Goldeneye ( http://www.goldeneyeled.com ) has developed a freestanding epi-only LED that will power its high brightness light sources for projection and general lighting applications in the future. Utilizing a novel and patent-pending fabrication process, the company has been able to simplify manufacturing while enhancing device performance. The result is a new type of LED that Goldeneye has dubbed the “EpiChip™”.
The new device marks the introduction of several Goldeneye innovations, including the use of an economical proprietary thick epitaxial layer. This, combined with the elimination of the need for expensive wafer-bonded submounts and other process steps, enables Goldeneye to produce a unique and versatile high power LED at a fraction of the cost of existing devices.
Blue and Green EpiChip™ LEDs up to 1 mm2 have been produced. A wide range of die configurations, sizes and colors, including amber and white, are being developed. Typical output levels at 20 ma exceed 5 mW at 520 nm for 200 x 200 micron emitters. Devices from 350nm to 585nm have been demonstrated. The company expects to have selected products ready for commercial introduction by the fourth quarter of 2008.