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- W2375154482 abstract "The CNx films were grown on Si (001) substrates using r.f. magnetron sputtering pyrolytic graphite in pure N2. During the deposition, substrate temperature is kept a constant of 350℃ (Ts). The r.f. power and PN2 were fixed at 300W and 05Pa, respectively. Only substrate bias (Vb) is varied from 0V to -150V. The effect of substrate bias on adhesion and roughness of CNx film is discussed. The optimized condition for growing CNx films with the smooth and good adhesion on Si (001) is desired. Atomic force microscopy (AFM) is used to characterize the surface morphology and roughness of the CNx films deposited on the Si (001) substrate. The scratch test was utilized for measurement of coating adhesion of the CNx films on Si (001). The AFM and scratch test results show that the adhesion and roughness of CNx films on Si (001) are highly dependent on substrate bias. It can be found that increased substrate bias causes a rougher surface of CNx films, and correspondingly the minimum value of rms roughness (08nm) was obtained while substrate bias increase up to -100V. But when substrate bias increases continuously from -100V to -150V, the rms roughness of the films is enhanced. It is similar to the change of adhesion of the films with substrate bias. The films grown at Vb=-100V obtain better adhesion to Si substrate than that grown at other substrate bias value. The change trend of roughness and adhesion of films with substrate bias is related to the ion energy reaching to the film surface during deposition. It can be concluded that the adhesion and smoothness of CNx films are highly dependent on the energy of the ions reaching on the surface of the films, whereas substrate bias can control this energy, consequently determine the final quality of the deposited films. Thus an appropriate substrate bias is favorable to deposit good quality films by controlling properly the ion energy reaching on the surface of the films. For the deposition of CNx films at Ts=350℃ using r.f. magnetron sputtering, Vb=-100V is optimal condition for obtaining the quite smooth CNx thin films with good adhesion on Si (001) substrate." @default.
- W2375154482 created "2016-06-24" @default.
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- W2375154482 date "2003-01-01" @default.
- W2375154482 modified "2023-09-24" @default.
- W2375154482 title "Relations of Substrate Bias and Adhesion, Roughness of Carbon Nitride Films Synthesized by Magnetron Sputtering" @default.
- W2375154482 hasPublicationYear "2003" @default.
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