Modeling of Interfacial Delamination in Plastic IC Packages Under Hygrothermal LoadingSource: Journal of Electronic Packaging:;2005:;volume( 127 ):;issue: 003::page 268Author:Andrew A. Tay
DOI: 10.1115/1.1938209Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ever since the discovery of the “popcorn” failure of plastic-encapsulated integrated-circuit (IC) packages in the 1980s, much effort has been devoted to understanding the failure mechanism and modeling it. It has been established that such failures are due to the combined effects of thermal stresses and hygrostresses that arise during solder reflow of plastic IC packages. In recent years interfacial fracture mechanics has been applied successfully to the analysis of delamination or crack propagation along interfaces in plastic IC packages. This paper presents some fundamental aspects of interfacial fracture mechanics and describes some of the numerical techniques available for calculating the strain energy release rate and mode mixity at the tips of cracks at interfaces in plastic-encapsulated IC packages. A method of calculating the combined effects of thermal stress and hygrostress on the energy release rate is also described. Some case studies are presented that illustrate how the techniques are applied to predicting delaminaton in IC packages. Some experimental verification of predictive methodology is also presented.
keyword(s): Fracture (Materials) , Delamination AND Reflow soldering ,
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contributor author | Andrew A. Tay | |
date accessioned | 2017-05-09T00:15:51Z | |
date available | 2017-05-09T00:15:51Z | |
date copyright | September, 2005 | |
date issued | 2005 | |
identifier issn | 1528-9044 | |
identifier other | JEPAE4-26247#268_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/131630 | |
description abstract | Ever since the discovery of the “popcorn” failure of plastic-encapsulated integrated-circuit (IC) packages in the 1980s, much effort has been devoted to understanding the failure mechanism and modeling it. It has been established that such failures are due to the combined effects of thermal stresses and hygrostresses that arise during solder reflow of plastic IC packages. In recent years interfacial fracture mechanics has been applied successfully to the analysis of delamination or crack propagation along interfaces in plastic IC packages. This paper presents some fundamental aspects of interfacial fracture mechanics and describes some of the numerical techniques available for calculating the strain energy release rate and mode mixity at the tips of cracks at interfaces in plastic-encapsulated IC packages. A method of calculating the combined effects of thermal stress and hygrostress on the energy release rate is also described. Some case studies are presented that illustrate how the techniques are applied to predicting delaminaton in IC packages. Some experimental verification of predictive methodology is also presented. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Modeling of Interfacial Delamination in Plastic IC Packages Under Hygrothermal Loading | |
type | Journal Paper | |
journal volume | 127 | |
journal issue | 3 | |
journal title | Journal of Electronic Packaging | |
identifier doi | 10.1115/1.1938209 | |
journal fristpage | 268 | |
journal lastpage | 275 | |
identifier eissn | 1043-7398 | |
keywords | Fracture (Materials) | |
keywords | Delamination AND Reflow soldering | |
tree | Journal of Electronic Packaging:;2005:;volume( 127 ):;issue: 003 | |
contenttype | Fulltext |