Characterization of a hybrid Cu paste as an isotropic conductive adhesive

YS Eom, KS Choi, SH Moon, JH Park, JH Lee… - ETRI …, 2011 - Wiley Online Library
As an isotropic conductive adhesive, that is, a hybrid Cu paste composed of Cu powder,
solder powder, and a fluxing resin system, has been quantitatively characterized. The …

Catalysis of Silver and Bismuth in Various Epoxy Resins

H Jeong, KS Jang - Polymers, 2024 - mdpi.com
Epoxy resins find extensive utility across diverse applications owing to their exceptional
adhesion capabilities and robust mechanical and thermal characteristics. However, the …

Characterization of fluxing and hybrid underfills with micro‐encapsulated catalyst for long pot life

YS Eom, JH Son, KS Jang, HS Lee, HC Bae… - ETRI …, 2014 - Wiley Online Library
For the fine‐pitch application of flip‐chip bonding with semiconductor packaging, fluxing and
hybrid underfills were developed. A micro‐encapsulated catalyst was adopted to control the …

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 …

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 …

Novel Bumping Material for Solder‐on‐Pad Technology

KS Choi, SW Chu, JJ Lee, KJ Sung, HC Bae… - ETRI …, 2011 - Wiley Online Library
A novel bumping material, which is composed of a resin and Sn3Ag0. 5Cu (SAC305) solder
power, has been developed for the maskless solder‐on‐pad technology of the fine‐pitch flip …

Fine‐Pitch Solder on Pad Process for Microbump Interconnection

HC Bae, H Lee, KS Choi, YS Eom - ETRI Journal, 2013 - Wiley Online Library
A cost‐effective and simple solder on pad (SoP) process is proposed for a fine‐pitch
microbump interconnection. A novel solder bump maker (SBM) material is applied to form a …