HETEROSTRUCTURE BIPOLAR-TRANSISTOR EMPLOYING CARBON-DOPED BASE GROWN WITH TRIMETHYL-GA AND ARSINE

被引:10
作者
KUO, TY [1 ]
CHIU, TH [1 ]
CUNNINGHAM, JE [1 ]
GOOSSEN, KW [1 ]
FONSTAD, CG [1 ]
REN, F [1 ]
机构
[1] MIT,DEPT ELECT ENGN,CAMBRIDGE,MA 02139
关键词
Bipolar devices; Doping; Semiconductor devices and materials;
D O I
10.1049/el:19900812
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 investigation of an AlGaAs/GaAs HBT in in which a heavily carbon doped base is grown by chemical beam epitaxy using trimethyl-Ga is reported. A planar technique which reduces surface recombination has been employed for selectively contacting the base region. A base width of 1000 A and a high doping level of 7 × 1019cm−3 is used. The sheet resistance of the base is less than 100Ω/□. This transistor has a maximum current gain of 25 at a current density of 1.3 × 103 A/cm2. © 1990, The Institution of Electrical Engineers. All rights reserved.
引用
收藏
页码:1260 / 1262
页数:3
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