感应耦合等离子体刻蚀p-GaN的表面特性 |
| |
引用本文: | 吕 玲,龚 欣,郝 跃. 感应耦合等离子体刻蚀p-GaN的表面特性[J]. 中国物理 B, 2008, 17(2): 1128-1132 |
| |
作者姓名: | 吕 玲 龚 欣 郝 跃 |
| |
作者单位: | 西安电子科技大学微电子学院,宽禁带半导体材料与器件教育部重点实验室,西安 710071;西安电子科技大学微电子学院,宽禁带半导体材料与器件教育部重点实验室,西安 710071;西安电子科技大学微电子学院,宽禁带半导体材料与器件教育部重点实验室,西安 710071 |
| |
基金项目: | 国家重点基础研究发展计划(973)项目(批准号:51327020301)资助的课题. |
| |
摘 要: | 研究了p-GaN材料经感应耦合等离子体(ICP)刻蚀后的表面特性,并用不同的方法对刻蚀表面进行处理.利用原子力显微镜(AFM)和X射线光电子能谱(XPS)对刻蚀样品进行分析,并在样品表面制作Ni/Au电极,进行欧姆接触特性的测试.实验结果表明了NaOH溶液处理表面对改善材料表面和欧姆接触特性是比较有效的.
|
关 键 词: | GaN, 感应耦合等离子刻蚀, 表面处理, 欧姆接触 |
Properties of p-type GaN etched by inductively coupled plasma and their improvement |
| |
Abstract: | Our preseut research was focused on the surface properies of the p-type gallium nitride (p-GaN) etched by inductively coupled plasma (ICP). Different methods were used to process the etched surface. The surface condition was investigated by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). The current voltage measurement was used to show the I-V characteristics of Ni/Au contacts on the sample. The experimental result demonstrated that the NaOH treatment is effective in improving the material surface and the ohmic contact properties. |
| |
Keywords: | |
|
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |