Underfill flow in flip-chip encapsulation process: a review

FC Ng, MA Abas - Journal of Electronic Packaging, 2022 - asmedigitalcollection.asme.org
The scope of review of this paper focused on the precuring underfilling flow stage of
encapsulation process. A total of 80 related works has been reviewed and being classified …

Spatial analysis of underfill flow in flip-chip encapsulation

FC Ng, MH Zawawi, MA Abas - Soldering & Surface Mount …, 2021 - emerald.com
Purpose The purpose of the study is to investigate the spatial aspects of underfill flow during
the flip-chip encapsulation process, for instance, meniscus evolution and contact line jump …

Effect of solder bump shapes on underfill flow in flip-chip encapsulation using analytical, numerical and PIV experimental approaches

FC Ng, A Abas, MZ Abdullah - Microelectronics Reliability, 2018 - Elsevier
Consistent with the recent trends in which the flip-chip reliability and performance being
prominently prioritized, this paper is devoted to study the effects of solder bump shapes on …

Experimental verification of models for underfill flow driven by capillary forces in flip-chip packaging

JW Wan, WJ Zhang, DJ Bergstrom - Microelectronics Reliability, 2008 - Elsevier
Underfill process is a very important step in the flip-chip packaging because of its great
impact on the reliability of electronic devices. In the control of the underfill dispensing in flip …

Regional segregation with spatial considerations-based analytical filling time model for non-Newtonian power-law underfill fluid in flip-chip encapsulation

FC Ng, A Abas, MZ Abdullah - Journal of …, 2019 - asmedigitalcollection.asme.org
This paper presents a new analytical filling time model to predict the flow of non-Newtonian
underfill fluid during flip-chip encapsulation process. The current model is formulated based …

An analytical model for predicting the underfill flow characteristics in flip-chip encapsulation

JW Wan, WJ Zhang… - IEEE transactions on …, 2005 - ieeexplore.ieee.org
This article describes an analytical model for the prediction of the underfill flow
characteristics in a flip-chip package driven by capillary action. In this model, we consider …

Numerical simulation of conventional capillary flow and no-flow underfill in flip-chip packaging

T Hashimoto, T Shin-ichiro, K Morinishi, N Satofuka - Computers & fluids, 2008 - Elsevier
We developed a numerical method for simulating the underfill flow of conventional capillary
flow and no-flow types in flip-chip packaging. The analytical models for the two types of …

A novel analytical filling time chart for design optimization of flip-chip underfill encapsulation process

FC Ng, MYT Ali, A Abas, CY Khor, Z Samsudin… - … International Journal of …, 2019 - Springer
Underfill encapsulation process regularly encounters productivity issue of long filling time
that incurs additional manufacturing costs. The package was optimized to attain least filling …

Analysis of the flow of encapsulant during underfill encapsulation of flip-chips

S Han, KK Wang - IEEE Transactions on Components …, 1997 - ieeexplore.ieee.org
In this paper, the flow of encapsulant during the underfill encapsulation of flip-chips has
been studied. Analytical as well as numerical methods have been developed to analyze the …

CFD Simulation Analysis and Experimental Study of Capillary Underfill Flow in Heterogeneous Integration

R Miyazawa, C Marushima, T Aoki… - 2021 IEEE 71st …, 2021 - ieeexplore.ieee.org
Capillary Underfill (CUF) process has been widely used in flip-chip packaging since it offers
significant improvement of the solder joint reliability. This study focuses on the underfill flow …