26 records found
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Authored
Nano-metal materials have received considerable attention because of their promising performance in wide bandgap semiconductor packaging. In this study, molecular dynamics (MD) simulation was performed to simulate the nano-Cu sintering mechanism and the subsequent mechanical b ...
Driving by the increased demand for hermetic packaging in the more than Moore (MtM) roadmap, a Cu nanoparticle sintering-enabled hermetic sealing solution was developed with a small-size sealing ring. The developed technology simplifies microfabrication and requires less surfa ...
High temperature viscoplastic deformation behavior of sintered nanocopper paste used in power electronics packaging
Insights from constitutive and multi-scale modelling
As a promising technology for high-power and high-temperature power electronics packaging, nanocopper (nanoCu) paste sintering has recently received increasing attention as a die-attachment. The high-temperature deformation of sintered nanoCu paste and its underlying mechanism ...
Effects of temperature and grain size on diffusivity of aluminium
Electromigration experiment and molecular dynamic simulation
Understanding the atomic diffusion features in metallic material is significant to explain the diffusion-controlled physical processes. In this paper, using electromigration experiments and molecular dynamic (MD) simulations, we investigate the effects of grain size and temper ...
Nano-copper sintering is one of new die-attachment and interconnection solutions to realize the wide bandgap semiconductor power electronics packaging with benefits on high temperature, low inductance, low thermal resistance and low cost. Aiming to assess the high-temperature ...
Advances in semiconductor device manufacturing technologies are enabled by the development and application of novel materials. Especially one class of materials, nanoporous films, became building blocks for a broad range of applications, such as gas sensors and interconnects. ...
To meet the requirements of low temperature packaging and high temperature operation for wide bandgap semiconductors, the traditional reflow soldering is gradually substituted by the metallic nanoparticle sintering interconnection. However, the high sintering densification is ...
Effects of Defect and Temperature on the Mechanical Performance of WS2
A Multiscale Analysis
This paper analyzes the mechanical properties of tungsten disulfide (WS2) by means of multiscale simulation, including density functional theory (DFT), molecular dynamic (MD) analysis, and finite element analysis (FEA). We first conducted MD analysis to calculate the mechanica ...
Insights into the high-sulphur aging of sintered silver nanoparticles
An experimental and ReaxFF study
In high power electronics packaging, sintered silver nanoparticle joints suffer from thermal-humidity- electrical-chemical joint driven corrosion in extreme environments. In this paper, we conducted aging tests on sintered silver nanoparticles under high-temperature, high-humi ...