amakuru

Hafi ya byosePCBs hamwe nuburyo bubiri cyangwa ibyiciro byinshi ukoreshe ushyizwe mu mwobo (PTH) kugirango uhuze abayobora hagati yimbere yimbere cyangwa hanze, cyangwa gufata ibice biyobora insinga.Kugirango ubigereho, inzira nziza ihujwe irakenewe kugirango ikigezweho kinyuze mu mwobo.Nyamara, mbere yuburyo bwo gufata amasahani, binyuze mu mwobo ntabwo bitwara kubera imbaho ​​zicapye zicapuwe zigizwe nibikoresho bitayobora ibintu (epoxy-ikirahure, fenolike-impapuro, polyester-ikirahure, nibindi).Kugirango habeho kubyara neza nubwo inzira yumwobo, microne zigera kuri 25 (mil 1 cyangwa 0.001 muri.) Z'umuringa cyangwa nyinshi zerekanwe nuwashushanyaga imbaho ​​zumuzenguruko zirasabwa gushyirwaho amashanyarazi kuri rukuta rwumwobo kugirango habeho guhuza bihagije.

Mbere yo gusya umuringa wa electrolytique, intambwe yambere ni ugukata umuringa wa chimique, nanone bita umuringa utagira amashanyarazi, kugirango ubone urwego rwambere rwitwara kurukuta rwibyobo byanditseho insinga.Autocatalytic oxyde-kugabanya reaction ibaho hejuru yubutaka butayobora substrate binyuze mumyobo.Ku rukuta, ikote rito cyane ry'umuringa rifite uburebure bwa micrometero 1-3.Intego yacyo ni ugukora ubuso bwumwobo buhagije kugirango yemererwe kwiyubaka hamwe numuringa wabitswe na electrolytique mubyimbye byagenwe nuwashizeho ikibaho.Usibye umuringa, dushobora gukoresha palladium, grafite, polymer, nibindi nkabayobora.Ariko umuringa nuburyo bwiza kubateza imbere ibikoresho bya elegitoronike mugihe gisanzwe.

Nkuko imbonerahamwe ya IPC-2221A 4.2 ibivuga ko umubyimba ntarengwa wumuringa ukoreshwa nuburyo bwo guteramo umuringa utagira amashanyarazi ku nkuta za PTH kugirango ugereranye umuringa ni 0,79 mil ku cyiciro Ⅰ na Class Ⅱ na 0,98 mil kuriicyiciroⅢ.

Umurongo wimiti wumuringa ucungwa neza na mudasobwa kandi panne ikorwa binyuze murukurikirane rwimiti nogeswa na crane yo hejuru.Ubwa mbere, paneli ya pcb yabanje kuvurwa, ikuraho ibisigisigi byose mu gucukura no gutanga ububi buhebuje hamwe na electro nziza yo gushira imiti y'umuringa.Intambwe yingenzi ninzira ya permanganate desmear yimyobo.Mugihe cyo kuvura, urwego ruto rwa epoxy resin rushyirwa kure yuruhande rwimbere rwimbere ninkuta zumwobo, kugirango byemeze.Noneho inkuta zose zomwogejwe mubwiherero bukora kugirango zibibwe na micro-uduce twa palladium mubwogero bukora.Kwiyuhagira bigumaho mugihe gisanzwe cyumuyaga kandi panele ihora inyura mubwogero kugirango ikureho umwuka mwinshi ushobora kuba warabaye mumyobo.Igice gito cyumuringa cyashyizwe hejuru yikibaho hanyuma kigacukura umwobo nyuma yo kwiyuhagira palladium.Isahani idafite amashanyarazi hamwe no gukoresha palladium itanga uburyo bukomeye bwo gufatana umuringa kuri fiberglass.Mugusoza hakorwa igenzura kugirango harebwe ububobere n'ubunini ikote ry'umuringa.

Buri ntambwe ningirakamaro mubikorwa rusange.Ikosa ryose muburyo rishobora gutuma icyiciro cyose cyibibaho bya PCB giseswa.Kandi ubwiza bwa nyuma bwa pcb buryamye cyane murizo ntambwe zavuzwe hano.

Noneho, hamwe nu mwobo uyobora, guhuza amashanyarazi hagati yimbere ninyuma zashyizweho kubibaho byumuzunguruko.Intambwe ikurikiraho ni ugukura umuringa muri ibyo byobo no hejuru no hepfo yibibaho byinsinga kugeza mubyerekezo byihariye - electroplating y'umuringa.

Imashini yuzuye yimashanyarazi idafite amashanyarazi muri PCB ShinTech hamwe na Cutting edge PTH Technology.

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