首页> 外文期刊>Applied optics >IN SITU THICKNESS CONTROL DURING PLASMA DEPOSITION OF HYDROGENATED AMORPHOUS SILICON FILMS BY TIME-RESOLVED MICROWAVE CONDUCTIVITY MEASUREMENTS
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IN SITU THICKNESS CONTROL DURING PLASMA DEPOSITION OF HYDROGENATED AMORPHOUS SILICON FILMS BY TIME-RESOLVED MICROWAVE CONDUCTIVITY MEASUREMENTS

机译:用时间分辨微波电导率法测量氢化非晶硅膜的等离子体沉积原位厚度

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Transient photoconductivity measurements have been performed in situ during plasma-enhanced chemical vapor deposition of amorphous hydrogenated silicon by a contactless method that uses the change of the microwave reflection after laser pulse illumination. Through the use of the interference pattern of the amplitude of the transients of microwave reflection during the layer growth, the actual thickness of the amorphous him can be determined. In the case of crystalline silicon substrates, the change in the light absorption in the substrate modified by the growth of the amorphous layer is measured directly. An example of the optimization of antireflective layers on crystalline silicon substrates is shown. A good agreement is found between the experimental data and calculations of optical reflection and transmission on the multilayer structures. [References: 13]
机译:瞬态光电导率测量是在非晶态氢化硅的等离子增强化学气相沉积过程中通过非接触式方法在原位进行的,该方法采用了激光脉冲照射后微波反射的变化。通过使用在层生长期间微波反射的瞬变幅度的干涉图案,可以确定非晶态的实际厚度。在晶体硅衬底的情况下,直接测量由非晶层的生长改性的衬底中的光吸收的变化。示出了优化晶体硅衬底上的抗反射层的示例。在实验数据与多层结构上的光反射和透射的计算之间找到了很好的一致性。 [参考:13]

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