Designing power heterojunction bipolar transistors with non-uniform emitter finger lengths to achieve high thermal stability

• 来源期刊: 中国物理B(英文版)
• 学科: 工学
• 关键词: 异质结双极型晶体管 设计时间 热稳定性 非均匀 长度 手指 功率 异质结双极晶体管
• 年，卷（期）: 2011,（7）
• 页码范围: 074401.1-074401.7
• 页数: 2页
• 分类号: TN322.8
• 语种: 英文
• DOI: 10.1088/1674-1056/20/7/074401

摘要

With the aid of a thermal-electrical model,a practical method for designing multi-finger power heterojunction bipolar transistors with finger lengths divided in groups is proposed.The method can effectively enhance the thermal stability of the devices without sacrificing the design time.Taking a 40-finger heterojunction bipolar transistor for example,the device with non-uniform emitter finger lengths is optimized and fabricated.Both the theoretical and the experimental results show that,for the optimum devi...