Method for porosifying a material and semiconductor structure
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United States of America Patent
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May 16, 2023
Grant Date -
Jul 16, 2020
app pub date -
Sep 27, 2017
filing date -
Sep 27, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for porosifying a Ill-nitride material in a semiconductor structure is provided, the semiconductor structure comprising a sub-surface structure of a first Ill-nitride material, having a charge carrier density greater than 5×1017 cm−3, beneath a surface layer of a second Ill-nitride material, having a charge carrier density of between 1×1014 cm−3 and 1×1017 cm−3. The method comprises the steps of exposing the surface layer to an electrolyte, and applying a potential difference between the first Ill-nitride material and the electrolyte, so that the sub-surface structure is porosified by electrochemical etching, while the surface layer is not porosified. A semiconductor structure and uses thereof are further provided.
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International Classification(s)
- 2017 Application Filing Year
- H01L Class
- 30754 Applications Filed
- 25260 Patents Issued To-Date
- 82.14 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H01L Class
- 0 % this patent is cited more than
- 2 Age
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