HASLyog ib qho tseem ceeb tshaj plaws thiab tus nqi -PCB nto tiav. Nws cuam tshuam nrog cov coated tooj liab pads nrog molten solder thiab leveling saum npoo siv cua kub. HASL muab qhov zoo tshaj plaws solderability thiab haum rau tus qauv los ntawm - qhov thiab nto- mount cov rooj sib txoos. Txawm li cas los xij, qhov chaw tiaj tus yog qhov tsis sib xws, ua rau nws tsis zoo rau kev nplua -pitch Cheebtsam xws li BGA lossis QFN pob.
ENIGyog dav siv nyob rau hauv siab - ceev thiab siab - kev ntseeg siab PCBA daim ntaub ntawv. Qhov kev ua tiav no muaj cov txheej npib tsib xee npog los ntawm txheej nyias ntawm immersion kub, muab qhov zoo tshaj plaws flatness, oxidation tsis kam, thiab ntev txee lub neej. ENIG yog qhov tshwj xeeb tshaj yog tsim nyog rau kev ntim cov thev naus laus zis thiab cov khoom siv lead ua - cov txheej txheem soldering dawb, txawm hais tias nws los ntawm tus nqi siab dua thiab yuav tsum tau ua tib zoo tswj xyuas kom tsis txhob muaj teeb meem xws li cov ntaub qhwv dub.
ENEPIGtsim raws li ENIG los ntawm kev ntxiv ib txheej palladium ntawm npib tsib xee thiab kub. Cov txheej ntxiv no txhim kho corrosion kuj thiab tshem tawm qhov kev pheej hmoo ntawm cov ntaub qhwv dub. ENEPIG tseem txhawb nqa kev sib txuas ntawm cov xov hlau, ua rau nws zoo tagnrho rau cov khoom siv hluav taws xob hauv tsheb, cov khoom siv kho mob, thiab siab -kawg cov ntawv thov kev lag luam uas yuav tsum muaj kev ntseeg tau zoo dua.
Xaiv qhov tsim nyog saum npoo ua kom ntseeg tau qhov zoo ntawm cov khoom zoo, txhim kho kev tsim tawm, thiab ntev -PCBA kev ntseeg tau.
