Sumitomo Chemical of Tokyo and Samsung LED of Suwon, Korea, have established a joint venture in Korea for research and development, manufacturing, and sale of sapphire substrates for LEDs.
The companies hope that the venture, an LED sapphire substrate business, ultimately becomes a comprehensive provider of LED-related materials.
After sapphire ingots are sliced into thin sheets and processed
into sapphire substrates. The substrates are then coated with a luminescent layer to produce LEDs. The companys point out that further market growth is expected mainly in LED applications for LCD
television backlights, interior lighting, and automobiles. For this reason demand for
sapphire substrates and related materials is anticipated to increase.