Cov ua rau ntawm vuam cracks nyob rau hauv smt kev tsuas yog suav nrog cov hauv qab no:
1. Cov ntaub qhwv ntawm Circuit Courruit Board thiab lub vuam saum npoo ntawm cov tivthaiv tsis yog pov tseg kom tau raws li kev tsim khoom thiab kev ua haujlwm.
2. Tus muab tshuaj txhuam hniav tsis tau ua tiav cov qauv kev tsim khoom raws li qhov xav tau.
3. Tus coefficient ntawm thermal expansion ntawm ntau cov ntaub ntawv tiv thaiv ntawm vuam thiab qib hluav taws xob yog kev tsis ruaj khov, thiab cov chaw welding tsis ruaj khov thaum lub sij hawm hws.
4. Tus qauv teeb ntawm qhov kub nyhiab ntawm kev xav tsis tau soldering tsis tuaj yeem ua cov organic tshuaj thiab dej muab tso rau hauv ib qho chaw tiv thaiv. 5. Qhov nyuaj ntawm cov khoom txhuas dawb hauv smt cov ntaub ntawv yog qhov kub thiab txias, siab nro ntawm qhov sib cuam tshuam thiab viscosity siab. Qhov nce ntawm interfacial nro yuav ua rau nws nyuaj rau cov txheej txheem ntawm cov tub yees, thiab cov kab nrib pleb
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