ULTRA LOW RESISTANCE OHMIC CONTACTS TO N-GAAS

被引:59
作者
STALL, R [1 ]
WOOD, CEC [1 ]
BOARD, K [1 ]
EASTMAN, LF [1 ]
机构
[1] UNIV WALES UNIV COLL SWANSEA,DEPT ELECT & ELECTR ENGN,SWANSEA SA2 8PP,W GLAMORGAN,WALES
关键词
Gallium arsenide; Ohmic contacts;
D O I
10.1049/el:19790570
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
Nonalloyed ohmic contacts to n-GaAs with contact resistances (ρc) below 1.0 × 10−7 Ω cm2 have been obtained using a Ge/GaAs heterojunction system. Metals are evaporated on heavily arsenic-doped germanium (Ge) layers grown on GaAs. Low values of ρc result from the low Schottky barrier height (≈ 0.50 eV) and the high doping levels obtainable for n-Ge(≈ 1020cm−3). © 1979, The Institution of Electrical Engineers. All rights reserved.
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页码:800 / 801
页数:2
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