journal article·1991-01-01

Selective Etching of SiGe on SiGe / Si Heterostructures

G. K. Chang, T. K. Carns, S. S. Rhee, K. L. Wang

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Abstract

The chemical etchant composed of hydrofluoric acid, hydrogen peroxide, and acetic acid is studied as a selective etchant of over Si. It is found that the solution has a very high selectivity of etching over Si. Etch rates for various samples with differing mole fractions of are discussed as well as the stopping behavior of the solution on Si. Also discussed is the application of the solution to heterostructure devices, particularly the three terminal resonant tunneling transistor.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Photonic and Optical Devices · Semiconductor Quantum Structures and Devices · Semiconductor Lasers and Optical Devices

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Affiliations

Device Research Laboratory, Department of Electrical Engineering, University of California, Los Angeles, California 90024

References

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