The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Recent studies revealed that there is no simple ldquodrop inrdquo solution for the lead-free replacement of SnPb joints, instead different Sn-based solders are advantageous for different use conditions, which can be dominated either by drop loading or by thermal cyclic loading in harsh use conditions. By way of high-speed shear testing reliability assessments of components during drop and shock events...
Many solder creep and fatigue models have been developed to predict the fatigue life of solder joints under low-cycle fatigue conditions. However, because of the diversity of leadfree solders, additional work has been performed to find out effects of alloying content, surface finish, thermal cycle conditions and microstructure. Based on creep properties, the solder joint creep strain and creep dissipation...
Abstract form only given. Lifetime prediction for advanced packaging faces two challenges in the future: lifetime models for the nano-domain (material level) and consistent methodologies for a system approach. Either must incorporate a physics of failure based concept as well as simulative and experimental procedures to analyse failure mechanisms and describe them theoretically on different length...
A large program has been performed in France in order to develop, for the design and operation of High Temperature Reactor plants, defect assessment and Leak-Before-Break (LBB) procedures. As a result of the collaboration between CEA, EdF and Framatome, the A16 guide is now included in the RCC-MR 2002 edition. The main defect assessment procedures proposed in this A16 guide are: • fatigue or creep-fatigue...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.