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Evaluation and optimization of package processing, design, and reliability through solder joint profile prediction

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2 Author(s)
Yeung, B.H. ; Interconnect Syst. Labs., Motorola Inc., Tempe, AZ, USA ; Lee, T.-Y.T.

Solder joints are generated using a variety of methods to provide both mechanical and electrical connection for applications such as flip-chip, wafer level packaging, fine pitch, ball-grid array, and chip scale packages. Solder joint shape prediction has been incorporated as a key tool to aid in process development, wafer level and package level design and development, assembly, and reliability enhancement. This work demonstrates the application of an analytical model and the Surface Evolver software in analyzing a variety of solder processing methods and package types. Bump and joint shape prediction was conducted for the design of wafer level bumping, flip-chip assembly, and wafer level packaging. The results from the prediction methodologies are validated with experimentally measured geometries at each level of design

Published in:

Electronic Components and Technology Conference, 2001. Proceedings., 51st

Date of Conference:

2001

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