
Non-Bosch Scallop-Free Etching
Nanoscale silicon etching with line and space dimensions of 150/50 nm using a non-Bosch process. This approach achieves a 5:1 aspect ratio in fine feature patterning. While conventional Bosch processes inherently create sidewall scallops, this non-Bosch continuous etching produces completely scallop-free sidewalls.
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