A DFT Characterization of Structural, Mechanical, and Thermodynamic Properties of Ag9In4 Binary Intermetallic Compound
نویسندگان
چکیده
The intermetallic compounds (IMCs) at the interface between solder joint and metal bond pad/under bump metallization (UBM) exert a significant impact on thermal–mechanical behavior of microelectronic packages because their unique physical properties. In this study, theoretical investigation properties, namely structural, mechanical, thermodynamic Ag9In4 IMC was conducted using ab initio density functional theory (DFT) calculations. calculated equilibrium lattice constants were in good agreement with literature experimental data. Furthermore, elastic constants, we can derive ductility brittleness nature, anisotropy, direction-dependent properties through several indices, three-dimensional surface representation, two-dimensional projections calculations inferred that cubic confers structural mechanical stability, ductility, relative low stiffness hardness, anisotropy. Finally, i.e., Debye temperature, heat capacity, minimum thermal conductivity, also investigated. Evidently, low-temperature capacity conforms to high-temperature one complies classical Dulong–Petit law.
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ژورنال
عنوان ژورنال: Metals
سال: 2022
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met12111852