Effects of some parameters on warpage and bump-joint stresses of COG packages

M. Y. Tsai*, C. Y. Wu, C. W. Huang, W. C. Cheng, S. R. Kong, S. S. Yang, S. M. Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Various parameters such as thermal loads, adhesive material properties, and fillets, that affect the warpage and bump joint stresses of the chip-on-glass (COG) packages, are discussed. Two and three dimensional finite element models are employed for calculating the warpage and bump- joint stresses in term of such parameters. The real-time full-field Twyman-Green interferometry is used for measuring the out-of-plane deformations of the specimens and providing validation of the warpage calculated from finite element models. It is shown that the fillets strongly affect the warpage of the COG specimens by changing the convex shape of warpage for those without fillets to the saddle shape for those with fillets.

Original languageEnglish
Title of host publication2004 4th IEEE International Conference on Polymers and Adhesives in Microelectronics and Photonics
Pages182-190
Number of pages9
StatePublished - 2004
Event2004 4th IEEE International Conference on Polymers and Adhesives in Microelectronics and Photonics - Portland, OR, United States
Duration: 12 09 200415 09 2004

Publication series

Name2004 4th IEEE International Conference on Polymers and Adhesives in Microelectronics and Photonics

Conference

Conference2004 4th IEEE International Conference on Polymers and Adhesives in Microelectronics and Photonics
Country/TerritoryUnited States
CityPortland, OR
Period12/09/0415/09/04

Fingerprint

Dive into the research topics of 'Effects of some parameters on warpage and bump-joint stresses of COG packages'. Together they form a unique fingerprint.

Cite this