Highly anisotropic room-temperature sub-half-micron Si reactive ion etching using fluorine only containing gases

Autor: Evangelos Gogolides, S. Grigoropoulos, A. G. Nassiopoulos
Rok vydání: 1995
Předmět:
Zdroj: Microelectronic Engineering. 27:449-452
ISSN: 0167-9317
DOI: 10.1016/0167-9317(94)00143-i
Popis: Silicon reactive ion etching using a mixture of SF"6 and CHF"3 at room temperature was investigated. The etching characteristics as a function of gas composition, rf power, pressure and masking material as well as electrode material were studied. Highly anisotropic, vertical and with smooth surface silicon pillars, lines and trenches with aspect ratios as high as 25:1 with dimensions down to 50 nm were obtained
Databáze: OpenAIRE