Positive flatband voltage shift in MOS capacitors on n-type GaN

被引:54
作者
Matocha, K [1 ]
Chow, TP [1 ]
Gutmann, RJ [1 ]
机构
[1] Rensselaer Polytech Inst, Ctr Integrated Elect, Troy, NY 12180 USA
基金
美国国家科学基金会;
关键词
gallium nitride; MOS capacitors; polarization; pyroelectricity; pyroelectric devices;
D O I
10.1109/55.981312
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
GaN MOS capacitors were fabricated using silicon dioxide deposited by low-pressure chemical vapor deposition oxide at 900 degreesC. The MOS capacitor flatband voltage shift versus temperature was used to determine a pyroelectric charge coefficient of 3.7 x 10(9) q/cm(2)-K, corresponding to a pyroelectric voltage coefficient of 7.0 X 10(4) V/m-K.
引用
收藏
页码:79 / 81
页数:3
相关论文
共 14 条
[1]   Trapping effects and microwave power performance in AlGaN/GaN HEMTs [J].
Binari, SC ;
Ikossi, K ;
Roussos, JA ;
Kruppa, W ;
Park, D ;
Dietrich, HB ;
Koleske, DD ;
Wickenden, AE ;
Henry, RL .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (03) :465-471
[2]   Fabrication and characterization of GaN FETs [J].
Binari, SC ;
Kruppa, W ;
Dietrich, HB ;
Kelner, G ;
Wickenden, AE ;
Freitas, JA .
SOLID-STATE ELECTRONICS, 1997, 41 (10) :1549-1554
[3]   Elastic strain relaxation and piezoeffect in GaN-AlN, GaN-AlGaN and GaN-InGaN superlattices [J].
Bykhovski, AD ;
Gelmont, BL ;
Shur, MS .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (09) :6332-6338
[4]   Pyroelectricity in gallium nitride thin films [J].
Bykhovski, AD ;
Kaminski, VV ;
Shur, MS ;
Chen, QC ;
Khan, MA .
APPLIED PHYSICS LETTERS, 1996, 69 (21) :3254-3256
[5]   Undoped AlGaN/GaN HEMTs for microwave power amplification [J].
Eastman, LF ;
Tilak, V ;
Smart, J ;
Green, BM ;
Chumbes, EM ;
Dimitrov, R ;
Kim, H ;
Ambacher, OS ;
Weimann, N ;
Prunty, T ;
Murphy, M ;
Schaff, WJ ;
Shealy, JR .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (03) :479-485
[6]   Pyroelectric properties of AlN [J].
Fuflyigin, V ;
Salley, E ;
Osinsky, A ;
Norris, P .
APPLIED PHYSICS LETTERS, 2000, 77 (19) :3075-3077
[7]   High-quality oxide/nitride/oxide gate insulator for GaN MIS structures [J].
Gaffey, B ;
Guido, LJ ;
Wang, XW ;
Ma, TP .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (03) :458-464
[8]   Polarization effects, surface states, and the source of electrons in AlGaN/GaN heterostructure field effect transistors [J].
Ibbetson, JP ;
Fini, PT ;
Ness, KD ;
DenBaars, SP ;
Speck, JS ;
Mishra, UK .
APPLIED PHYSICS LETTERS, 2000, 77 (02) :250-252
[9]  
MATOCHA K, 2001, INT C SIL CARB REL M
[10]  
MENEGHESSO G, IEDM 2000, P389