi, ʻoi aku ka maikaʻi o ENIG PCB ma mua o OSP PCB ma muli o ka ENIG ʻoi aku ka maikaʻi o ka oxidation a me ka pale corrosion.

Pīpī ʻia PCB:ʻO ka HASL (Hot Air Solder Leveling) kahi ʻano hana lapaʻau ma kahi o ka
Hoʻokomo ʻia ʻo PCB i loko o ka solder hoʻoheheʻe ʻia a laila pae ʻia me ka ea wela. Loaʻa iā HASL PCB nā hiʻohiʻona aʻe:
pono:Kūʻai kūpono a loaʻa ākea
Maikaʻi solderability a me ka coplanarity
He kūpono no nā ʻāpana hole
hemahema:
ʻAʻole kūlike ka ʻili a aia nā pilikia coplanarity
ʻAʻole kūpono paha nā uhi mānoanoa me nā ʻāpana pitch maikaʻi
Hiki i ka ha'alulu wela a me ka oxidation i ka wā e ho'iho'i hou ana

ʻOi aku ka maikaʻi o nā PCB ENIG ma mua o nā PCB HASL no nā noi e koi ana i ka solderability maikaʻi loa, nā ʻaoʻao palahalaha, coplanarity ʻoi aku ka maikaʻi, a me ka hoʻohālikelike ʻana me nā ʻāpana maikaʻi.

ʻO ka PCB kala kala ʻia:ʻO ke kālā Immersion he ʻano hana lapaʻau ʻili kahi e hoʻoheheʻe ʻia ai ka PCB i loko o kahi ʻauʻau kālā, e hana ana i kahi ʻāpana kālā lahilahi ma luna o nā ʻāpana keleawe. He mau hiʻohiʻona ka Immersion Silver PCB:
pono:
ʻOi aku ka maikaʻi o ka uila a me ka solderability
ʻO ka palahalaha maikaʻi a me ka coplanarity
Kūpono no nā ʻāpana pitch maikaʻi
hemahema:
Liʻiliʻi ke ola o ka mālama ʻana ma muli o ke ʻano o ka wā
Paʻa i ka lawelawe ʻana a me ka hoʻohaumia ʻana i ka wā e hui ai
ʻAʻole kūpono no nā noi wela kiʻekiʻe

Ke koi ʻia ka lōʻihi, ka pale ʻana i ka corrosion a me ka lōʻihi o ke ola ʻana, ʻoi aku ka maikaʻi o ka ENIG PCB ma mua o ka PCB kālā immersion no ka mea ʻoi aku ka nui o ke kūʻē ʻana o ENIG i ka ʻili a me ka hoʻopili maikaʻi ʻana me nā noi wela kiʻekiʻe.

4.Application o ENIG PCB

ENIG PCB (ʻo ia hoʻi ʻo Electroless Nickel Immersion Gold PCB) ua hoʻohana nui ʻia i nā ʻoihana like ʻole ma muli o kona mau pono like ʻole ma luna o nā ʻano PCB ʻē aʻe. , a me ka ʻenehana ʻenehana.

