Underfill

Flip-chip technology constantly advances. From PC applications in earlier times to mobile devices nowadays, as the size (chip distance) and bump height of chips are getting smaller, it requires multiple micro mass coatings to complete full underfilling. Extremely accurate ejection control and motion control software technology are thus required for multiple micro mass coatings at micro distances in order to reduce speed inconsistencies in adhesive ejection and transportation.
The Stream Jet piezoelectric dispenser delivers a working frequency up to 1,200Hz. Together with the Stream Vision which provides multiple software imaging functions required by underfilling, including the Fiducial-on-Fly (FoF) and motion mode (constant ejection), they can significantly enhance production speed.
underfillpic1.jpgUnderfill