Seoul Semiconductor reported on September 5th, 2016 that the company is mass producing new LEDs with a luminous efficiency of 210 lm/W at (350 mA). The company claims that the LED design composed of just the LED and phosphor without conventional packaging including frames, gold wires, etc. The company calls this new packageless design “WICOP.” Seoul Semiconductor points out that such packaging elements were previously deemed essential for LED fabrication. ￼ The company claims that the recently launched WICOP (Y22) product completely defies the traditional idea that a simply structured LED would be hard to enhance for improved luminous efficiency. Seoul Semiconductor based the Y22 product entirely on its independent LED chip manufacturing technology and other related technologies. The WICOP Y22 has achieved higher luminous efficiency than packaged, conventional high power LED products; Seoul Semi says. Additionally, the firm says that Y22 boasts greater than 17 percent more luminous efficiency than Chip Scale Package (CSP) LEDs that have a similar appearance.
The company introduced the first WICOP, or packageless LEDs products in 2012 for IT and automotive manufacturers. Then, in 2015, Seoul Semiconductor launched two models of WICOP lighting products. Now, the firm has begun mass production of WICOP LEDS with a 210 lm/W luminous efficiency.￼
WICOP Y22 Specifications Outlined
The official name for the product is the WICOP Z8 Y22 High-power LED. It comes with color temperatures between a minimum of 2600 K and a maximum of 7000K. It operates with a forward current of 2.75 V to 3.0 V. While not specifically listed, when running at 350 mA the 7000K model with a minimum CRI of 70 apparently produces just over 202 lumens for 210 lm/W efficiency. At 350 mA this model has a minimum emission of 190 lm for 197 lm/W efficiency. However, the device typically operates at 700 mA to produce 327 lm for 169 lm/W.
All of the Y22 models can be driven at up to 1.5 A. As expected the 2600K model emits considerably fewer lumens, 138 lm at 350 mA for 143 lm/W efficiency. The company designed the Y22 LED for residential replacement lamps, retail displays, as well as flood street, and high bay lights.
Mr. Ki-bum Nam, CTO of Seoul Semiconductor, said, “The WICOP products which have been independently developed by Seoul Semiconductor would render the currently increasing investment in the packaging industry unnecessary, and will become the standard for next generation LEDs as it is an innovative product that reflects a new wind of change in the LED market.” He added, “We will continue to develop various solutions related to WICOP for customers in addition to developing new WICOP products with a luminous efficiency of over 220lm/W by 2020, thereby opening the door to a new LED period.”