Nā huahana uila uila:
He kuleana koʻikoʻi nā ENIG PCB i nā mea uila uila kahi i koʻikoʻi ai ka nui compact, ka wikiwiki kiʻekiʻe a me ka hilinaʻi. Hoʻohana ʻia lākou i nā smartphones, papa, laptops, console game, a me nā mea uila ʻē aʻe. ʻO ka maikaʻi o ka conductivity a me ka poho hoʻokomo haʻahaʻa o ENIG he mea kūpono ia no nā noi alapine kiʻekiʻe, e hiki ai i ka wikiwiki o ka hoʻololi ʻana i ka ʻikepili, ka pololei o ka hōʻailona, ​​​​a me ka hoʻohaʻahaʻa electromagnetic interference. Eia kekahi, hāʻawi nā ENIG PCB i ka solderability maikaʻi, he mea koʻikoʻi i ka wā o ka hui ʻana o nā mea uila paʻakikī.
Aerospace a me ka pale:
He koʻikoʻi ko ka aerospace a me ka ʻoihana pale no nā ʻōnaehana uila ma muli o nā kūlana hana paʻakikī, nā wela wela a me nā kūlana hilinaʻi kiʻekiʻe. Hoʻohana nui ʻia nā PCB ENIG i nā avionics, nā ʻōnaehana satellite, nā mea radar a me nā mea uila pūʻali koa. ʻO ke kūpaʻa kūʻokoʻa a me ka paʻa o ENIG i kūpono no ka lōʻihi o ke ola lawelawe ma nā wahi paʻakikī. Eia kekahi, ʻo kona mānoanoa like ʻole a me ka palahalaha e hōʻoia i ka hana mau a me ka hilinaʻi.
Lapaʻau lapaʻau:
I ka lāʻau lapaʻau, hoʻohana ʻia nā ENIG PCB i kahi ākea o nā noi, me nā ʻōnaehana nānā maʻi, nā lako diagnostic, nā mea kiʻi kiʻi, nā mea hana a me nā mea implantable. ʻO ka biocompatibility a me ka corrosion resistance o ENIG he mea kūpono ia no nā lāʻau lapaʻau e pili ana me nā wai kino a i ʻole ke kaʻina hana sterilization. Eia kekahi, hiki i ka ENIG ka ʻili a me ka solderability i ka pilina pololei a me ka hui ʻana o nā ʻāpana uila paʻakikī i nā mea lapaʻau. 'oihana 'akomi:
Hoʻohana nui ʻia nā PCB ENIG i nā ʻōnaehana automation ʻoihana, me nā ʻōnaehana kaʻina hana, robotics, kaʻa kaʻa, nā lako mana, a me nā mea ʻike. ʻO ka hilinaʻi a me ke kūpaʻa o ENIG he koho maikaʻi loa ia no nā noi ʻoihana e koi ana i ka hana mau a me ke kūʻē ʻana i nā kaiapuni paʻakikī. ʻO ka solderability maikaʻi loa o ENIG e hōʻoia i nā pilina hilinaʻi i nā mana kiʻekiʻe a me nā noi wela kiʻekiʻe, e hāʻawi ana i ka lōʻihi a me ka paʻa pono no nā ʻōnaehana automation ʻoihana.
Hoʻohui ʻia, hoʻohana ʻia nā ENIG PCB i nā ʻoihana ʻē aʻe e like me ka automotive, telecommunications, ikehu, a me nā mea IoT (Internet of Things).Hoʻohana ka ʻoihana kaʻa i nā ENIG PCB i nā uila uila, nā ʻāpana hoʻokele engine, nā ʻōnaehana palekana a me nā ʻōnaehana leʻaleʻa. Ke hilinaʻi nei nā pūnaewele Telecom i nā PCB ENIG e kūkulu i nā kahua kahua, nā mea ala, nā hoʻololi a me nā lako kamaʻilio. I ka ʻāpana ikehu, hoʻohana ʻia nā ENIG PCB i ka hana mana, nā ʻōnaehana hoʻoili a me nā ʻōnaehana ikehu hou. Hoʻohui hou, ʻo ENIG PCB he ʻāpana koʻikoʻi o nā mea IoT, e hoʻopili ana i nā ʻano mea like ʻole a hiki ke hoʻololi i ka ʻikepili a me ka automation.

5.ENIG PCB Manufacturing a me Design noonoo

I ka hoʻolālā ʻana a me ka hana ʻana i nā ENIG PCB, aia kekahi mau mea koʻikoʻi e noʻonoʻo e hōʻoia i ka hana maikaʻi loa a me ka hilinaʻi. Eia kekahi mau alakaʻi hoʻolālā koʻikoʻi a me nā kaʻina hana e pili ana i nā PCB ENIG:

