PRODUCTION OF DIATOMIC AND TRIATOMIC MOLECULAR NEGATIVE-IONS OF GOLD AND COPPER BY SPUTTERING

被引：4

作者：

WADA, M ^{[1
]}

TSUDA, H ^{[1
]}

SASAO, M ^{[1
]}

机构：

[1] NATL INST FUS SCI, NAGOYA 46401, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 12B期

关键词：

ION SOURCE; AU-; CU-; WORK FUNCTION; AFFINITY;

D O I：

10.1143/JJAP.30.L2133

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Monoatomic, diatomic and triatomic negative ions of Au and Cu produced on a surface of the sputtering target of a self-extraction negative ion source were measured. The bias potential applied to the target was varied from 100 to 500 V with respect to a Cs-introduced Ar plasma. The ratios of the polyatomic negative ions to the monoatomic negative ions increased in accordance with the increasing energy of the incident ions, and decreased as the amount of Cs in the discharge was increased. The atomic negative ion fraction can be maintained at a value higher than 90% by controlling these parameters.

引用

页码：L2133 / L2135

页数：3