Collective laser‐assisted bonding process for 3D TSV integration with NCP

W Alves Braganca, YS Eom, KS Jang, SH Moon… - Etri …, 2019 - Wiley Online Library
Laser‐assisted bonding (LAB) is an advanced technology in which a homogenized laser
beam is selectively applied to a chip. Previous researches have demonstrated the feasibility …

Process window of simultaneous transfer and bonding materials using laser‐assisted bonding for mini‐and micro‐LED display panel packaging

YS Eom, GM Choi, KS Jang, J Joo, C Lee, JH Oh… - ETRI …, 2024 - Wiley Online Library
A simultaneous transfer and bonding (SITRAB) process using areal laser irradiation is
introduced for high‐yield and cost‐effective production of mini‐or micro‐light‐emitting diode …

Simultaneous transfer and bonding (SITRAB) process for Micro-LEDs using laser-assisted bonding with compression (LABC) process and SITRAB adhesive

KS Choi, J Joo, YS Eom, GM Choi… - 2021 IEEE 71st …, 2021 - ieeexplore.ieee.org
The transfer process of moving individual micro-LED chips to a display substrate has been
regarded as the biggest technical obstacle for the commercialization of displays based on …

Development of stacking process for 3D TSV (through silicon via) structure using laser

KS Choi, WA Braganca, KS Jang… - International …, 2017 - meridian.allenpress.com
TSV chips were designed and fabricated to investigate the effects of the types of the stacking
process on the manufacturability. Two processes were compared: thermocompression and …

Synchronous curable deoxidizing capability of epoxy–anhydride adhesive: Deoxidation quantification via spectroscopic analysis

KS Jang, YS Eom, KS Choi… - Journal of Applied …, 2018 - Wiley Online Library
Thermoset resins have been extensively utilized as an adhesive for electronic devices. In
particular, semiconductor packaging materials between chips/substrates require electrical …

Thermochemical mechanism of the epoxy-glutamic acid reaction with Sn-3.0 Ag-0.5 Cu solder powder for electrical joining

GM Choi, KS Jang, KS Choi, J Joo, HG Yun, C Lee… - Polymers, 2021 - mdpi.com
An epoxy-based solder paste (ESP) is a promising alternative to conventional solder pastes
to improve the reliability of fine-pitch electrical joining because the epoxy encapsulates the …

Novel maskless bumping for 3D integration

KS Choi, KJ Sung, BO Lim, HC Bae, S Jung… - ETRI …, 2010 - Wiley Online Library
A novel, maskless, low‐volume bumping material, called solder bump maker, which is
composed of a resin and low‐melting‐point solder powder, has been developed. The resin …

Impact Modifiers and Compatibilizers for Versatile Epoxy-Based Adhesive Films with Curing and Deoxidizing Capabilities

BY Lee, DH Lee, KS Jang - Polymers, 2021 - mdpi.com
Epoxy resins with acidic compounds feature adhesion, robustness, and deoxidizing ability.
In this study, hybrid adhesive films with deoxidizing and curing capabilities for …

Interconnection process using laser and hybrid underfill for LED array module on PET substrate

KS Choi, WAB Junior, KS Jang… - 2018 IEEE 68th …, 2018 - ieeexplore.ieee.org
Flexible displays and electronics are emerging technology. A PET substrate is one the
strong candidate substrate materials for the applications, however, its low thermal stability …

[HTML][HTML] Laser-assisted bonding (LAB), its bonding materials, and their applications

KS Choi, J Joo, K Jang, GM Choi, HG Yun… - Journal of Welding and …, 2020 - e-jwj.org
Abstract Laser-Assisted Bonding (LAB) and its bonding materials help to find solutions to
productivity, reduced warpage during fabricating modules, and fine-pitch bonding. Fluxing …