Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having schottky gate
Reexamination Certificate
2011-03-29
2011-03-29
Ghyka, Alexander G (Department: 2812)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having schottky gate
C438S022000, C438S057000, C438S285000, C438S479000, C257SE21116
Reexamination Certificate
active
07915104
ABSTRACT:
The present disclosure describes methods for preparing semiconductor structures, comprising forming a Ge1-ySnybuffer layer on a semiconductor substrate and forming a tensile strained Ge layer on the Ge1-ySnybuffer layer using an admixture of (GeH3)2CH2and Ge2H6in a ratio of between 1:10 and 1:30. The disclosure further provides semiconductor structures having highly strained Ge epilayers (e.g., between about 0.15% and 0.45%) as well as compositions comprising an admixture of (GeH3)2CH2and Ge2H6in a ratio of between about 1:10 and 1:30. The methods herein provide, and the semiconductor structure provide, Ge epilayers having high strain levels which can be useful in semiconductor devices for example, in optical fiber communications devices.
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Fang Yan-Yan
Kouvetakis John
Ghyka Alexander G
McDonnell Boehnen & Hulbert & Berghoff LLP
Nikmanesh Seahvosh J
The Arizona Board of Regents, a body corporate of the state of A
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