HUANG Wentao WANG Jilin LIU Zhinong CHEN Changchun CHEN Peiyi QIAN Peixin. Electrical performance analysis of electron irradiated SiGe HBT and Si BJT[J]. Nuclear techniques, 2005, (3): 213-216.
HUANG Wentao WANG Jilin LIU Zhinong CHEN Changchun CHEN Peiyi QIAN Peixin. Electrical performance analysis of electron irradiated SiGe HBT and Si BJT[J]. Nuclear techniques, 2005, (3): 213-216.DOI:
β 下降幅度也很大。这说明 SiGe HBT 具有比 Si BJT 更好的抗辐照性能。对电子辐照后器件电学性能的变化机制进行了初步分析。
Abstract
The change of electrical performances of 1 MeV electron irradiated silicon-germanium (SiGe) heterojunction bipolar transistor (HBT) and Si bipolar junction transistor (BJT) was studied. After electron irradiation
the collector current IC decreased while the base current IB did not change
and the current gain β decreased for SiGe HBT. For conventional Si BJT
both IC and IB increased and β decreased much more obviously than SiGe HBT at the same fluence. It was shown that SiGe HBT had a better anti-radiation performance than Si BJT. The mechanism of electrical performance changes induced by irradiation was preliminarily discussed.