YEST Co., Ltd. is a technology company that is expanding its future value into the green hydrogen business,
built on unrivaled proprietary technology in semiconductor and display thermal processing equipment.
The milestones of YEST, grown on proprietary thermal processing technology since its founding in 2000.
Building on our semiconductor and display thermal equipment technology, we are expanding into the green hydrogen energy business.

Thermal processing and environmental control equipment for the wafer process, including Furnace, Chiller, and NEOCON systems

Thermal processing equipment for OLED/FPD manufacturing, including Laminators, Autoclaves, and Ovens

Green hydrogen production systems based on AEM water electrolysis Electrolysers
Built on proprietary technology in thermal processing, precision environmental control, and water electrolysis, YEST spans the semiconductor, display, and green hydrogen processes.
Proprietary furnace technology for wafer diffusion, deposition, and annealing, and for forming display oxide films.
Cryogenic chillers and humidity/temperature control precisely maintain the process environment.
Film lamination, pressurized curing, and UV curing raise the quality of display and semiconductor processes.
AEM water electrolysis produces green hydrogen coupled with renewable energy.
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