Plasma damage in p-GaN

被引:30
作者
Cao, XA [1 ]
Zhang, AP
Dang, GT
Ren, F
Pearton, SJ
Van Hove, JM
Hickman, RA
Shul, RJ
Zhang, L
机构
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
[2] Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA
[3] Blue Lotus Micro Devices, Eden Prairie, MN 55344 USA
[4] Sandia Natl Labs, Albuquerque, NM 87185 USA
基金
美国国家科学基金会;
关键词
GaN; plasma; damage; ICP; diodes;
D O I
10.1007/s11664-000-0059-7
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The effect of Inductively Coupled Plasma H-2 or Ar discharges on the breakdown voltage of p-GaN diodes was measured over a range of ion energies and fluxes. The main effect of plasma exposure is a decrease in net acceptor concentration to depths of 400-550 Angstrom. At high ion fluxes or energies there can be type conversion of the initially p-GaN surface. Post etch annealing at 900 degrees C restores the initial conductivity.
引用
收藏
页码:256 / 261
页数:6
相关论文
共 26 条
[1]   Depth and thermal stability of dry etch damage in GaN Schottky diodes [J].
Cao, XA ;
Cho, H ;
Pearton, SJ ;
Dang, GT ;
Zhang, AP ;
Ren, F ;
Shul, RJ ;
Zhang, L ;
Hickman, R ;
Van Hove, JM .
APPLIED PHYSICS LETTERS, 1999, 75 (02) :232-234
[2]   Electrical and optical changes in the near surface of reactively ion etched n-GaN [J].
Chen, JY ;
Pan, CJ ;
Chi, GC .
SOLID-STATE ELECTRONICS, 1999, 43 (03) :649-652
[3]  
Eddy CR, 1996, MATER RES SOC SYMP P, V395, P745
[4]   Growth and fabrication of GaN/AlGaN heterojunction bipolar transistor [J].
Han, J ;
Baca, AG ;
Shul, RJ ;
Willison, CG ;
Zhang, L ;
Ren, F ;
Zhang, AP ;
Dang, GT ;
Donovan, SM ;
Cao, XA ;
Cho, H ;
Jung, KB ;
Abernathy, CR ;
Pearton, SJ ;
Wilson, RG .
APPLIED PHYSICS LETTERS, 1999, 74 (18) :2702-2704
[5]   Wet etching of (0001) GaN/Al2O3 grown by MOVPE [J].
Kim, BJ ;
Lee, JW ;
Park, HS ;
Park, Y ;
Kim, TI .
JOURNAL OF ELECTRONIC MATERIALS, 1998, 27 (05) :L32-L34
[6]   Effect of surface treatment by KOH solution on ohmic contact formation of p-type GaN [J].
Lee, JL ;
Kim, JK ;
Lee, JW ;
Park, YJ ;
Kim, T .
SOLID-STATE ELECTRONICS, 1999, 43 (02) :435-438
[7]  
MCCARTHY LS, 1998, 25 INT S COMP SEM NA
[8]  
Pearton S. J., 1990, Material Science Reports, V4, P313, DOI 10.1016/0920-2307(90)90002-K
[9]   DRY ETCH DAMAGE IN INN, INGAN, AND INALN [J].
PEARTON, SJ ;
LEE, JW ;
MACKENZIE, JD ;
ABERNATHY, CR ;
SHUL, RJ .
APPLIED PHYSICS LETTERS, 1995, 67 (16) :2329-2331
[10]   REACTIVE ION ETCHING OF III-V SEMICONDUCTORS [J].
PEARTON, SJ .
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1994, 8 (14) :1781-1786