Imaphi amaphutha ekwakhiweni kwemaski ye-solder ye-PCBA?

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1. Xhuma amaphedi nezimbobo. Empeleni, izintambo phakathi kwamaphedi afakayo kanye nezimbobo kufanele zivinjwe. Ukuntuleka kwe-solder mask kuzoholela ekushiseleni okungalungile okufana ne-tin encane emajoyintini e-solder, i-welding ebandayo, ama-circuits amafushane, amalunga angahlanganisiwe, namatshe amathuna.

2. Idizayini yemaski ye-solder phakathi kwama-pads kanye nokucaciswa kwephethini yemaski ye-solder kufanele ihambisane nomklamo wetheminali ye-solder yokusabalalisa izingxenye ezithile: uma i-solder yohlobo lwefasitela iphikisana kusetshenziswa phakathi kwamaphedi, ukumelana ne-solder kuzodala i-solder. phakathi kwama-pads ngesikhathi se-soldering. Uma kwenzeka umjikelezo omfushane, ama-pads aklanyelwe ukuba abe ne-solder emele ukumelana phakathi kwezikhonkwane, ngakho-ke ngeke kube khona isifunda esifushane phakathi kwama-pads ngesikhathi se-welding.

3. Ubukhulu bephethini yemaski ye-solder yezingxenye ayifanele. Idizayini yephethini yemaski ye-solder enkulu kakhulu "izovikelana", okuholela ekutheni kungabikho imaski ye-solder, futhi isikhala phakathi kwezingxenye sincane kakhulu.

4. Kunezimbobo ngaphansi kwezingxenye ngaphandle kwemaski ye-solder, futhi ayikho imaski ye-solder ngezimbobo ngaphansi kwezingxenye. I-solder esezimbotsheni ngemva kokushisela kwegagasi ingase ithinte ukwethembeka kwe-IC welding, futhi ingase ibangele ukujikeleza okufushane kwezingxenye, njll. ukukhubazeka.