Gulu loyang'anira dera liwonetsa kusanja bwino pakapangidwe ka SMT. Nthawi zambiri, kuwotcha koyipa kumakhudzana ndi ukhondo wa malo opanda kanthu a PCB. Ngati kulibe dothi, sipadzakhalanso kuwotcha koyipa. Chachiwiri, tinning Pamene flux palokha zoipa, kutentha ndi zina zotero. Ndiye ziwonetsero zazikulu zowopsa za malata amagetsi pakupanga ndi kukonza ma board board ndi chiyani? Kodi mungathetse bwanji vutoli mutapereka?
1. Pamwamba pa malata a gawo lapansi kapena zigawo zake zimakhala ndi okosijeni ndipo pamwamba pa mkuwa ndi wosalala.
2. Pali ma flakes pamwamba pa bolodi lozungulira popanda malata, ndipo plating wosanjikiza pamwamba pa bolodi ili ndi zonyansa.
3. Chophimba chotheka kwambiri chimakhala chowawa, pali chodabwitsa choyaka moto, ndipo pali ma flakes pamwamba pa bolodi popanda malata.
4. Pamwamba pa bolodi la dera amamangiriridwa ndi mafuta, zonyansa ndi zina, kapena pali mafuta otsalira a silicone.
5. Pamphepete mwa maenje otsika, pali zowoneka bwino zowoneka bwino, ndipo chophimba chapamwamba chimakhala cholimba komanso chowotcha.
6. Chophimba kumbali imodzi ndi chokwanira, ndipo chophimba kumbali inayo ndi osauka, ndipo pali nsonga yowoneka bwino yowala pamphepete mwa dzenje lochepa.
7. Bungwe la PCB silikutsimikiziridwa kuti likukumana ndi kutentha kapena nthawi panthawi ya soldering, kapena flux sikugwiritsidwa ntchito moyenera.
8. Pali zonyansa zamtundu wina pakupanga pamwamba pa bolodi la dera, kapena tinthu tating'onoting'ono tatsalira pamwamba pa dera panthawi yopanga gawo lapansi.
9. Dera lalikulu lokhala ndi mphamvu zochepa silingakutidwe ndi malata, ndipo pamwamba pa bolodi lozungulira lili ndi mdima wandiweyani wofiyira kapena wofiyira, wokhala ndi zokutira kwathunthu mbali imodzi ndi zokutira zoyipa mbali inayo.