Hoʻolālā papa:
ʻO ka hoʻolālā pad o ka ENIG PCB he mea koʻikoʻi e hōʻoia i ke kūʻai pono ʻana a me ka hilinaʻi pili. Pono e hoʻolālā ʻia nā pā me nā ana kūpono, me ka laula, ka lōʻihi, a me ka spacing, e hoʻokomo i nā alakaʻi a me ka paʻi solder. Pono e ma'ema'e a ma'ema'e ka ho'opau 'ana o ka papa i mea e hiki ai ke ho'oma'ema'e pono i ka wā o ke ka'ina kū'ai.
Ka laula a me ka hakahaka:
Pono ka laula a me ka spacing i nā kūlana ʻoihana a me nā koi kikoʻī PCB. ʻO ka hōʻoia ʻana i nā ana kūpono hiki ke pale i nā pilikia e like me ka hoʻopili ʻana i ka hōʻailona, ​​nā pōkole pōkole, a me ka paʻa ʻole o ka uila.
ʻO ka mānoanoa o ka papa a me ke kūlike:
Aia ka ENIG PCB i kahi papa o ka nickel electroless a me kahi papa gula i hoʻopaʻa ʻia. Pono e hoʻomalu ʻia ka mānoanoa Plating i loko o nā tolerances kikoʻī e hōʻoia i ka uhi like ʻana o ka ʻili PCB holoʻokoʻa. He mea koʻikoʻi ka mānoanoa paʻa like ʻole no ka hana uila mau a me nā hui solder hilinaʻi.
Hoʻohana ʻana i ka mask solder:
He mea koʻikoʻi ka hoʻohana pono ʻana i ka mask solder i ka pale ʻana i nā ʻāpana PCB a me ka pale ʻana i nā alahaka solder. Pono e hoʻopili pono ʻia ka mask solder no ka hōʻoia ʻana e loaʻa i ka pad i hōʻike ʻia ka wehe ʻana o ka solder mask no nā ʻāpana kūʻai.
Hoʻolālā Kikokikona Solder Paste:
Ke hoʻohana ʻia ka ʻenehana mauna luna (SMT) no ka hui ʻana, hoʻohana ʻia nā stencils paʻi solder e waiho pololei i ka paʻi solder ma nā pā PCB. Pono ka hoʻolālā stencil me ka hoʻolālā pad a ʻae i ka waiho pololei ʻana o ka solder paste e hōʻoia i ka hoʻokumu ʻia ʻana o ka hui solder kūpono i ka wā reflow.
Ka Mana Mana Mana:
I ka wā o ke kaʻina hana, he mea nui e hana i nā loiloi mana maikaʻi e hōʻoia i ka ENIG PCB e hoʻokō i nā kikoʻī i koi ʻia. Hiki i kēia mau nānā ke komo i ka nānā ʻike maka, ka hoʻāʻo uila a me ka loiloi hui solder. Kōkua ka nānā ʻana i ka maikaʻi e ʻike i nā pilikia i ka wā o ke kaʻina hana a hōʻoia i ka hoʻokō ʻana o ka PCB i nā kūlana i koi ʻia.
Hoʻohālikelike hui:
He mea nui e noʻonoʻo i ka hoʻohālikelike ʻana o ka hoʻopau ʻana o ENIG me nā kaʻina hana hui like ʻole. Pono nā ʻano solderability a me reflow o ENIG me ke kaʻina hana hui kūikawā i hoʻohana ʻia. Hoʻopili kēia i nā noʻonoʻo e like me ke koho ʻana i ka solder paste, reflow profile optimization, a me ka hoʻohālikelike ʻana me nā kaʻina hana hoʻoheheʻe alakaʻi ʻole (inā pili).
Ma ka hahai ʻana i kēia mau alakaʻi hoʻolālā a me nā kaʻina hana no ENIG PCBs, hiki i nā mea hana ke hōʻoia e hoʻokō ka huahana hope i ka hana pono a me nā kūlana hilinaʻi. He mea nui e hana pū me nā mea hana PCB a me nā hoa hui e hoʻokō i nā koi kikoʻī a hōʻoia i ka holomua o ka hana ʻana a me ke kaʻina hana.

6.ENIG PCB FAQ

He aha ka ENIG PCB? He aha ke ʻano o ia mea?
ʻO ENIG PCB ke kū nei no ka Papa Kaapuni Paʻi ʻia ʻo Electroless Nickel Immersion Gold. He lapaʻau maʻamau ia ma nā PCB a hāʻawi i ke kūpaʻa corrosion, palahalaha a me ka solderability maikaʻi.

