@inproceedings{60660d3c9179444686044f418ae0c1cb,
title = "Warpage and curvature determination of PCB with DIMM socket during reflow process by strain gage measurement",
abstract = "The purpose of this study is to in-situ measure the warpage of the PCB with surface-mount dual in-line memory module (DIMM) sockets during reflow process by using strain gages. In the experiments, a full-field shadow moir{\'e} is used for measuring real-time out-of-plane deformations (or warpage) of the PCB with DIMM sockets under heating condition. A finite element method (FEM) is used to analyze the thermally-induced deformation of the PCB with DIMM sockets in order to ensure the validity of the measurement. The conventional strain gages and rosette are employed to in-situ measure the strains (even though they are in-plane strain data) in this PCB specimen during the solder reflow process. The results indicate that the strain gage measurement can be used to determine the bending strains of the PCB occurring during the solder reflow. These bending strains can be transferred to curvature data and global warpage. Therefore, it provides a real-time and easy-to-use method for monitoring the PCB warpage under temperature variation during the reflow process. In addition, the strain gage rosette has been successfully proved to be an enabling measurement of the local and full-field deformation of the PCB with DIMM socket during reflow process.",
keywords = "FEM, PCB, Shadow moir{\'e}, Solder reflow, Strain gage, Warpage",
author = "Huang, {P. S.} and Lin, {Y. H.} and Huang, {C. Y.} and Tsai, {M. Y.} and Huang, {T. C.} and Liao, {M. C.}",
year = "2010",
doi = "10.1109/IMPACT.2010.5699599",
language = "英语",
isbn = "9781424497836",
series = "International Microsystems Packaging Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference, Proceedings",
booktitle = "International Microsystems Packaging Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference, Proceedings",
note = "2010 5th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference ; Conference date: 20-10-2010 Through 22-10-2010",
}