CHEMICAL TREATMENT EFFECTS ON SI SURFACES IN SC2 SOLUTIONS STUDIED BY SPECTROSCOPIC ELLIPSOMETRY

被引:13
作者
KOBAYASHI, K
SUSUKI, T
ADACHI, S
机构
[1] Department of Electronic Engineering, Gunma University, Kiryu-shi, Gunma
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1994年 / 33卷 / 1A期
关键词
SI WAFER; SC2; CLEANING; RCA ETCHANT; CHEMICAL OXIDE; SPECTROSCOPIC ELLIPSOMETRY;
D O I
10.1143/JJAP.33.L15
中图分类号
O59 [应用物理学];
学科分类号
摘要
Si surfaces chemically treated in HCl:H2O2:H2O=X:1:6 [X=1 (SC2) and 0] at 80-degrees-C have been studied using spectroscopic ellipsometry (SE). The SE data clearly indicate that both the X=1 and 0 solutions result in surface chemical oxidation. The chemical oxidation occurs immediately upon immersion of the samples in the solutions. The thickness of chemical oxide shows a saturated value of approximately 9.5 +/- 1 (X=1) and approximately 11.5 +/- 1 angstrom (X=0) against immersion time t.
引用
收藏
页码:L15 / L17
页数:3
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