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 …

Muscle function and coordination of stair ascent

NG Harper, JM Wilken… - Journal of …, 2018 - asmedigitalcollection.asme.org
Stair ascent is an activity of daily living and necessary for maintaining independence in
community environments. One challenge to improving an individual's ability to ascend stairs …

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 …

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 …

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 …

Filling efficiency of flip-chip underfill encapsulation process

FC Ng, MA Abas, MZ Abdullah - Soldering & Surface Mount …, 2020 - emerald.com
Purpose This paper aims to introduce a new indicative parameter of filling efficiency to
quantify the performance and productivity of the flip-chip underfill encapsulation process …

Effect of scale size, orientation type and dispensing method on void formation in the CUF encapsulation of BGA

A Abas, FC Ng, ZL Gan, MHH Ishak, MZ Abdullah… - Sādhanā, 2018 - Springer
Prediction of void occurrence during capillary underfill encapsulation process is vital to
avoid package failure due to incomplete filling during the encapsulation process. Two …

Prediction of the void formation in no-flow underfill process using machine learning-based algorithm

MN Nashrudin, FC Ng, A Abas, MZ Abdullah… - Microelectronics …, 2022 - Elsevier
This paper investigated the variation variables on the void formation in the no-flow underfill
process. A total of 96 distinct no-flow underfill cases were numerically simulated to …

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 …

Effect of hourglass shape solder joints on underfill encapsulation process: numerical and experimental studies

MN Nashrudin, ZL Gan, A Abas, MHH Ishak… - Soldering & Surface …, 2020 - emerald.com
Purpose In line with the recent development of flip-chip reliability and underfill process, this
paper aims to comprehensively investigate the effect of different hourglass shape solder …