In-situ X-ray mu Laue diffraction study of copper through-silicon vias

摘要

In this work, we developed an original in-situ strain investigation of a Cu through silicon vias (TSVs) sample using X-ray mu Laue diffraction mapping. We perform an in-situ investigation of a Cu TSV sample. Three different stages were analysed: (i) at room temperature, (ii) during an annealing at 400 degrees C and, (iii) at room temperature again after the annealing. In combination with analytical and Finite Element Method analysis, the Cu extrusion and grain growth are identified and quantified, and, their effects on the measured Si strain fields are discussed. (C) 2015 Elsevier Ltd. All rights reserved.