Die Crack Resolution through Pick-up Process Optimization for BGA Package
R. Rodriguez, E. Graycochea Jr., F. R. Gomez, E. Manalo
Journal of Engineering Research and Reports · pp. 32–36 · Published 25 Feb 2021
10.9734/jerr/2021/v20i317277Abstract
With the new devices and new technologies in the semiconductor industry are getting more challenging to process because issues are unavoidable especially on thin dies. The paper is focused on the improvement done on a ball grid array (BGA) substrate package assembly to address the quantity of rejection of die crack during die picking at the die attach process station. High pick force and high needle top height found out during the pick-up process is the main root cause of die crack. Parameter optimization particularly for die picking with the combination of pick force and needle top height parameter was done to eliminate this type of issue after the die attaches process. With the die attach process improvement, a reduction of 100 percent of die crack occurrence was successfully achieved. For future works, the improvement and learnings could be used for devices with similar constraints.
Cited by 1
Nikhil Gupta, René Poelma, GuoQi Zhang · Journal of Micromechanics and Microengineering · 2024
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