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SemiLEDs Introduces the New I-DoTM LED Chip

2011-04-12

Chunan Science Park, Taiwan (March 22, 2011) – SemiLEDs Corporation (NASDAQ: LEDS), a developer and manufacturer of LED chips and LED components, today announced the introduction of the new I-Do™ LED, an innovative new chip that will be featured in SemiLEDs’ ultra high brightness LED product portfolio. I-Do is the second generation of the I-Core AK™ series of LEDs from SemiLEDs, which are designed to provide further improvements in brightness, reliability and overall efficiency.

The I-Do LED features a new design with advantages in improved reliability, optimization of current distribution and lower forward voltages at high current operations of 700mA and 1A. The I-Do LED is not only more reliable, but significantly brighter as the creative design produces improved internal quantum efficiency. In a white light package, a 45 mil I-Do chip can deliver up to 135 lm at 350mA with CCT of 5000-7000K, more than a 10% improvement over the previous generation. With increased efficiency, reliability and the lowest thermal resistance in the market, the I-Do chip is ideal for small footprint, high performance applications.

I-Do is available for sampling, with high volume production in April. For more information on the I-DO LED or other products of SemiLEDs, please visit www.semileds.com or contact sales@semileds.com.

About SemiLEDs
SemiLEDs develops and manufactures LED chips and LED components primarily for general lighting applications, including street lights and commercial, industrial and residential lighting. SemiLEDs sells blue, green and ultraviolet (UV) LED chips under the MvpLED brand.

Contacts:

David Young
Chief Financial Officer
SemiLEDs Corporation
208-546-9018
investor@semileds.com

Erica Mannion
Investor Relations
Sapphire Investor Relations, LLC
212-766-1800 Ext. 203
investor@semileds.com