Ka walaʻauʻana manao o ka PCB ʻilikai lapaʻau mea e hōʻoia 'maikai weldability paha uila performance.Because ke keleawe maoli i loko o ka lewa, kūnihi e ia i loko o ka palapala o oxides, ia mea olelo lealea, e noho keleawe no ka lōʻihi manawa, no laila, ke keleawe ua pono ai no nā'āpana hana e .
1.Hot Air hoohaahaaia iho la (HAL / HASL)
Hot ea hoohaahaaia iho la, iʻikeʻia me wela ea solder hoohaahaaia iho la (mau ike me HAL / HASL), i ua kapa komo iā ia ma luna o ka PCB ili honua paio hahana maoli nō hoʻoheheʻeʻia ke tina solder (kēpau) a hoʻohana i'opihia ke ea i ka a pau (puupuu) enehana palahalaha, e kona ano i ahu iho la ka keleawe'okesaside ia'ku, a hiki i maikai weldability o ka ka penaʻana layer.The solder a me ke keleawe i hanaʻia i loko o ke ami hoi i hana i ka compound.The PCB e e bapetizoia i ka hoʻoheheʻeʻia solder i wela ea conditioning.The makani pahi flushes ke kinowai solder mua o ka solder solidifies.The makani pahi hiki loa kń ke anuenue o ka solder ma luna o ke keleaweʻili, a pale kuʻihao alahaka.
2.Organic Weldable? Aiiay paula (OSP)
OSP ua pai ia huakai kaapuni a ka papa (PCB) keleawe pepa kiniʻilikai hana maikaʻiʻole o ke ano keia ano o ka 'ike loea hou, e hālāwai me nā koi o RoHS directive.OSP mea he hua h ÷ ailona o ke aloha Solderability preservative. Ua ua iʻikeʻia e like me ka ke aloha soldering ho film, iʻikeʻia e like me ke keleawe pale, a iʻikeʻia me Preflux ma English.In ka nutshell, ka OSP mea he chemically Hoʻololi 'ahu iho la ka ke aloha ili ma luna o ka ili o ka maemae, hānau copper.This ho film ua Anati-'okesaside, thermal hawewe a me ona mau ia'ku, a hiki hoomalu i ke keleawe ili mai ka lepo ('okesaside ole vulcanization) ma maʻamau environment.But ma ka hope kuʻihao wela, i ka aiiay Auana a me ka pono e wehe 'ia ma ka koke koko wale, no laila, pono e e maemae ke keleawe ili o ka hōʻike mea i loko o ka loa pōkole wā o ka manawa me ka hoʻoheheʻeʻia solder koke lilo i paa solder ami.
3.Full Una nikala / Gold
Una nikala / Gold ua waihoʻoluʻu paʻa ma luna o ka ili o ka PCB , a laila waihoʻoluʻu paʻa me ke ahu iho o ke gula. Ke nikala plating meaʻano nui e pale aku i ka maholahune o ke gula, a copper.Now loaʻa nō nāʻano o ka electroplating nikala gula: pahee gula plating (i ke gula, i ke gula ili kiai ole olinolino) a me ka paakiki gula plating (ili ka malimali a me ka paakiki, e mae-ka pale aku , aia no iloko olaila na oihana mua e like me cobalt, gula nana hou malamalama) .Soft gula uaʻano nui hoʻohana no ka? inoaia'ōpala gula uea; ka paakiki gula uaʻano nui hoʻohana no ka uila interconnection i loko o ka politika-kuʻihao mau mea.
4.Immersion Gold
kaiapuni gula ua kapa komo iā ia me ka manoanoa, uila maikai nikala-gula oka a ma ke keleawe luna, i hiki hoomalu PCB no ka lōʻihi time.In hou, ka mea, i ka ioeeiiaiey o nāʻilikai lapaʻau technologies.In hou, e palemo ai i ke gula hiki i pale i ka noho male 'ana o ke keleawe, a e e pono ke alakai-ole i ua ahakanaka la.
5.Immersion ke tina
No ka mea, me ka nānā 'a pau solders ma ka piuta, o ka piuta, ahu iho ke Aʻohe kekahi' ano o solder.Tin kaʻina ma waena o lalo keleawe piuta i huiʻia hiki ke hana, i kēia hiʻona mea kaumaha piuta i e like wela ea hoohaahaaia iho la o ka maikai weldability, aʻaʻohe wela ea hoohaahaaia iho la flatness o headache pilikia; kaiapuni piuta hiki ole ke hūnā no ka lōʻihi, a pono e akoakoa mai e like me ke ano o ka maluhia iho la piuta.
6.Immersion kālā
ke kālā kaʻina mea ma waena o ke aloha ka penaʻana a me ka electroless nikala plating. Ke kaʻina Ua puni hoʻi, a fast.Even ka wā i hooleiiaʻi mawaho, e hoʻa'ā i, humidity a me ka haumia ea, ke kala ke malama maikai weldability akā, e lilo kona luster.The kālā 'aʻole i loaʻa ka physical ikaika maikai o ka Nine Inch plating nikala / e palemo ai ke gula, no ka mea, aohe nikala ma lalo o ke kālā, ahu iho.
7.ENEPIG (Electroless nikala Electroless Palladium kaiapuni Gold)
Ke hoʻohālikelike me ENEPIG a me ENIG, he mea he hou ahu iho la ka palladium ma waena o nikala a me ke gula. Ua pili loa uhiia Palladium ke pale aku i ka ka popopo kŰia, kena ae la ma ka hakahaka naoh, a e piha ko lakou hoomakaukau ana no ka puka gold.Gold me palladium, ina he mau 'maikai.
8.Plating Hard Gold
I mea e hoʻoikaika 'i ka waiwai Wear-ka pale aku ana i ka huina hoonui, hoomahuahua i ka hookomo helu a me ka plating ikaika gula.
