Source/Drain Engineered Charge-Plasma Junctionless Transistor for the Immune of Line Edge Roughness Effect

Source/Drain Engineered Charge-Plasma Junctionless Transistor for the Immune of Line Edge Roughness Effect
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源极/漏极工程电荷等离子体无结晶体管,可免受线边缘粗糙度影响

DOI:
10.1109/ted.2018.2812241
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发表时间:
2018-05
影响因子:
3.1
通讯作者:
Xinnan Lin
Xinnan Lin
中科院分区:
工程技术2区
文献类型:
--
作者:
Wenbo Wan;Haijun Lou;Ying Xiao;Xinnan Lin

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在本文中,电荷等离子体结构的源/漏区被纳入无掺杂无结晶体管获得上级免疫力的线边缘粗糙度(LER)。一个优化的开/关电流比,通过使用数值模拟观察。它也表明,建议的电荷等离子体无结晶体管(CP-JLT)是不敏感的LER幅度的变化。进一步揭示了LER影响CP-JLT电学特性的物理机制。首次提出了沟道最小宽度位置变化和沟道宽度变化两个概念,探讨了LER的影响。研究表明,LER主要通过改变沟道最小宽度位置引起的源极宽度变化来影响CP JLT的I ON,而LER主要通过改变沟道宽度来影响<inline-formula><tex-math notation="LaTeX">I</tex-math></inline-formula><inline-formula><tex-math notation="LaTeX">OFF</tex-math></inline-formula>、SS和<inline-formula><tex-math notation="LaTeX">V th</tex-math></inline-formula>这对抑制CP-JLT的LER变化具有一定的指导意义。
In this paper, the charge-plasma structure over the source/drain region is incorporated into a dopingless junctionless transistor for obtaining the superior immunity of line edge roughness (LER). An optimized on/off current ratio is observed by using numerical simulations. It is also demonstrated that the proposed charge-plasma junctionless transistor (CP-JLT) is insensitive to the variation of LER magnitude. We further reveal the physics that LER affects the electrical characteristics of CP-JLT. Channel minimal width position variation and channel width variation are put forward to explore the impact of LER for the first time. It is observed that the LER affects the <inline-formula> <tex-math notation="LaTeX">${I}_{\text {ON}}$ </tex-math></inline-formula> of CP-JLT due to the changes of the source width caused by channel minimal width position variation, whereas the LER affects the <inline-formula> <tex-math notation="LaTeX">${I}_{\text {OFF}}$ </tex-math></inline-formula>, SS, and <inline-formula> <tex-math notation="LaTeX">${V}_{\text {th}}$ </tex-math></inline-formula> mainly through channel width variation. It is thus proved to be a helpful guide to suppress the LER variation of CP-JLT.
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