LOW-RATE PLASMA OXIDATION OF SI IN A DILUTE OXYGEN HELIUM PLASMA FOR LOW-TEMPERATURE GATE QUALITY SI/SIO2 INTERFACES

被引:52
作者
BRIGHT, AA
BATEY, J
TIERNEY, E
机构
关键词
D O I
10.1063/1.104547
中图分类号
O59 [应用物理学];
学科分类号
摘要
Low-rate plasma oxidation of Si, involving a small oxygen concentration in a low-power He plasma at low processing temperatures (approximately 350-degrees-C), is shown capable of producing excellent interface properties, good uniformity, and low defect density. As an interfacial layer for plasma-enhanced chemical vapor deposited (PECVD) SiO2 films, the plasma oxide is key to achieving high quality composite (plasma oxide/PECVD) oxide structures, which essentially match the electrical quality of thermal oxides. Such low-temperature oxide films are suitable for critical device applications, such as the gate oxide in metal-oxide-semiconductor devices and the base passivation layer in advanced bipolar devices.
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页码:619 / 621
页数:3
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