Title : 
Improved Optical and ESD Characteristics for GaN-Based LEDs With an 
 
  Layer
 
         
        
            Author : 
Chiang, T.H. ; Chiou, Y.Z. ; Chang, S.J. ; Wang, C.K. ; Ko, T.K. ; Lin, T.K. ; Chiu, C.J. ; Chang, S.P.
         
        
            Author_Institution : 
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
         
        
        
        
        
            fDate : 
3/1/2011 12:00:00 AM
         
        
        
        
            Abstract : 
Nitride-based light-emitting diodes (LEDs) with an n- -GaN layer are proposed and fabricated. By providing a larger series resistance in the vertical direction, it was found that the n--GaN layer could enhance LED output intensity due to the enhanced current spreading. It was also found that LEDs with n--GaN layer thicknesses of 0.15, 0.2, and 0.25 μm could endure electrostatic discharge surges up to -1200, - 1800, and -3000 V, respectively.
         
        
            Keywords : 
III-V semiconductors; electrostatic discharge; gallium compounds; light emitting diodes; wide band gap semiconductors; ESD characteristics; GaN; LED output intensity; current spreading; electrostatic discharge surge; nitride-based light-emitting diodes; optical characteristics; series resistance; size 0.15 mum; size 0.2 mum; size 0.25 mum; $hbox{n}^{-}hbox{-GaN}$  layer; Current spreading; electrostatic discharge (ESD); light-emitting diode (LED);
         
        
        
            Journal_Title : 
Device and Materials Reliability, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TDMR.2010.2078511