Ubukhulu obuqondile be-ENIG plating buvimbela ukugqwala kwephedi emnyama, bugcina ubuqotho bejoyinti le-solder, futhi busekela ukumelana okuncane kokuthintana. I-nickel ku-3–6 μm inikeza isithiyo sokusabalalisa esiqhubekayo samaphedi ethusi futhi igcina izindlela zikagesi, kuyilapho igolide elingu-0.05–0.15 μm livikela i-nickel ekungcolisweni kuze kube yilapho kwenzeka ukunamathelana. Ukuphambuka okungaphansi kwe-nickel engu-3 μm noma igolide elingu-0.05 μm kukhulisa kakhulu ukwehluleka kokuthintana kuma-PCB anobukhulu obuphezulu, acwebezelayo.
Ukulinganiswa Kobukhulu Bokugoba Ekwenziweni Kwe-PCB
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Ukubuka Konke Kwenqubo Yokusonga I-ENIG
Ukufakwa kwe-ENIG kuqala ngokufaka i-nickel engenagesi kuma-copper pads, kusetshenziswa ukusabela kwamakhemikhali ukudala ungqimba lwe-nickel-phosphorus olusatshalaliswe ngokulinganayo. Ubukhulu be-nickel buthinta ngqo amandla omshini kanye nokuqhuba kukagesi—amanani angaphandle kobubanzi be-2.5-7 μm andisa ukwehluleka kokuhlanganiswa futhi anciphise isikhathi sokuphila komkhiqizo. Isinyathelo segolide lokucwiliswa simboza i-nickel ngegolide elingu-0.05-0.23 μm ngokufuduka kwe-ionic, okuhlinzeka ngokumbozwa okungenamsebenzi kanye nesakhiwo esiqondile sezinhlamvu. Ukulawulwa kwesilinganiso se-nickel-phosphorus kunquma ikhwalithi yokuqeda, kuyilapho ubukhulu begolide obuhambisanayo buvimbela ukufuduka kwe-nickel futhi kunciphisa ingozi yokugqwala. Umhloli we-Lonnmeter LONN-T850 XRF ulinganisa ngokunembile zombili izendlalelo, okuvumela ukulawulwa kwekhwalithi ye-PCB plating eqinile kanye nokuhambisana nezindinganiso zobukhulu be-ENIG plating.
Iziqondiso Zokujiya kanye Nemigomo Yekhwalithi ye-ENIG
Ubukhulu be-nickel plating ye-ENIG kumele buhlale ngaphakathi kwama-2.5–7 μm ukuze kufezwe amazinga e-IPC-4552B, kanye nokuthembeka okuphezulu okufinyelelwe kusuka kuma-3.0–6.0 μm. Lolu hlu lwe-nickel luqinisekisa ukushintshwa okuqinile, isithiyo esizinzile sokusabalala kwethusi, kanye nokumelana nokugqwala okuphumelelayo emiklamo ye-PCB enobukhulu obuphezulu kanye neyendabuko. Igolide lokucwiliswa kufanele lilinganise ama-0.05–0.23 μm, lenze ngcono ukuvikelwa kwe-nickel ngenkathi livimbela amalunga e-solder aqhekekayo; uhla lwegolide oluvame kakhulu noluthembekile luyi-0.05–0.15 μm lokusetshenziswa ekukhiqizweni okukhulu.
Ukuphambuka kulezi zindinganiso zobukhulu beplati kwandisa ingozi yokukhubazeka. Izingqimba ze-nickel ezingaphansi kuka-2.5 μm zibangela ukugqwala okusheshayo, i-black pad, kanye namajoyinti e-solder abuthakathaka. I-nickel eningi ingaletha ukucindezeleka kwangaphakathi kodwa akuvamile ukuba yindawo yokwehluleka ngaphakathi kwemingcele ecacisiwe. Igolide elincane kune-0.05 μm livumela i-nickel oxidation, okuphazamisa impilo yeshelufu kanye nokukwazi ukunamathela. Igolide elingaphezu kuka-0.23 μm liholela ekumanziseni okubi, ekuqhekekeni kwegolide okuphezulu, kanye namajoyinti angathembekile ngenxa yokuqhekeka.
Ukulawula ukujiya kwe-ENIG okufanele kuvimbela ukufuduka kwe-nickel okuzenzakalelayo kube yigolide, kugcina ukumelana okuphezulu kokuthintana futhi kuvimbele ukwehluleka kokumelana okuncane. Isakhiwo sezinhlamvu esinembile kuzo zombili izendlalelo siqinisekisa ukuhanjiswa kwamandla kanye nokuphela kobuso okufanayo, okubalulekile ekumelaneni okuncane kokuthintana ezindaweni zesixhumi kanye ne-BGA. Abahlaziyi be-Lonnmeter XRF abasebenza ngokuzenzakalelayo banikeza ukulinganisa okuqondile kokubili izendlalelo ze-nickel negolide, besekela lezi ziqondiso zekhwalithi eziqinile kuzo zonke izikali zokukhiqiza ze-PCB.
