A selective-epitaxial SiGe HBT with SMI electrodes featuring 9.3-ps ECL-gate delay

被引:28
作者
Washio, K [1 ]
Ohue, E [1 ]
Oda, K [1 ]
Tanabe, M [1 ]
Shimamoto, H [1 ]
Onai, T [1 ]
机构
[1] Hitachi Ltd, Cent Res Lab, Tokyo 185, Japan
来源
INTERNATIONAL ELECTRON DEVICES MEETING - 1997, TECHNICAL DIGEST | 1997年
关键词
D O I
10.1109/IEDM.1997.650501
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
A selective-epitaxial SiGe base heterojunction bipolar transistor (HBT) with self-aligned stacked metal/IDP (SMI) electrodes is proposed. The SiGe-base structure, self-aligned to the 0.1-mu m-wide emitter, effectively reduces collector capacitance and SMI electrodes provide low parasitic resistances. A BPSG/SiO2-refilled trench was introduced to reduce the substrate capacitance. A 9.3-ps delay time in a differential ECL ring oscillator was achieved.
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页码:795 / 798
页数:4
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