Abstract
Highly anisotropic ECR etching of sub-half-micron features in GaAs and AlGaAs using a Cl2-CH4 mixture is reported. Etch depths greater than 1 μm with aspect ratios nearing 5:1 were achieved while maintaining vertical sidewalls, sharp transitions and smooth etched surface.
Original language | English (US) |
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Pages (from-to) | 383-386 |
Number of pages | 4 |
Journal | Microelectronic Engineering |
Volume | 41-42 |
DOIs | |
State | Published - 1998 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering