A novel model for simulating the racing effect in capillary-driven underfill process in flip chip

W Zhu, K Wang, Y Wang - Journal of Micromechanics and …, 2018 - iopscience.iop.org
Underfill is typically applied in flip chips to increase the reliability of the electronic
packagings. In this paper, the evolution of the melt-front shape of the capillary-driven …

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 …

Three-dimensional simulation of underfill process in flip-chip encapsulation

H Wang, H Zhou, Y Zhang, D Li, K Xu - Computers & fluids, 2011 - Elsevier
Underfill is an important process in flip-chip encapsulation because of its great impact on the
reliability of the electronic packagings. This paper focuses on the study of the fluid flow in …

Dynamic filling characteristics of a capillary driven underfill process in flip-chip packaging

SH Lee, HJ Lee, JM Kim, YE Shin - Materials Transactions, 2011 - jstage.jst.go.jp
In recent years, flip-chip packaging technology has been regarded as one of the most
promising interconnect methods because of the superior electrical performance such as the …

Investigation of characteristics of the capillary-driven underfill flow

K Wang, Y Wang, W Zhu - 2018 19th International Conference …, 2018 - ieeexplore.ieee.org
Underfill is applied to fill the gap between the silicon chip and the organic substrate of the
flip-chip to enhance its thermal-mechanical reliability. This paper focus on the traditional …

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 …

Prediction of filling time in capillary-driven underfill process through 3D numerical analysis

K Wang, Y Wang, W Zhu - 2018 19th International Conference …, 2018 - ieeexplore.ieee.org
Underfill, mainly composed of epoxy resin and silica fillers, is used to fill the standoff gap in
flip chip to alleviate stress and prevent the solder bumps from crack and fatigue fracture. In …

[HTML][HTML] Effect of flip-chip ball grid array structure on capillary underfill flow

HH Hung, YC Cheng, SJ Hwang, HJ Chang… - Results in …, 2024 - Elsevier
During the capillary underfill (CUF) process in flip-chip packaging, issues like incomplete
filling, voids, wire sweeping, and overflow can impact product reliability and the relatively …

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 …

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 …