2014
DOI: 10.1063/1.4893462
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Influence of the bonding front propagation on the wafer stack curvature

Abstract: International audienceThe influence of the dynamics of the direct wafer bonding process on the curvature of the final wafer stack is investigated. An analytical model for the final curvature of the bonded wafers is developed, as a function of the different load components acting during the bonding front propagation, using thin plate theory and considering a strain discontinuity locked at the bonding interface. Experimental profiles are measured for different bonding conditions and wafer thicknesses. A very goo… Show more

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