Tushen abu na da'irar hukumar na electro-acoustic PCB factory kawai yana da tagulla tsare a bangarorin biyu, da kuma tsakiyar ne insulating Layer, don haka ba sa bukatar zama conductive tsakanin Biyu bangarorin ko Multi-Layer da'irori na kewaye hukumar?Ta yaya za a iya haɗa layukan da ke ɓangarorin biyu tare domin halin yanzu ya gudana cikin sauƙi? A ƙasa, da fatan za a duba electroacoustic PCB manufacturer don nazarin wannan tsari na sihiri a gare ku - jan ƙarfe sinking (PTH). Immersion jan ƙarfe shine taƙaitaccen Eletcroless Plating Copper, wanda kuma aka sani da Plated through Hole, wanda aka gajarta da PTH, wanda shine amsawar autocatalytic redox.Bayan an yi amfani da katako mai layi biyu ko multilayer, ana aiwatar da tsarin PTH. Matsayin PTH: A kan bangon bangon ramin da ba shi da motsi wanda aka haƙa, an ajiye wani ɗan ƙaramin sinadari na jan ƙarfe da sinadari don yin aiki a matsayin abin da za a yi amfani da wutar lantarki na jan ƙarfe na gaba. Bazuwar tsari na PTH: alkaline degreasing → sakandare ko na uku countercurrent rinsing → coarsening (micro-etching) → secondary countercurrent rinsing → presoak → kunnawa
PTH cikakken bayanin tsari: 1. Alkaline lalata: cire tabo mai, yatsa, oxides, da ƙura a cikin pores;daidaita bangon pore daga caji mara kyau zuwa caji mai kyau, wanda ya dace da tallan colloidal palladium a cikin tsari na gaba;tsaftacewa bayan lalatawa dole ne a bi ka'idodin aiwatar da gwajin tare da nutsewar hasken baya na jan karfe. 2. Micro-etching: cire oxides a kan jirgin saman, roughen da jirgin saman, da kuma tabbatar da kyau bonding karfi tsakanin m jan karfe immersion Layer da kasa jan karfe na substrate;sabon jan karfe yana da aiki mai ƙarfi kuma yana iya daɗaɗa colloid palladium; 3. Pre-dip: Yana da mahimmanci don kare tankin palladium daga gurɓataccen ruwan tanki na pretreatment da kuma tsawaita rayuwar sabis na tankin palladium.Babban abubuwan da aka gyara daidai suke da na tankin palladium banda palladium chloride, wanda zai iya jika bangon rami yadda ya kamata kuma ya sauƙaƙe kunna ruwa na gaba.Shigar da rami a cikin lokaci don isasshe kuma ingantaccen kunnawa; 4. Kunnawa: Bayan polarity daidaitawa na alkaline degreasing pretreatment, da gaskiya caje pore ganuwar iya yadda ya kamata sha isa barnatar da caje colloidal palladium barbashi don tabbatar da uniformity, ci gaba da compactness na m jan karfe hazo;Sabili da haka, ragewa da kunnawa suna da matukar muhimmanci ga ingancin ajiyar tagulla na gaba.Wuraren sarrafawa: ƙayyadaddun lokaci;daidaitaccen ion mai ƙarfi da haɓakar ion chloride;takamaiman nauyi, acidity da zafin jiki suma suna da mahimmanci, kuma dole ne a sarrafa su sosai bisa ga umarnin aiki. 5. Degumming: Cire ions masu banƙyama da aka lulluɓe a waje na ƙwayoyin palladium colloidal don fallasa ainihin palladium a cikin ƙwayoyin colloidal zuwa kai tsaye kuma yadda ya kamata ke haifar da yanayin hazo na jan ƙarfe.Kwarewa ya nuna cewa yana da kyau a yi amfani da acid fluoroboric a matsayin wakili na lalata.s Zabi. 6. Hazo na Copper: Rashin wutar lantarki na jan ƙarfe na hazo autocatalytic yana haifar da kunnawa na tsakiya na palladium.Za a iya amfani da sabon sinadari na jan ƙarfe da kuma abin da ya haifar da hydrogen a matsayin abin da zai iya haifar da haɓakar halayen, ta yadda yanayin hazo na jan ƙarfe ya ci gaba da ci gaba.Bayan sarrafa ta wannan mataki, za a iya sanya wani Layer na tagulla na tagulla a saman allo ko bangon ramin.A yayin aiwatar da aikin, ruwan wanka ya kamata a kiyaye shi ƙarƙashin tashin iska na yau da kullun don canza ƙarin jan ƙarfe mai narkewa.
Ingancin aikin nutsewar tagulla yana da alaƙa kai tsaye da ingancin allon kewayawa na samarwa.Shi ne babban tushen tsari na matalauta vias, bude da kuma gajere da'irori, kuma bai dace da gani dubawa.Za a iya tantance tsarin da ke gaba ta hanyar gwaje-gwaje masu lalata.Ingantacciyar nazari da lura da a allon PCB guda , don haka da zarar matsala ta faru, dole ne ya zama matsalar batch, ko da ba za a iya kammala gwajin ba, samfurin ƙarshe zai haifar da haɗari mai girma ga inganci, kuma za'a iya kwashe shi kawai a cikin batches, don haka dole ne a yi aiki sosai bisa ga umarnin. sigogi na umarnin aiki. 
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