Fabrication of ultrasmall devices on thin active GaAs membranes
Fabrication of ultrasmall devices on thin active GaAs membranes
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在薄活性 GaAs 膜上制造超小型器件
DOI:
10.1116/1.583893
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发表时间:
1987
期刊:
影响因子:
--
通讯作者:
C. Wilkinson
中科院分区:
文献类型:
--
作者:
K. Lee;J. Frost;C. Stanley;W. Patrick;W. Mackie;S. Beaumont;C. Wilkinson
We report here a method for fabricating metal–semiconductor field effect transistors (MESFET’s) with very short gates on 50 nm thick n‐doped GaAs membranes. Membrane devices can be compared to conventional devices on solid substrates in order to study the effect of a substrate on device operation. We also present a technique for making extremely fine pitch interdigital gratings. A metal grating with 24 nm center‐to‐center spacing has been fabricated on a silicon nitride membrane, the smallest pitch reported so far. Finally, we propose a lateral superlattice structure by using such a grating on a GaAs membrane.