Optimizing the reactive ion etching ofp‐InGaP with CH4/H2by a two‐level fractional factorial design process
作者:
R. H. Chan,
K. Y. Cheng,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1996)
卷期:
Volume 14,
issue 5
页码: 3219-3225
ISSN:1071-1023
年代: 1996
DOI:10.1116/1.588810
出版商: American Vacuum Society
关键词: (In,Ga)P;GaAs
数据来源: AIP
摘要:
The reactive ion etching ofp‐InGaP andp‐GaAs using CH4/H2was examined through design of experiment techniques. The etch rate of InGaP and GaAs, the etch rate ratio of InGaP over GaAs, and the dc bias were optimized by fractional factorial design as a function of total gas flow rate, methane composition, total pressure, and rf power. It was found that the rf power and the total chamber pressure were the most significant parameters in the reactive ion etching process. Models were created to describe the change of each response over a range of etching parameters.
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