National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Study of the solidification structure of a solder joint of an SMD resistor during passing an electric current
Voda, Erik ; Otáhal, Alexandr (referee) ; Skácel, Josef (advisor)
This bachelor’s thesis deals with the analysis of solder alloys and intermetallic compounds. The subject of its investigation is the microstructure of the solder-joint and the influence of electric current on its formation. The proposed experiment involves the soldering of thick-film SMD resistors on FR4 substrate with lead-free solder paste SAC 305 while passing an electric current. The resulting samples are subsequently examined by optical and electron microscopy methods. The analysis consists of processing the images taken and comparing between the samples soldered with and without electric current.

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