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p-GaP与Au/Zn/AuSb的欧姆接触
Ohmic contacts of p-GaP and Au/Zn/AuSb
【摘要】 用 SEM,AES 和 XRD 研究了 Au/Zn/AuSb 多层金属结构与 p-GaP 在525℃合金化4min 后,它们所形成的金属一半导体层的基本特性。当 GaP 的 p 型层空穴浓度是5×1.018cm-3时,测量出它的比接触电阻是4×10-4Ω·cm-2。它比 AuZn 合金所形成的比接触电阻降低了一个数量级,从而形成了良好的金属-半导体欧姆接触。
【Abstract】 The basic properties p-GaP into Au/Zn/AuSb muhiple layer struc- ture at 525℃ for 4 minutes of metal-simiconductor contact layers formeduc by alloying are studied by SEM,AES and XRD.The specific contact resis- tance of 4×10-4Ω·cm-2 is measured only at the concentration of p=5×1018 cm-3.As it is of the order of one lower than that of Au/Zn alloy,good con- tacts are obtained.
【关键词】 比接触电阻;
剖面分布;
表面形貌;
冶金相;
【Key words】 Specific Contact Resistance; Profile Distribution; Surface Morphology; Metallurgical Phase;
【Key words】 Specific Contact Resistance; Profile Distribution; Surface Morphology; Metallurgical Phase;
- 【文献出处】 半导体光电 ,Semiconductor Optoelectronics , 编辑部邮箱 ,1993年01期
- 【被引频次】2
- 【下载频次】71