The reduction of base resistance of SiGe Si HBT via ion implantation and side-wall oxide self-aligned technique

被引:2
|
作者
Xu, C [1 ]
Zhang, JY [1 ]
Zhao, LX [1 ]
Deng, J [1 ]
Tao, CB [1 ]
Gao, G [1 ]
Du, JY [1 ]
Luo, J [1 ]
Zou, DS [1 ]
Chen, JX [1 ]
Shen, GD [1 ]
机构
[1] Beijing Polytech Univ, Dept Elect Engn, Beijing 100022, Peoples R China
来源
1998 5TH INTERNATIONAL CONFERENCE ON SOLID-STATE AND INTEGRATED CIRCUIT TECHNOLOGY PROCEEDINGS | 1998年
关键词
SiGe Si HBT; base resistance; ion implantation;
D O I
10.1109/ICSICT.1998.786135
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
Ion implantation and side-wall oxide self-aligned technique was used to reduce the extrinsic base resistance of SiGe HBT. The sheet resistance of SiGe layer was reduced over 20 times under proper implantation and annealing parameters, and ohmic contacting was also improved. This can greatly enhance the frequency performance and reduce the noise figure of SiGe HBT. The SiGe sheet resistance is sensitive to the implantation and annealing parameters. For our samples implantation dosage of 10(16)/cm(3) and energy of 35kev,annealing temperature from 960 degrees C to 1000 degrees C is suitable.
引用
收藏
页码:776 / 779
页数:2
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