Iyi ngingo irerekana ahanini ingaruka eshatu zo gukoresha PCB yarangiye.

01

PCB yarangiye irashobora gutera hejuru ya okiside
Oxidation ya padi yo kugurisha bizatera kugurisha nabi, amaherezo bishobora gutera kunanirwa imikorere cyangwa ibyago byo guta ishuri. Uburyo butandukanye bwo kuvura imbaho ​​zumuzingi bizagira ingaruka zitandukanye zo kurwanya okiside. Ihame, ENIG isaba ko ikoreshwa mumezi 12, mugihe OSP isaba ko ikoreshwa mumezi atandatu. Birasabwa gukurikiza ubuzima bwuruganda rwuruganda rwa PCB (shelflife) kugirango umenye neza.

Ubusanzwe imbaho ​​za OSP zishobora koherezwa mu ruganda rwubuyobozi kugirango zoze firime ya OSP hanyuma wongere ushyireho urwego rushya rwa OSP, ariko hari amahirwe yuko umuzunguruko wumuringa uzangirika mugihe OSP yakuweho no gutoragura, bityo rero nibyiza kuvugana nuruganda rwubuyobozi kugirango wemeze niba firime ya OSP ishobora gusubirwamo.

Ikibaho cya ENIG ntigishobora gusubirwamo. Mubisanzwe birasabwa gukora "gukanda-guteka" hanyuma ukareba niba hari ikibazo kijyanye no kugurisha.

02

PCB yarangiye irashobora gukuramo ubuhehere kandi igatera ikibaho

Ikibaho cyumuzunguruko gishobora gutera popcorn ingaruka, guturika cyangwa gusibanganya mugihe ikibaho cyumuzunguruko kigenda kigaruka nyuma yo kwinjiza amazi. Nubwo iki kibazo gishobora gukemurwa no guteka, ntabwo ubwoko bwose bwibibaho bubereye guteka, kandi guteka bishobora gutera ibindi bibazo byiza.

Muri rusange, Ubuyobozi bwa OSP ntibusabwa guteka, kuko guteka ubushyuhe bwo hejuru byangiza firime ya OSP, ariko abantu bamwe na bamwe babonye abantu bafata OSP guteka, ariko igihe cyo guteka kigomba kuba kigufi gishoboka, kandi ubushyuhe ntibukwiye. ube hejuru cyane. Birakenewe kuzuza itanura ryerekana mugihe gito, kikaba ari ingorane nyinshi, bitabaye ibyo padiri ugurisha azaba oxyde kandi bikagira ingaruka kumasudira.

03

Ubushobozi bwo guhuza PCB yarangiye burashobora gutesha agaciro no kwangirika

Nyuma yumuzunguruko wumuzunguruko umaze gukorwa, ubushobozi bwo guhuza ibice (layer to layer) bizagenda byangirika buhoro buhoro cyangwa byangirika mugihe, bivuze ko uko ibihe bigenda byiyongera, imbaraga zo guhuza ibice byubuyobozi bwumuzunguruko zizagabanuka buhoro buhoro.

Iyo ikibaho cyumuzunguruko gikorerwa ubushyuhe bwinshi mu itanura ryerekana, kubera ko imbaho ​​zumuzunguruko zigizwe nibikoresho bitandukanye zifite coefficient zitandukanye zo kwagura amashyuza, mugihe cyo kwaguka kwinshi no kugabanuka, birashobora gutera de-lamination hamwe nubuso bwinshi. Ibi bizagira ingaruka zikomeye ku kwizerwa no kumara igihe kirekire kwizerwa ryumuzunguruko, kubera ko gusibanganya ikibaho cyumuzunguruko bishobora guca ukubiri hagati yurwego rwumuzunguruko, bikavamo imiterere mibi yumuriro. Ikibazo gihangayikishije cyane ni ibibazo bibi byigihe gito bishobora kubaho, kandi birashoboka cyane gutera CAF (micro short circuit) utabizi.

Ingaruka zo gukoresha PCB zararangiye ziracyari nini cyane, kuburyo abashushanya bagikeneye gukoresha PCB mugihe ntarengwa kiri imbere.