Development of ''kink'' in the output I-V characteristics of pseudomorphic HEMT's after hot-electron accelerated testing

被引:7
作者
Meneghesso, G [1 ]
Cogliati, B [1 ]
Donzelli, G [1 ]
Sala, D [1 ]
Zanoni, E [1 ]
机构
[1] ALCATEL TELETTRA,VIMERCATE,MILANO,ITALY
来源
MICROELECTRONICS AND RELIABILITY | 1997年 / 37卷 / 10-11期
关键词
D O I
10.1016/S0026-2714(97)00138-8
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
Large decreases in the drain current in the linear and low V-ds region followed by a ''kink'' in the output I-d-V-ds characteristics have been found after hot electron stress test in AlGaAs/InGaAs/GaAs power pseudomorphic HEMT's. Decrease in the transconductance measured in linear region, increase in the drain parasitic resistance and trasconductance frequency dispersion have also been observed and attributed to the generation of electron traps in the gate-to-drain access region. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:1679 / 1682
页数:4
相关论文
共 8 条
[1]   LOW-FIELD LOW-FREQUENCY DISPERSION OF TRANSCONDUCTANCE IN GAAS-MESFETS WITH IMPLICATIONS FOR OTHER RATE-DEPENDENT ANOMALIES [J].
LADBROOKE, PH ;
BLIGHT, SR .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 1988, 35 (03) :257-267
[2]  
LEE K, 1984, IEEE T ELECTRON DEV, V31, P1394
[3]   Trapped charge modulation: A new cause of instability in AlGaAs/InGaAs pseudomorphic HEMT's [J].
Meneghesso, G ;
Canali, C ;
Cova, P ;
DeBortoli, E ;
Zanoni, E .
IEEE ELECTRON DEVICE LETTERS, 1996, 17 (05) :232-234
[4]   Evidence of interface trap creation by hot-electrons in AlGaAs/GaAs high electron mobility transistors [J].
Meneghesso, G ;
Paccagnella, A ;
Haddab, Y ;
Canali, C ;
Zanoni, E .
APPLIED PHYSICS LETTERS, 1996, 69 (10) :1411-1413
[5]   Drain current DLTS analysis of recoverable and permanent degradation effects in AlGaAs/GaAs and AlGaAs/InGaAs HEMT'S [J].
Meneghesso, G ;
Haddab, Y ;
Perrino, N ;
Canali, C ;
Zanoni, E .
MICROELECTRONICS AND RELIABILITY, 1996, 36 (11-12) :1895-1898
[6]   NOISE IN ALGAAS/INGAAS/GAAS PSEUDOMORPHIC HEMTS FROM 10-HZ TO 18-GHZ [J].
PLANA, R ;
ESCOTTE, L ;
LLOPIS, O ;
AMINE, H ;
PARRA, T ;
GAYRAL, M ;
GRAFFEUIL, J .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 1993, 40 (05) :852-858
[7]  
SALA D, 1995, P ESREF 95, P435
[8]  
TEDESCO C, 1993, IEEE T EL DEV, V40