Fengkai Liu;Zhongli Liu;Xin Jin;Shuo Liu;Lei Wu;Jianqun Yang;Jizhou Luo;Ruixiang Xu;Xingji Li
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引用次数: 0
Abstract
This work presents the impact of heavy ion irradiation on vertical-diffused metal-oxide-semiconductor field-effect transistors (VDMOSFETs), particularly focusing on the ionization and displacement damage pivotal for the operation of devices in space environments. We conducted experiments using irradiation with chlorine, silicon, fluorine, and oxygen ions. Our analysis involves calculating the linear energy transfer (LET) and nonionizing energy loss (NIEL) for various ion incidences, followed by determining the ionizing absorbed dose (
$D _{\mathrm {i}}$
) and displacement absorbed dose (
$D _{\mathrm {d}}$
) based on these parameters. Subsequently, we normalized the effects of heavy ion irradiation by examining the threshold voltage shift (
$\Delta V _{\mathrm {TH}}$
) for ionization damage, and the drain-leakage current variation (
$\Delta I _{\mathrm {DLC}}$
) and drain-saturation current variation (
$\Delta I _{\mathrm {DSC}}$
) for displacement damage. Our findings reveal that the displacement damage, characterized by the
$\Delta I _{\mathrm {DLC}}$
indicator, serves as a dependable metric for normalizing the impact across varying ion species. This discovery is significant for the equivalent study of different kinds of spaceborne charged ion irradiation in power VDMOS transistors.
期刊介绍:
The IEEE Transactions on Nuclear Science is a publication of the IEEE Nuclear and Plasma Sciences Society. It is viewed as the primary source of technical information in many of the areas it covers. As judged by JCR impact factor, TNS consistently ranks in the top five journals in the category of Nuclear Science & Technology. It has one of the higher immediacy indices, indicating that the information it publishes is viewed as timely, and has a relatively long citation half-life, indicating that the published information also is viewed as valuable for a number of years.
The IEEE Transactions on Nuclear Science is published bimonthly. Its scope includes all aspects of the theory and application of nuclear science and engineering. It focuses on instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.