Negative-Voltage Electrostatic Discharge Characteristics of Blue Light-Emitting Diodes Using an Extended n-Electrode onto Plasma Treated p-GaN

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概要

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• We developed light-emitting diodes (LEDs) having a shunt diode in order to improve their negative-voltage electrostatic discharge (ESD) characteristics. To make the discharge path, the n-electrode of the LED was extended over a p-GaN surface. The leakage current at reverse bias owing to the shunt diode can be significantly reduced via plasma treatment on the p-GaN surface prior to the extended n-electrode. In this design, the finger type extended n-electrode was implemented to minimize the light absorption by the n-electrode. The negative-voltage ESD threshold of the LED with the shunt diode significantly increased from 300--500 to 3000 V.

• 2011-07-25

著者

• Baek Jong

  Korea Photonics Technology Institute

• OH Hwa

  Korea Photonics Technology Institute (KOPTI)

• PARK Tae-Young

  School of Materials Science and Engineering, Gwangju Institute of Science and Technology

• KIM Sang-Mook

  Korea Photonics Technology Institute (KOPTI)

• JUNG Gun

  School of Materials Science and Engineering, Gwangju Institute of Science and Technology

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