Andere Kunden interessierten sich auch für
![Experimental investigations on the influence of physico-chemical parameters on anaerobic degradation in MBT residual waste]( "Experimental investigations on the influence of physico-chemical parameters on anaerobic degradation in MBT residual waste")
Experimental investigations on the influence of physico-chemical parameters on anaerobic degradation in MBT residual waste19,10 €![Plastic Injection Mold Processing]( "Plastic Injection Mold Processing")
Plastic Injection Mold Processing40,99 €![Influence of texture on the plastic anisotropy of Mg Alloys]( "Influence of texture on the plastic anisotropy of Mg Alloys")
Influence of texture on the plastic anisotropy of Mg Alloys32,99 €![Investigations and Applications of Severe Plastic Deformation]( "Investigations and Applications of Severe Plastic Deformation")
Investigations and Applications of Severe Plastic Deformation43,99 €![Experimental and Theoretical Investigations of Wicking in Porous Media]( "Experimental and Theoretical Investigations of Wicking in Porous Media")
Experimental and Theoretical Investigations of Wicking in Porous Media62,80 €![Experimental and Numerical Investigations of Two-Phase Flow with Non-Isothermal Boundary Conditions under Microgravity Conditions]( "Experimental and Numerical Investigations of Two-Phase Flow with Non-Isothermal Boundary Conditions under Microgravity Conditions")
Experimental and Numerical Investigations of Two-Phase Flow with Non-Isothermal Boundary Conditions under Microgravity Conditions56,90 €![Experimental Investigations on Thermal Efficiency. Example of the Composite Salt Gradient Solar Pond with Dual Reflectors and Triple Layer Glass]( "Experimental Investigations on Thermal Efficiency. Example of the Composite Salt Gradient Solar Pond with Dual Reflectors and Triple Layer Glass")
Experimental Investigations on Thermal Efficiency. Example of the Composite Salt Gradient Solar Pond with Dual Reflectors and Triple Layer Glass47,95 €
In this study the impacts of temperature and moisture on the warpage of molded plastic packages were investigated. The investigation started with material characterizations. The influences of post-mold cure, reflow soldering, temperature cycles and high temperature storage on the material parameter (Young¿s modulus, coefficient of thermal expansion and glass transition temperature) of the investigated Epoxy Molding Compound (EMC) were investigated. By using test specimens (bi-material systems composed of EMC and copper, EMC and silicon) as well as real molded plastic packages (QFN packages), it was shown how material parameter changes due to thermal aging of EMC can lead to warpage changes of molded plastic packages. The impact of thermal aging on the structural changes of EMC was investigated. The oxidation layer, which developed on the surfaces of EMC due to thermal aging, was characterized. The formation of a second glass transition temperature in EMC due to thermal aging was investigated as a function of storage time and storage temperature. In the last chapter of this study, the simultaneous impact of temperature and moisture on the warpage of molded plastic packages was investigated by means of experiments and simulations. This study provides a deep understanding of warpage changes and stress changes respectively in molded plastic packages, when these are subjected to reflow soldering, temperature cycles, high temperature storage and moisture.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.