Numerical and Mechanical Analysis of Direct Wafer Bonding Considering Non-Uniform Impurity Particle Distributions

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Bonding quality depends significantly on impurity particle distribution and influences strain energy within wafers.
The study identifies curvature, thickness, and impurity distribution as critical to assessing bonding quality.
A finite element model was developed to simulate the effects of various impurity distributions on wafer bonding.
Insights gained could enhance the performance of bonded semiconductor wafers in integrated applications.

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Numerical models assess bonding quality in semiconductor wafers, revealing impurity impact and strain relations.

Tang et al. (2025) studied this question.

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