EFFECTS OF EMITTER-BASE CONTACT SPACING ON THE CURRENT GAIN IN HETEROJUNCTION BIPOLAR-TRANSISTORS

被引:11
作者
LIU, W
HARRIS, JS
机构
[1] Solid State Laboratory, Stanford University, CA, 94305
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷 / 08期
关键词
HBT; CURRENT GAIN; EMITTER-BASE CONTACT SPACING;
D O I
10.1143/JJAP.31.2349
中图分类号
O59 [应用物理学];
学科分类号
摘要
The minimum emitter-base contact spacing necessary to prevent current gain degradation is discussed for Npn heterojunction bipolar transistors designed for high-speed applications. Theoretical calculations are performed for various base doping levels, base thicknesses, and emitter widths. These results indicate that the minimum spacing for different design parameters varies between 400 angstrom and 1300 angstrom.
引用
收藏
页码:2349 / 2351
页数:3
相关论文
共 12 条
[1]   HETEROJUNCTION BIPOLAR-TRANSISTORS FOR MICROWAVE AND MILLIMETER-WAVE INTEGRATED-CIRCUITS [J].
ASBECK, PM ;
CHANG, MF ;
WANG, KC ;
MILLER, DL ;
SULLIVAN, GJ ;
SHENG, NH ;
SOVERO, E ;
HIGGINS, JA .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 1987, 34 (12) :2571-2579
[2]   RECOMBINATION AT SEMICONDUCTOR SURFACES AND INTERFACES [J].
ASPNES, DE .
SURFACE SCIENCE, 1983, 132 (1-3) :406-421
[3]   EMITTER SIZE EFFECT ON CURRENT GAIN IN FULLY SELF-ALIGNED ALGAAS/GAAS HBTS WITH ALGAAS SURFACE PASSIVATION LAYER [J].
HAYAMA, N ;
HONJO, K .
IEEE ELECTRON DEVICE LETTERS, 1990, 11 (09) :388-390
[4]   THEORETICAL CURRENT GAIN OF A CYLINDRICAL MESA TRANSISTOR [J].
KENNEDY, DP ;
MURLEY, PC .
SOLID-STATE ELECTRONICS, 1961, 3 (3-4) :215-225
[5]   EFFECT OF EMITTER-BASE SPACING ON THE CURRENT GAIN OF ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS [J].
LEE, WS ;
UEDA, D ;
MA, T ;
PAO, YC ;
HARRIS, JS .
IEEE ELECTRON DEVICE LETTERS, 1989, 10 (05) :200-202
[6]   COMPARISON OF THE EFFECTS OF SURFACE PASSIVATION AND BASE QUASI-ELECTRIC FIELDS ON THE CURRENT GAIN OF ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS GROWN ON GAAS AND SI-SUBSTRATES [J].
LIU, W ;
COSTA, D ;
HARRIS, J .
APPLIED PHYSICS LETTERS, 1991, 59 (06) :691-693
[7]   THEORETICAL COMPARISON OF BASE BULK RECOMBINATION CURRENT AND SURFACE RECOMBINATION CURRENT OF A MESA ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTOR [J].
LIU, WU ;
COSTA, D ;
HARRIS, JS .
SOLID-STATE ELECTRONICS, 1991, 34 (10) :1119-1123
[8]   SUB-MICRON SCALING OF ALGAAS/GAAS SELF-ALIGNED THIN EMITTER HETEROJUNCTION BIPOLAR-TRANSISTORS (SATE-HBT) WITH CURRENT GAIN INDEPENDENT OF EMITTER AREA [J].
MALIK, RJ ;
LUNARDI, LM ;
RYAN, RW ;
SHUNK, SC ;
FEUER, MD .
ELECTRONICS LETTERS, 1989, 25 (17) :1175-1177
[9]  
MCKELVEY JP, 1966, SOLID STATE SEMICOND, P350
[10]   SELF-ALIGNED ALGAAS/GAAS HBT WITH LOW EMITTER RESISTANCE UTILIZING INGAAS CAP LAYER [J].
NAGATA, K ;
NAKAJIMA, O ;
YAMAUCHI, Y ;
NITTONO, T ;
ITO, H ;
ISHIBASHI, T .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 1988, 35 (01) :2-7