|Title:||Small GaN-based light-emitting diodes with a single electrode pad fabricated on a sapphire substrate|
|Authors:||Lee, Y. C.|
Lee, C. E.
Lu, T. C.
Kuo, H. C.
Wang, S. C.
Department of Photonics
|Abstract:||Small-scale GaN-based LEDs with a single electrode pad enjoying such properties as low cost, low series resistance, high efficiency and high yield were fabricated on a sapphire substrate by a novel and simple method. The devices present not only lower series resistance but higher light output power due to a specific n-contact design and better current spreading properties. Furthermore, higher ESD resistance (> -800 V at machine-mode operation) was demonstrated. The single-pad electrode of small-scale GaN-based LEDs has a chip size of 180 x 180 mu m(2), and showed a lower forward voltage of 3.15 V and 53.4% output power enhancement at 20 mA.|
|Journal:||SEMICONDUCTOR SCIENCE AND TECHNOLOGY|
|Appears in Collections:||Articles|
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