High depth-width ratio deep sub-micrometer, nanometer metal structure making process based on self-supporting thin film
A self-supporting thin film, deep submicron technology, applied in nanostructure manufacturing, photoengraving process of pattern surface, nanotechnology, etc. It is difficult to achieve and other problems to achieve the effect of strong practical value
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[0033] 1. If diagram 2-1 As shown, firstly, a thin chromium and thin gold layer 203 is deposited on the front surface of the п-shaped self-supporting film. The thin chromium and thin gold layer 203 can be obtained by electron beam evaporation, with a total thickness of 10-30 nm. The п-shaped self-supporting film is composed of a silicon nitride film 101 and a silicon wafer 102, the bottom leg is a silicon nitride film 101, the middle leg is a silicon wafer 102, and the upper end is a silicon nitride film 101.
[0034] 2. If Figure 2-2 As shown, the electron beam glue 204 is thrown on the surface of the thin chrome and thin gold layer 203. The model of the electron beam glue 204 is SAL601-ER7 produced by Japan Shipley Company. , the pre-baking temperature is 105°C, and the pre-baking time is 2 minutes.
[0035] 3. Figure 2-3 As shown, the electron beam glue 204 is subjected to electron beam exposure, the dose is 35 microcoulombs, and then the electron beam glue 204 is pos...
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