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 …

Warping model of high-power IGBT modules subjected to reflow soldering process

S Gao, R Wang, H Wang, R Kang - International Journal of Mechanical …, 2023 - Elsevier
High-power insulated gate bipolar transistor (IGBT) modules are the key devices for energy
change and transmission. Reflow soldering process is a crucial process in IGBT module …

Shape dependency of fatigue life in solder joints of chip resistors

J Ha, C Cai, P Yin, Y Lai, K Pan… - 2022 IEEE 72nd …, 2022 - ieeexplore.ieee.org
This study is attempted to correlate between solder joint shape and fatigue life in
experimental and numerical approaches. The test assemblies consisting of R1005 (1.0× 0.5 …

A deep learning approach for reflow profile prediction

Y Lai, J Kataoka, K Pan, J Ha, J Yang… - 2022 IEEE 72nd …, 2022 - ieeexplore.ieee.org
Commercial reflow ovens contain multiple heated zones, which can be individually
controlled for temperature. PCB assemblies travel through each zone at a controlled rate to …

The optimal solution of reflow oven recipe based on physics-guided machine learning model

Y Lai, K Pan, J Ha, C Cai, J Yang, P Yin… - 2022 21st IEEE …, 2022 - ieeexplore.ieee.org
This paper presents a physics-guided machine learning model to provide the optimal reflow
recipe for a 7-zone oven. The numerical method based on the computational fluid dynamics …

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 …

Optimal thermo-mechanical reliability design of 2.5 D lidless package

J Yang, C Cai, P Yin, K Pan, Y Lai… - 2022 21st IEEE …, 2022 - ieeexplore.ieee.org
2.5 D package has been widely used in electronics packages which using multiple
integrated circuit chips placed on an interposer to increase its capacity and performance …

Reliability of Differently Shaped Solder Joints in Chip Resistor Under Drop Impact

J Ha, KA Deo, J Yang, Y Lai… - 2024 IEEE 74th Electronic …, 2024 - ieeexplore.ieee.org
This paper presents a comparative study that demonstrates the influence of solder joint
shapes on the drop test performance of chip resistors. A 77 by 77 mm 2 test board that …

ReflowNet: ConvLSTM-based direct reflow oven recipe optimization framework

J Kataoka, A Farrag, Y Lai, S Park, Y Jin… - Journal of Intelligent …, 2024 - Springer
This paper presents ReflowNet, a domain-adaptive convolutional long short-term memory
(ConvLSTM) neural network-based oven recipe optimization framework for reflow soldering …

Adhesion Layer Influence on Thermomechanical Reliability of Electroplated Copper Through-Glass Via (TGV)

J Yang, K Pan, P Yin, Y Lai, S Park… - 2024 IEEE 74th …, 2024 - ieeexplore.ieee.org
This study investigated the impact of an adhesion layer on Through Glass Via (TGV)
samples and studied the creep behavior of copper TGVs. TGV samples with and without an …