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Author:

金冬月 (金冬月.) | 赵馨仪 (赵馨仪.) | 张万荣 (张万荣.) | 郭燕玲 (郭燕玲.) | 陈蕊 (陈蕊.) | 王利凡 (王利凡.)

Indexed by:

incoPat zhihuiya

Abstract:

本发明公开了一种具有高热稳定性的超结应变Si/SiGe异质结双极晶体管。所述晶体管采用SiGe虚拟衬底结构,其上分别外延生长弛豫Si1‑yGey次集电区、弛豫Si1‑yGey集电区、应变Si1‑xGex基区和应变Si发射区。所述晶体管通过在弛豫Si1‑yGey集电区引入与应变Si1‑xGex基区平行的超结p型层达到改善集电结空间电荷区电场分布、降低峰值电子温度、抑制碰撞电离和提高器件击穿电压的目的。同时,超结p型层的引入,将有效降低弛豫Si1‑yGey集电区的掺杂浓度和声子散射几率、提高弛豫Si1‑yGey集电区热导率。所述晶体管兼具大电流增益和高击穿电压特性,且内部温度分布显著降低,特征频率温度敏感性得到改善,可在较宽的工作温度范围内实现高热稳定性工作。

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Patent Info :

Type: 发明授权

Patent No.: CN201610617990.2

Filing Date: 2016-07-30

Publication Date: 2019-03-05

Pub. No.: CN106169498B

Applicants: 北京工业大学

Legal Status: 授权 ; 许可

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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