建立和发展了非脉冲式的直流热阴极PCVD(Plasma Chemical Vapour Deposition)方法.通过采用温度为1100℃~1500℃的热阴极以及阴极和阳极尺寸不相等配置,在大的放电电流和高的气体气压下实现了长时间稳定的辉光放电,并用这种方法制备出大尺寸高质量的金刚石厚膜,其厚膜直径为40mm~50mm,膜厚为~4.2mm,生长速率最高达到25μm/h左右,在5μm/h~10μm/h的生长速率下制出的金刚石厚膜,热导率一般在10W/K*cm~12W/K*cm.高导热金刚石厚膜用做半导体激光二极管列阵的热沉和MCM的散热绝缘基板,明显地改善了它们的性能.
参考文献
[1] | BACHMAN P K;Linz U .Diamond thin films technology 2A:diamond and DLC[J].Advanced Materials,1990,2(12):603-607. |
[2] | Suzuki K;Sawabe A;Yazuki H et al.Growth of diamond thin films by dc plasma chemical vapor depostion[J].Applied Physics Letters,1987,50(12):728-729. |
[3] | Hartmann P;Haubner R;Luk B .Deposition of thick diamond films by plused dc glow discharge CVD[J].Diamond and Related Materials,1996,5:850-856. |
[4] | Baik Y J;Lee J K;Lee W K et al.Large area deposition of thick diamond films by direct-current PA CVD[J].Thin Solid Films,1999,341:202-206. |
[5] | Jae-Kap Lee;Kwang Yong Eun;Hee-Baik Chae;Young-Joon Baik .Free-standing diamond wafers deposited by multi-cathode, direct-current, plasma-assisted chemical vapor deposition[J].Diamond and Related Materials,2000(3-6):364-367. |
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