Izinzuzo Eziyinhloko ze-ENIG zamaBhodi Esifunda Aphrintiwe
I-ENIG inikeza ukulingana okuphezulu, okuvumela ukubekwa kahle kwezingxenye eziqondile nezinobukhulu obuphezulu emabhodini wesekethe aphrintiwe. Igolide eliqinile lithuthukisa ukushintshwa kwe-soldering, likhuthaza ukuxhumana okuhambisanayo nokuncane. Izingqimba ze-nickel ezifanayo ngaphansi kwegolide zivimbela ukushintshwa kwe-oxidation kanye nokufuduka, ziqinisa ukumelana nokugqwala futhi zisekele imijikelezo eminingi yokushintshwa kwe-soldering. Ezifundweni ezilawulwayo, i-ENIG PCB iqeda kahle kakhulu kune-HASL ngokugcina ukumelana okuphansi kokuthintana kanye nokuqina okuthuthukisiwe ngaphansi komswakama ophezulu kanye nokucindezeleka kokushisa. Ekukhiqizweni kwe-elekthronikhi okuthuthukisiwe, ukuqeda kwe-ENIG kukhulisa ukuthembeka kobuchwepheshe bokufaka ubuso futhi kuvikela ekuwohlokeni kwemvelo.
Ukuthuthukisa Inqubo Yakho ye-PCB nge-LONN-T850 XRF Plating Thickness Tester
Izici Ezithuthukisiwe ze-LONN-T850 XRF Analyzer
Isihloli sobukhulu be-plating se-LONN-T850 XRF sikaLonnmeter sisebenzisa i-Silicon Drift Detector (SDD) enesinqumo esiphezulu ukuze silinganise ngokunembile izendlalelo ze-nickel-phosphorus kanye negolide ekukhiqizweni kwebhodi lesekethe eliphrintiwe le-PCB. Lesi sitholi sifinyelela ukunemba kobukhulu kuze kufike kuma-nanometer, okubalulekile ekuhlangabezaneni nezindinganiso zobukhulu be-plating ye-ENIG. Amasu okulinganisa e-XRF ahlanganiswe ku-LONN-T850 anikeza amazinga okudlula afanele imigqa yokukhiqiza ephezulu, esekela ukuhlaziywa kwe-batch kufika kumasampula angu-300 ngehora. Ukutholwa kwedatha okusheshayo kwenza impendulo yenqubo ngokushesha, kususe ukubambezeleka okuvamile ezindleleni ezibhubhisayo.
Ukuhlanganiswa Okungenamthungo Nokugeleza Komsebenzi Wokukhiqiza we-PCB
Izici zokubika ezizenzakalelayo ziqinisekisa ukulandelelwa kwe-PCB ngayinye elinganisiwe, zihambisana nezidingo zokulawula ikhwalithi ekwakhiweni nasekukhiqizweni kwebhodi lesifunda eliphrintiwe. I-interface elula ukuyisebenzisa, eyenzelwe isikhathi esincane sokuqeqeshwa, yenza kube lula ukwamukelwa ngokushesha ngabasebenzi abasha kanye nonjiniyela abanolwazi ngokufanayo. Yonke idatha yokulinganisa ingathunyelwa kwamanye amazwe ukuze kulawulwe inqubo yezibalo kanye nokubuyekezwa kokuhlolwa, okwenza kube lula ukuhambisana nemininingwane yenqubo yokufaka igolide engenagesi ye-nickel.
Ukuletha Ubuhle Ekulawuleni I-ENIG Plating
Ukuvimbela amaphutha okusebenzayo kufezwa ngokumaka ukuphambuka ngaphambi kokuhlanganiswa, kusekela ukulawulwa kwekhwalithi ye-PCB plating okuhle kakhulu. Amandla amaningi okuhlaziya ngesikhathi esisodwa avimbela ukufuduka kwe-nickel futhi aqinisekise amalunga e-solder aqinile, edlula izindlela zendabuko zokulinganisa ubukhulu bokuphela kobuso be-PCB. Amacala okusetshenziswa aqala ekusetshenzisweni kwegolide lokucwiliswa kwe-nickel elingena-electro ku-elekthronikhi kuya ekuqedweni kwe-ENIG vs. HASL PCB, okunikeza imiphumela ejwayelekile nethembekile yokukhiqiza ibhodi lesifunda eliphrintiwe.
Cela Isilinganiso se-LONN-T850 XRF Analyzer
Ithimba lezinsizakalo zobuchwepheshe laseLonnmeter lisiza ngeziphakamiso ezenziwe ngokwezifiso kanye nokusekelwa kwenqubo, lenza kube lula ukuthuthukiswa kwekhwalithi kanye nokuthuthukiswa kwesivuno kulo lonke i-nickel gold plating yamabhodi wesekethe. Ifomu lesicelo ledijithali livumela izixazululo ezenzelwe wena, okwenza kube lula inqubo yesilinganiso konjiniyela nabathengi.
Imibuzo Evame Ukubuzwa
Kuyini ukulinganisa ubukhulu be-plating futhi kungani kubalulekile ekuthembekeni kwe-PCB?
Ukulinganiswa kobukhulu beplati kulinganisa izendlalelo ze-nickel negolide ezindaweni ze-PCB. Ubukhulu obungaphandle kwebanga kubangela ukungashintshwa kahle kwe-solder, kuyingozi yokugqwala kwe-black pad, futhi kusheshise ukufuduka kwegolide.
Yibuphi ubukhulu obunconywayo bokufaka i-ENIG ekukhiqizweni kwe-PCB?
Iziqondiso zemboni zichaza i-nickel ku-2.5–7 μm kanye negolide ku-0.05–0.23 μm. Lezi zinhlobo zandisa ukuthembeka kwejoyinti le-solder, zivimbela ukugqwala kwe-nickel, futhi zivimbele ukufuduka kwegolide ngenkathi zinciphisa ukusetshenziswa kwegolide okungadingekile.
Isikhathi sokuthunyelwe: Mashi-19-2026
