I-PCB ye-Multilayer xa kuthelekiswa ne-PCB enye, ngaphandle komgangatho wayo wangaphakathi, ngapha nangapha komhlaba, siyawubona umohluko, lo mahluko ubalulekile kuzinzo nasekusebenzeni kwe-PCB kubo bonke ubomi bayo. Olona thuba luphambili lwe-PCB ye-multilayer: le bhodi ayinayo i-oxidation. Ulwakhiwo olwahlukeneyo, uxinizelelo oluphezulu, itekhnoloji yokugquma umphezulu, ukuqinisekisa umgangatho webhodi yesekethe ikhuselekile, unokukhululeka ekusebenziseni. Oku kulandelayo ziimpawu ezibalulekileyo zokuthenjwa okuphezulu kweebhodi ze-multilayer, oko kukuthi, izibonelelo kunye nokungalunganga kweebhodi ze-PCB multilayer:

1. Ebubanzini yobhedu emngxunyeni udonga PCB ibhodi multilayer iqhele microns 25;

Izinto eziluncedo

Ukungancedi: Kodwa kukho imingcipheko ethile: iingxaki malunga nokwenzeka kokungaphumeleli phantsi kweemeko zomthwalo, ekusetyenzisweni kwayo, ngexesha lokuvutha okanye lokuncipha, uqhagamshelo lombane ngexesha lendibano (ukwahlulwa okungaphakathi komaleko, ukuqhekeka kodonga lomngxunya) okanye phantsi kweemeko zomthwalo. IPC Class2 (umgangatho weefektri ezininzi) ifuna iibhodi ze-PCB multilayer ukuba zingaphantsi kwe-20% yobhedu.

2. Akukho ukulungiswa kwe-welding okanye ukulungiswa kwesekethe evulekileyo

Izibonelelo: Ukujikeleza okugqibeleleyo kuqinisekisa ukuthembeka kunye nokhuseleko, akukho londolozo, akukho bungozi.

Bendlela: PCB multilayer ivulekile ukuba inkonzo ngokungafanelekanga. Nokuba kulungiswe ngokufanelekileyo, kunokubakho umngcipheko wokusilela phantsi kweemeko zomthwalo (ukungcangcazela, njl.

3. Ingaphezulu kwemfuneko zokucoceka kweenkcukacha ze-IPC

Izinto eziluncedo: Ukuphucula ucoceko ibhodi PCB multilayer unako ukuphucula ukuthembeka.

Iingozi: Intsalela kwipaneli ye-wiring, ukuqokelelwa kwe-solder kungabeka umngcipheko kwikhuselo le-solder, intsalela ye-ionic inokukhokelela kumngcipheko wokudleka kunye nokungcola komhlaba we-weld, onokuthi ukhokelele kwimicimbi yokuthembeka (ii-welds ezimbi / ukusilela kombane) kunye Ekugqibeleni kwandisa ukubakho kokungaphumeleli.

4.Ukulawula ngokungqongqo ubomi benkonzo yonyango ngalunye lomphezulu

Izinto eziluncedo: ukuwelda, ukuthembeka kunye nokunciphisa umngcipheko wokungena kokufuma

Iingozi: Unyango oluphezulu lweebhodi ezindala ze-PCB zinokukhokelela kutshintsho lwe-metallographic, kusenokubakho iingxaki kwi-solder, ngelixa ukungena kwamanzi kungakhokelela kwiingxaki ngexesha lokuhlangana kunye / okanye ukusetyenziswa ngqo kokubeka, ukwahlula udonga lwangaphakathi kunye nodonga (isekethe evulekileyo), njl .

Nokuba ukwenziwa kunye nenkqubo yebandla okanye ekusetyenzisweni kwayo, ibhodi ye-multilayer ye-PCB kufuneka ibe nokusebenza okuthembekileyo, ewe, oku kunxulumene nezixhobo kunye nenqanaba lobuchwephesha kumzi-mveliso webhodi ye-PCB.