Problem Statement

Which factors encourage electromigration? Distance between trace Moisture and BIAS Flux residues Voltage creepage Which surfaces do you consider that are solderable? Titanium Brass Tin Bare Copper Which term is not related to a soldering process? Sputtering Fountain Solder Reflow Sintering You have to attach a glass die on a circuit board, what method will you use? adhesive mount anisotropic conductive film Sintering Soldering Can you mount multiple components on the same pads on a circuit board? No, pads corespond to a single component Squeeze the parts to fit No, multiple parts cannot fit Stackup the parts on the same pad What holds smt components not to fall on a second reflow? Reflow temperature Solder paste surface tension Solder paste surace insulation Board Carrier How to test cleanliness, number of nacl contaminants of an printed circuit assembly? Scanning Acoustic Microscopy Differential Scanning Calorimetry Fourier Transform infrared spectroscopy, ROSE method What is the role