標題: | Critical spacing between emitter and base in InGaP heterojunction bipolar transistors (HBTs) |
作者: | Huang, CE Lee, CP Liang, HC Huang, RT 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | critical spacing between emitter and base;flicker noise;InGaPHBT;ledge length |
公開日期: | 1-十月-2002 |
摘要: | In this paper, the influence of the spacing between the emitter and the base on the performance of InGaP heterojunction bipolar transistors (HBT) was experimentally studied. We found that the emitter to base spacing can be reduced to as small as 0.6 mum without causing a significant drop in the current gain. The reduction in emitter-to-base spacing, however, leads to improvement in high-frequency performance and device phase noise. For optimal dc, RF, and low-frequency noise performances, we have determined that a critical spacing of 0.6similar to0.8 mum between the emitter and the base of an InGaP HBT is required. |
URI: | http://dx.doi.org/10.1109/LED.2002.803758 http://hdl.handle.net/11536/28508 |
ISSN: | 0741-3106 |
DOI: | 10.1109/LED.2002.803758 |
期刊: | IEEE ELECTRON DEVICE LETTERS |
Volume: | 23 |
Issue: | 10 |
起始頁: | 576 |
結束頁: | 578 |
顯示於類別: | 期刊論文 |