Process for prapring vanadium oxide film
A technology of vanadium oxide film and oxygen, which is applied in the field of information science and technology, can solve the problems of vanadium oxide film damage, reduce the phase transition characteristics of vanadium oxide film, and reduce the repeatability of the method.
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Embodiment 1
[0030] Example 1: (1) Purpose of the method: to prepare a vanadium oxide thin film with a high temperature coefficient of resistance, which is used as a heat-sensitive thin film material for an uncooled infrared detector. (2) Substrate material: Si (3) Preparation process: ①Clean the substrate. Use standard semiconductor cleaning methods to clean the substrate, clean the substrate and dry it for later use. ② Sputtering vanadium film. Open the vacuum chamber, put in the Si substrate, first draw a low vacuum, and then open the high valve to draw a high vacuum. After the high vacuum reaches the predetermined value, it is filled with argon to reach the working pressure. Turn on the parallel source, first clean the Si substrate with a parallel ion beam, then turn off the parallel source, turn on the focus source, and clean the rake material. After cleaning, open the baffle and start sputtering coating. The method parameter list of sputter coating is shown in Table 2:
[0031] ...
Embodiment 2
[0034] Embodiment 2: (1) purpose of the method: to prepare a vanadium oxide thin film with high phase change characteristics, used for phase change micro-optical switches (2) substrate material: Si 3 N 4 (3) Preparation process: The preparation process is basically the same as that of Example 1, but the method parameters are slightly different. Table 4 and Table 5 are respectively the method parameter table of this implementation example
[0035] background vacuum
[0036] The important parameter of the phase-change micro-optical switch is its phase-change characteristic, and the better the phase-change characteristic, the better the characteristic of the vanadium oxide film. Using this method in Si 3 N 4 The change of resistivity of the vanadium oxide thin film prepared on the substrate can reach 3 orders of magnitude before and after the phase transition, and the change of infrared spectral transmittance can reach 60% before and after the phase transition, which...
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