Interface trap induced RF and low frequency noise analysis under temperature variations of a hetero-stacked source L-gate TFET

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-05 DOI:10.1088/1361-6641/ad5466

D. Das, Ujjal Chakraborty, Pranjal Borah

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Abstract

This brief exclusively demonstrates a comprehensive analysis of the adverse impact of interface trap charge (ITC) under the influence of temperature variation on a hetero-stacked (HS) source L-gate tunnel field effect transistor (TFET) having SiGe pocket. An investigation of both static and RF characteristics has been carried out. It appears that ITCs situated at the Silicon (Si)/oxide interface fluctuates the flat-band voltage to alter the various analog/RF parameter characteristics. Uniform ITCs are seen to be less susceptible to degradation in device characteristics. The low frequency noise (LFN) analysis has also been investigated considering the impact of different trap distribution (Uniform and Gaussian) and densities which are compared thereafter. Besides, the temperature dependent LFN has been studied under influence of different distributed ITCs which is rarely explored yet. Moreover, a comparative analysis has been done on the device behaviour and LFN characteristics of HS L-gate TFET structures with and without SiGe pocket. The structure with SiGe pocket is found to be insusceptible to noise effects.

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异质叠层源 L 栅极 TFET 温度变化下的界面陷阱诱导射频和低频噪声分析

本简介专门展示了在温度变化的影响下，界面陷阱电荷（ITC）对具有硅锗阱的异质堆叠（HS）源 L 栅极隧道场效应晶体管（TFET）的不利影响的综合分析。我们对静态和射频特性进行了研究。结果表明，位于硅（Si）/氧化物界面的 ITC 会波动平带电压，从而改变各种模拟/射频参数特性。均匀的 ITC 不易导致器件特性下降。考虑到不同阱分布（均匀阱和高斯阱）和密度的影响，还对低频噪声（LFN）分析进行了研究，并在之后进行了比较。此外，还研究了在不同分布式 ITC 影响下的随温度变化的低频噪声，这一点目前还很少有人探讨。此外，我们还对带和不带 SiGe 袋的 HS L 栅 TFET 结构的器件行为和 LFN 特性进行了比较分析。结果发现，带 SiGe 袋的结构不易受噪声影响。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.