He aha nā pōmaikaʻi o ka hoʻohana ʻana i ka ENIG PCB?
Hāʻawi nā ENIG PCB i nā pono he nui, me ka solderability maikaʻi loa, ka conductivity uila kiʻekiʻe a me ke kūpaʻa corrosion. Hāʻawi ka hoʻopau gula i kahi papa o ka pale, e kūpono ana i nā noi kahi e koʻikoʻi ai ka hilinaʻi.

He pipiʻi anei ka ENIG PCB?
ʻOi aku ke kumukūʻai o nā ENIG PCB ma mua o nā lāʻau lapaʻau ʻē aʻe. ʻO ke kumu kūʻai ʻē aʻe ma muli o ke gula i hoʻohana ʻia i ke kaʻina ʻana. Eia nō naʻe, ʻo nā mea maikaʻi a me ka hilinaʻi i hāʻawi ʻia e ENIG e lilo ia i koho mua no nā noi he nui, e hōʻoiaʻiʻo ana i kona kumukūʻai kiʻekiʻe iki.

Aia kekahi mau kapu i ka hoʻohana ʻana i ka ENIG PCB?
ʻOiai he nui nā pono o ENIG PCB, loaʻa iā lākou kekahi mau palena. No ka laʻana, hiki ke komo maʻalahi nā ʻili gula inā hoʻokau ʻia i ke koʻikoʻi mechanical a ʻaʻahu paha. Eia hou, ʻaʻole kūpono paha ʻo ENIG no nā noi me nā koi wela kiʻekiʻe a i ʻole kahi i hoʻohana ʻia ai kekahi mau mea kemika koʻikoʻi.

He maʻalahi anei ka ENIG PCB e kūʻai?
ʻAe, loaʻa nui nā ENIG PCB mai nā mea hana PCB a me nā mea hoʻolako. He mau koho hoʻopau maʻamau lākou a hiki ke maʻalahi ʻia e kūpono i nā koi papahana like ʻole. Manaʻo ʻia e nānā i ka loaʻa a me nā manawa hoʻouna me ka mea hana a mea hoʻolako kikoʻī.

Hiki iaʻu ke hana hou a hoʻoponopono paha i ka ENIG PCB?
ʻAe, hiki ke hana hou ʻia nā PCB ENIG. Eia nō naʻe, pono paha ka hana hou a me ka hoʻoponopono ʻana no ENIG i nā noʻonoʻo kūikawā a me nā ʻenehana i hoʻohālikelike ʻia me nā lāʻau lapaʻau ʻē aʻe. Manaʻo ʻia e nīnau i kahi loea PCB rework akamai e hōʻoia i ka mālama pono ʻana a pale i ka hoʻohālikelike ʻana i ka pono o ka ʻili gula.

Hiki ke hoʻohana ʻia ka ENIG no ke kūʻai ʻana i ke alakaʻi a me ke alakaʻi ʻole?
ʻAe, hiki ke hoʻohana ʻia ka ENIG me nā kaʻina hana hoʻoheheʻe alakaʻi a alakaʻi ʻole. Eia nō naʻe, he mea koʻikoʻi ia e hōʻoia i ka hoʻohālikelike ʻana me ka paʻi solder kikoʻī a me ka ʻaoʻao reflow i hoʻohana ʻia. I mea e hoʻokō ai i nā hui solder hilinaʻi i ka wā o ka hui ʻana, pono e hoʻopaʻa pono ʻia nā ʻāpana wili.

ʻO ke kaʻina hana ENIG he hopena hilinaʻi a kūpono hoʻi no nā mea hana a me nā mea leʻaleʻa uila. ʻO ka hui pū ʻana o kahi pale nickel lahilahi, waiho like ʻole a me ka papa luna gula e hāʻawi i kahi hoʻopau maikaʻi loa e hōʻoia i ka lōʻihi a me ka hana o nā mea uila. Inā ma ke kelepona, aerospace a i ʻole nā ​​​​mea uila uila, hoʻomau ka ENIG PCB i ka hana koʻikoʻi i ka holomua ʻana i ka ʻenehana a me ka hoʻolālā ʻana i ka wā e hiki mai ana o ka uila.