Characterization of semiconductor sub-micron gratings: Is there an alternative to scanning electron microscopy?

被引:2
|
作者
Bonard, JM
Ganiere, JD
MorierGenoud, F
Achtenhagen, M
机构
[1] Inst. de Micro- et Optoelectronique, Département de Physique, Ecl. Polytech. Federale de Lausanne
关键词
D O I
10.1088/0268-1242/11/3/021
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The characterization of sub-micron gratings is usually performed on scanning electron microscopes, although the dimensions of the features often make the observations difficult. We report here on a new method applicable to III-V and II-VI semiconductors: we use transmission electron microscopy on wedge-shaped samples oriented along a [111] zone axis. Grating parameters can be obtained with a precision of 1 nm, along with information on the shape and the regularity of the ridge profile, the surface quality as well as the local chemical composition.
引用
收藏
页码:410 / 414
页数:5
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