Transistor action in novel GaAs/W/GaAs structures
作者:
G. E. Derkits,
J. P. Harbison,
J. Levkoff,
D. M. Hwang,
期刊:
Applied Physics Letters
(AIP Available online 1986)
卷期:
Volume 48,
issue 18
页码: 1220-1222
ISSN:0003-6951
年代: 1986
DOI:10.1063/1.96987
出版商: AIP
数据来源: AIP
摘要:
Structures containing thin polycrystalline layers of W embedded in essentially single crystal GaAs have been grown by molecular beam epitaxy. The W layers exhibit resistivities of 90–300 &mgr;&OHgr; cm and Schottky barriers to both substrate and overgrown GaAs. The structures can act as metal gate transistors with &bgr; of 0.2–1.4 and &agr; of 0.4–0.6. These are the first reported metal gate transistors in the III‐V materials and the first using a nonepitaxial base and laterally seeded overgrowth. The use of a nonepitaxial base represents a degree of freedom which may be usefully exploited in a wide class of materials systems and may be important for the development of future metal gate transistors, especially in III‐V materials.
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