Zinthu m'munsi mwa bolodi dera la electro-amayimbidwe PCB fakitale yekha ndi mkuwa zojambulazo mbali zonse, ndi pakati ndi insulating wosanjikiza, kotero iwo safuna kukhala conductive pakati Pawiri mbali kapena maulendo angapo osanjikiza za board board?Kodi mizere ya mbali zonse ziwiri ingalumikizidwe bwanji kuti madzi aziyenda bwino? Pansipa, chonde onani electroacoustic Wopanga PCB kusanthula zamatsenga izi kwa inu - mkuwa kumira (PTH). Kumizidwa mkuwa ndi chidule cha Eletcroless Plating Copper, chomwe chimadziwikanso kuti Plated Through Hole, chidule cha PTH, chomwe ndi autocatalytic redox reaction.Pambuyo pobowola gulu la magawo awiri kapena angapo, ndondomeko ya PTH ikuchitika. Udindo wa PTH: Pagawo la khoma lopanda ma conductive lomwe labowoledwa, mkuwa wowonda kwambiri umayikidwa ndi mankhwala kuti ukhale ngati gawo lapansi la electroplating yamkuwa. Kuwola kwa PTH: kuwola kwa alkaline → kutsukidwa kwachiwiri kapena kusukulu kopitilira muyeso → kukokera (kukokera pang'ono) → kutsuka kwachiwiri → kulowetsedwa → kuyambitsanso → kutsuka kwachiwiri → kutsuka → kutsuka kwachiwiri → kuthirira kwa mkuwa
Kufotokozera mwatsatanetsatane ndondomeko ya PTH: 1. Kuwotcha kwa alkaline: chotsani madontho amafuta, zidindo za zala, ma oxides, ndi fumbi mu pores;sinthani khoma la pore kuchoka pamtengo woyipa kupita ku mtengo wabwino, womwe ndi wosavuta kutsatsa kwa colloidal palladium munjira yotsatira;kuyeretsa pambuyo degreasing ayenera mosamalitsa kutsatira malangizo Chitani mayeso ndi kumizidwa mkuwa backlight mayeso. 2. Micro-etching: chotsani ma oxides pamwamba pa bolodi, khwimitsani gululo pamwamba, ndikuonetsetsa kuti mumalumikizana bwino pakati pa wosanjikiza womiza wamkuwa wotsatira ndi mkuwa wapansi wa gawo lapansi;latsopano mkuwa pamwamba ntchito amphamvu ndipo akhoza bwino adsorb colloids palladium; 3. Pre-dip: Ndiko makamaka kuteteza thanki ya palladium ku kuipitsidwa kwamadzi a tank yokonzekera ndikutalikitsa moyo wautumiki wa thanki ya palladium.Zigawo zazikulu ndi zofanana ndi za thanki ya palladium kupatula palladium kolorayidi, yomwe imatha kunyowetsa khoma la dzenje ndikuthandizira kuyambitsanso kwamadzimadzi.Lowani dzenje mu nthawi yokwanira komanso yogwira ntchito; 4. kutsegula: Pambuyo kusintha polarity wa zamchere degreasing pretreatment, ndi zabwino mlandu pore makoma angathe kuyamwa mokwanira zoipa mlandu colloidal palladium particles kuonetsetsa yunifolomu, kupitiriza ndi compactness wa wotsatira mkuwa mpweya;Chifukwa chake, kutsitsa ndi kuyambitsa ndikofunikira kwambiri pamtundu wotsatira wamkuwa.Mfundo zowongolera: nthawi yodziwika;muyezo stannous ion ndi chloride ion ndende;mphamvu yokoka yeniyeni, acidity ndi kutentha ndizofunikira kwambiri, ndipo ziyenera kuyendetsedwa mosamalitsa malinga ndi malangizo ogwiritsira ntchito. 5. Degumming: kuchotsa ayoni stannous TACHIMATA kunja kwa colloidal palladium particles kuvumbula palladium pachimake mu colloidal particles mwachindunji ndi mogwira catalyze mankhwala mkuwa mpweya anachita.Zochitika zikuwonetsa kuti ndibwino kugwiritsa ntchito fluoroboric acid ngati degumming agent.s Kusankha. 6. Mvula yamkuwa: The electroless copper precipitation autocatalytic reaction imayambitsidwa ndi kutsegula kwa palladium nucleus.Mankhwala omwe angopangidwa kumene mkuwa ndi zomwe amachokera ku haidrojeni angagwiritsidwe ntchito ngati chothandizira kuti chiwongolere zomwe zimachitika, kuti mpweya wa mkuwa upitirire mosalekeza.Pambuyo pokonza ndondomekoyi, mkuwa wa mankhwala ukhoza kuikidwa pa bolodi kapena khoma la dzenje.Pa ndondomeko, ndi kusamba madzi ayenera kukhala pansi yachibadwa mpweya mukubwadamuka kutembenuza zambiri sungunuka bivalent mkuwa.
Ubwino wa kumiza mkuwa umagwirizana mwachindunji ndi khalidwe la bolodi la dera lopanga.Ndi gwero lalikulu ndondomeko osauka vias, lotseguka ndi lalifupi madera, ndipo si yabwino kuyendera zithunzi.Njira yotsatila ikhoza kuyang'aniridwa ndi mayesero owononga.Kusanthula ndi kuyang'anira koyenera a bolodi limodzi la PCB , kotero pakangochitika vuto, liyenera kukhala vuto la batch, ngakhale mayeso sangathe kumaliza, chomalizacho chimayambitsa zoopsa zobisika pamtundu, ndipo zitha kuchotsedwa m'magulu, kotero ziyenera kuyendetsedwa mosamalitsa molingana ndi magawo a malangizo ogwiritsira ntchito. 
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