NONALLOYED OHMIC CONTACTS FOR P+-TYPE INGAAS BASE LAYER IN HBTS

被引:17
作者
RESSEL, P [1 ]
VOGEL, K [1 ]
FRITZSCHE, D [1 ]
MAUSE, K [1 ]
机构
[1] FORSCHUNGSINST DEUTSCH BUNDESPOST TELEKOM,W-6100 DARMSTADT,GERMANY
关键词
SEMICONDUCTOR DEVICES AND MATERIALS; INDIUM COMPOUNDS; OHMIC CONTACTS;
D O I
10.1049/el:19921437
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
Two new metallisation systems, Pd/Pt and Cr/Au, for nonalloyed ohmic contacts on p+-InGaAs have been compared with the Ti/Pt contact. The observed strong dependence of the contact resistivity on the metal is related to its work function. The lowest resistivities are achieved with Pd/Pt, e.g. 1.2 x 10(-6) OMEGAcm2 for p = 1.7 x 10(19) cm-3.
引用
收藏
页码:2237 / 2238
页数:2
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