Reflow recipe establishment based on CFD-Informed machine learning model

Y Lai, JH Ha, KA Deo, J Yang, P Yin… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article proposes a computational fluid dynamics (CFD)-based machine learning (ML)
model to set the temperature of a convection reflow oven and control conveyor speed. Due …

Effect of differently shaped solder joints of chip resistor on fatigue life

J Ha, Y Lai, J Yang, P Yin… - Journal of …, 2024 - asmedigitalcollection.asme.org
As surface mount components shrink in size, smaller apertures on stencils during solder
paste printing can lead to uneven solder volume on a single resistor. This can result in the …

Reflow profiling with the aid of machine learning models

Y Lai, S Park - Soldering & Surface Mount Technology, 2023 - emerald.com
Purpose This paper aims to propose a method to quickly set the heating zone temperatures
and conveyor speed of the reflow oven. This novel approach intensely eases the trial and …

Influence of stiffener design on co-packaged optics (CPO) 2.5 D heterogeneous packages

KA Deo, Y Lai, J Yang, JH Ha… - 2024 IEEE 74th Electronic …, 2024 - ieeexplore.ieee.org
The growth in 5G, AI, HPC and IoT have been in the rise in the past few years. This
exponential growth has led to research and development of co-packaged optics (CPO) …

Enhanced solder fatigue life of chip resistor by optimizing solder shape

J Ha, Y Lai, J Yang, P Yin, S Park - Microelectronics Reliability, 2023 - Elsevier
As surface-mounted components get smaller, especially passive components such as chip
resistor or chip capacitor, small apertures on a stencil are required, which generates higher …

Machine Learning Enhanced Reflow Profiling Approach

Y Lai - 2024 - search.proquest.com
Reflow soldering is a technique that temporarily applies solder paste to contact pads of
numerous surface mount components Reflow profiling is an optimization process to …

Reflow Oven Zone Temperature Advisor using the AI-Driven Smart Recipe Generator

Y Lai, P Yin, J Yang, J Ha, KA Deo… - 2023 IEEE 73rd …, 2023 - ieeexplore.ieee.org
This study introduces a novel method for expeditiously configuring the heating zone
temperatures and conveyor speed of a reflow oven, particularly for thick PCBs with bulky …

Enhanced Foam Package Design for Drop/Impact Using Accurate Predictive Simulation

P Yin, S Park, B Jacob, A Gowda - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The interconnections and chips of the internal components of electronic devices need to be
protected to prevent damage during shipping, handling, and daily use. This article studied …

Residual stress measurement of build-up layer in silicon wafers

J Yang, C Cai, Y Lai, J Ha, H Wang… - 2023 IEEE 73rd …, 2023 - ieeexplore.ieee.org
Residual stress has been a big concern during the fabrication and assembly which may
damage the electronic device or shorten the device's lifetime. Several methods have been …

Investigation on Fatigue Life of Non-Symmetric Solder Joints in Chip Resistors

J Ha, J Yang, P Yin, KA Deo, C Cai… - 2023 IEEE 73rd …, 2023 - ieeexplore.ieee.org
This study is aimed to find correlation between the fatigue life and solder joint shape with
respect to component location in experimental and numerical approaches. The test vehicle …