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Low‐noise GaAs field‐effect transistors prepared by molecular beam epitaxy

 

作者: M. Omori,   T. J. Drummond,   H. Morkoc¸,  

 

期刊: Applied Physics Letters  (AIP Available online 1981)
卷期: Volume 39, issue 7  

页码: 566-569

 

ISSN:0003-6951

 

年代: 1981

 

DOI:10.1063/1.92796

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The noise performance of ’’T’’ shaped Ti/W/Au gate GaAs Schottky‐barrier field‐effect transistors (FET’s) fabricated on channel layers grown by molecular beam epitaxy (MBE) is reported. The nominal gate length was about 0.7 &mgr;m with a total gate width of 250 &mgr;m. Typical noise figures and the associated gains at room temperature were 1.2 and 14 dB at 4 GHz, and 1.9 and 8.5 dB at 12 GHz. To our knowledge, these are the best results reported to date by MBE. These preliminary results, while not reaching the state of the art, do show the promise of MBE for high‐quality GaAs FET’s.

 

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