HDI PCB Yin --- Immersion Zinariya saman jiyya
ENIG yana nufin Electroless Nickel / Immersion Gold, wanda kuma ake kira sinadarai Ni/Au, amfani da shi ya zama sananne a yanzu saboda lissafin ka'idojin da ba su da gubar da kuma dacewa da yanayin ƙirar PCB na yanzu na HDI da filaye masu kyau tsakanin BGAs da SMTs. .
ENIG wani tsari ne na sinadarai wanda ke baje kolin jan karfe da aka fallasa tare da nickel da Zinariya, don haka ya ƙunshi nau'i biyu na murfin ƙarfe, 0.05-0.125 µm (2-5μ inci) na nutsewa Zinare (Au) sama da 3-6 µm (120- 240μ inci) na nickel (Ni) mara amfani da wutar lantarki kamar yadda aka bayar a cikin ma'anar al'ada.A yayin aiwatar da aikin, ana ajiye nickel akan filayen tagulla-palladium-catalyzed, sannan kuma zinare na manne da yankin da aka yi da nickel ta hanyar musayar kwayoyin halitta.Rufin nickel yana kare jan ƙarfe daga oxidation kuma yana aiki azaman farfajiya don taron PCB, kuma yana da shinge don hana jan ƙarfe da zinare daga ƙaura zuwa juna, kuma Layer Au na bakin ciki sosai yana kare Layer nickel har sai tsarin siyarwa kuma yana ba da ƙasa kaɗan. juriya na lamba da jika mai kyau.Wannan kauri ya kasance mai daidaituwa a cikin allon wayar da aka buga.Haɗin kai yana ƙara haɓaka juriya ga lalata da kuma samar da kyakkyawan wuri don sanya SMT.
Tsarin ya ƙunshi matakai masu zuwa:
1) Tsaftacewa.
2) Micro-etching.
3) Pre-dipping.
4) Aiwatar da activator.
5) Bayan tsomawa.
6) Yin amfani da nickel maras amfani.
7) Yin amfani da zinare na nutsewa.
Ana amfani da zinare na nutsewa bayan an shafa abin rufe fuska, amma a wasu lokuta, ana shafa shi kafin aiwatar da abin rufe fuska.Babu shakka, wannan zai fi girma farashin idan duk jan ƙarfe yana da zinari kuma ba kawai abin da aka fallasa bayan abin rufe fuska ba.
Hoton da ke sama yana nuna bambanci tsakanin ENIG da sauran abubuwan da aka gama na zinare.
A fasaha, ENIG shine ingantaccen mafita mara gubar ga PCBs tun da tsarin tsarin sa na musamman da kamanni, musamman ga HDI PCB tare da VFP, SMD da BGA.An fi son ENIG a cikin yanayin da ake buƙatar juriya mai ƙarfi don abubuwan PCB kamar ramukan da aka ɗora da fasaha mai dacewa da latsawa.ENIG ya dace kuma don siyar da haɗin waya (Al).Ana ba da shawarar ENIG mai ƙarfi don buƙatun allunan da suka haɗa da nau'ikan siyarwa saboda yana dacewa da hanyoyin haɗuwa daban-daban kamar SMT, kwakwalwan kwamfuta, soldering ta hanyar rami, haɗin waya, da fasaha mai dacewa.Ni/Au maras amfani da wutar lantarki yana tsaye tare da zagayowar yanayin zafi da yawa da kuma sarrafa ɓarna.
ENIG yayi tsada fiye da HASL, OSP, Azurfa Immersion da Tin Immersion.Baki pad ko Baƙar fata pad na faruwa wani lokaci yayin aiwatarwa inda tarin phosphorous tsakanin yadudduka ke haifar da kuskuren haɗin gwiwa da fashewar saman.Wani downside tasowa ne maras so Magnetic Properties.
Ribobi:
- Flat Surface-Madalla don Taro mai kyau (BGA, QFP…)
- Samun kyakkyawan solderability
- Long Shelf Life (kimanin watanni 12)
- Kyakkyawan juriya na lamba
- Mafi kyau ga PCBs na jan karfe mai kauri
- An fi so don PTH
- Yana da kyau ga kwakwalwan kwamfuta
- Dace da Press-fit
- Waya mai ɗaurewa (Lokacin da Aka Yi Amfani da Wayar Aluminum)
- Kyakkyawan halayen lantarki
- Kyakkyawan zubar da zafi
Fursunoni:
- Mai tsada
- Black phosphorus pad
- Tsangwama na Electromagnetic, Babban Asarar Sigina a babban mitoci
- Ba a iya Sake Aiki
- Bai Dace da Tambayoyin Tuntuɓi ba
Mafi yawan amfani:
- Haɗaɗɗen abubuwan haɗin saman kamar Ball Grid Arrays (BGAs), Fakitin Flat Quad (QFPs).
- PCBs tare da Fasahar Fakitin Mixed, press-fit, PTH, haɗin waya.
- PCBs tare da haɗin waya.
- Babban amintattun aikace-aikace, misali PCBs a cikin masana'antu inda daidaito da dorewa ke da mahimmanci, kamar sararin samaniya, soja, likita da manyan masu amfani.
A matsayin jagorar PCB da PCBA mafita na samar da fiye da shekaru 15 gwaninta, PCB ShinTech ne m don samar da kowane irin PCB hukumar ƙirƙira tare da m surface gama.Za mu iya yin aiki tare da ku don haɓaka ENIG, HASL, OSP da sauran allunan da'ira waɗanda aka keɓance da takamaiman buƙatun ku.Mun ƙunshi PCBs masu fafatuka masu tsada na ƙarfe core/aluminum da m, m, m, m, kuma tare da daidaitattun FR-4 abu, high TG ko wasu kayan.
Bayazuwa Blogs
Lokacin aikawa: Janairu-28-2023
