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Polymères underfills innovants pour l'empilement de puces éléctroniques.

Abstract : Since the invention of the transistor in the Fifties, performances of microelectronics components did not cease progressing thanks to their density increase. Unfortunately, miniaturization of components increases manufacturing costs in a prohibitory way. A solution, allowing densification and functionalization increase without costs rise, is microelectronics components stack. Their electrical connections are carried out using vertical interconnections welded by means of solder joints. In order to prevent their ruptures during thermal dilatations, interconnections are protected thanks to polymer underfill. The objective of this thesis is to evaluate the feasibility and the relevance of a new solution of polymer filling, called wafer-level underfill (WLUF). Flow of underfill during components assembly step is modeled in order to predict ideal bonding parameters, allowing electrical interconnections formation. Then, integration of new underfills, having different thermomechanical properties, being able to affect device integrity and functioning, the study of WLUF process reliability and, consequently, the evaluation of its industrialization possibility is carried out.
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Alisée Taluy. Polymères underfills innovants pour l'empilement de puces éléctroniques.. Autre. Université de Grenoble, 2013. Français. ⟨NNT : 2013GRENI047⟩. ⟨tel-00965616⟩

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