首页> 外文期刊>Journal of Crystal Growth >Low temperature Si homo-epitaxy by reduced pressure chemical vapor deposition using dichlorosilane, silane and trisilane
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Low temperature Si homo-epitaxy by reduced pressure chemical vapor deposition using dichlorosilane, silane and trisilane

机译:通过使用二氯硅烷,硅烷和三硅烷的减压化学气相沉积法实现低温Si同质外延

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摘要

Dichlorosilane (DCS), silane and trisilane have been investigated as Si precursors for low temperature (< 700 ℃) Si reduced pressure chemical vapor deposition. DCS and silane are limited to growth temperatures higher than 600-650 and 500 ℃, respectively. At lower temperatures, absence of either Cl or H desorption from the surface impedes Si growth with acceptable growth rate (> 5 A/min). Trisilane permits the growth of Si at lower temperatures below 350 ℃ due to a specific growth mechanism enhancing H desorption. Layers grown at temperatures lower than 500 ℃ are defective, irrespective of the carrier gas, pressure and precursor flow used.
机译:已经研究了二氯硅烷(DCS),硅烷和三硅烷作为低温(<700℃)硅减压化学气相沉积的硅前驱体。 DCS和硅烷的生长温度分别限制在600-650和500℃以上。在较低的温度下,表面不存在Cl或H脱附会阻碍Si以可接受的生长速率(> 5 A / min)生长。甲硅烷允许在低于350℃的较低温度下生长Si,这是由于特定的生长机制增强了H的解吸。在低于500℃的温度下生长的层是有缺陷的,与所用的载气,压力和前体流量无关。

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