The Study of the Temperature Ramp-up Rate on the Warpage of IC Packages in the IR-reflow Process

碩士 === 國立中山大學 === 機械工程學系研究所 === 88 === The main aim of this study is to extending the holographic interferometry technique to measure the effect of the temperature ramp-up rate on the warpage of IC packages in the IR-reflow process . It is noted that both the warpage and the ambient temperature chan...

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Bibliographic Details
Main Authors: Chih-Fang Chang, 張志方
Other Authors: Chi-Hui Chien
Format: Others
Language:zh-TW
Published: 2000
Online Access:http://ndltd.ncl.edu.tw/handle/06023236914875758794
Description
Summary:碩士 === 國立中山大學 === 機械工程學系研究所 === 88 === The main aim of this study is to extending the holographic interferometry technique to measure the effect of the temperature ramp-up rate on the warpage of IC packages in the IR-reflow process . It is noted that both the warpage and the ambient temperature change can cause image fringes. Therefore, an auxiliary sphere is used to identify the fringe numbers caused by the ambient temperature change during the experiment. Then, the Taguchi method will be deduced to study the effect of the temperature ramp-up rate and peak waiting temperature on the warpage of PBGA package in the IR-reflow process.