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Proceedings Paper

Strain in semiconductor structures and devices
Author(s): David J. Dunstan; Alfred R. Adams
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Paper Abstract

We review the use of large strains both in the design an in the study of semiconductor structures and devices. Large hydrostatic pressure may be applied to samples and devices. This changes the band structure qualitatively without changing the crystal symmetry. We present some results obtained studying lasers by this technique, which reveal the loss mechanism dominating the thresholding current. A new high-pressure determination of the InGaAs/GaAs band offset ratio will be discussed. Axial strain may be applied to samples, or may be built into semiconductor epilayers by using thin layers of non-lattice matched compounds. This changes the crystal symmetry in ways that can benefit device performance. It also enables the structure to depart from the substrate lattice constant, which gives a new freedom to device design. Some recent advances in the InGaAlAs strained-layer system will be described.

Paper Details

Date Published: 1 February 1992
PDF: 20 pages
Proc. SPIE 1523, Conference on Physics and Technology of Semiconductor Devices and Integrated Circuits, (1 February 1992); doi: 10.1117/12.56995
Show Author Affiliations
David J. Dunstan, Univ. of Surrey (United Kingdom)
Alfred R. Adams, Univ. of Surrey (United Kingdom)


Published in SPIE Proceedings Vol. 1523:
Conference on Physics and Technology of Semiconductor Devices and Integrated Circuits
B. S. V. Gopalam; J. Majhi, Editor(s)

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