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A novel thin-film transistor with step gate-overlapped lightly doped drain and raised source/drain design

机译:一种新颖的薄膜晶体管,具有阶梯式栅极重叠的轻掺杂漏极和凸起的源极/漏极设计

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摘要

In this paper, a novel step gate-overlapped lightly doped drain (GOLDD) with raised source/drain (RSD) structure (SGORSD) is proposed for TFT electronic device application. The new SGORSD structure could obtain a low electric field at channel near the drain side owing to a step GOLDD design. Compared to the conventional device, the SGORSD TFT exhibits a better kink effect and higher breakdown performance due to the reduced drain electric field (D-EF). In addition, the leakage current also can be suppressed. Moreover, the device stability, such as the threshold voltage shift and drain current degradation under a high gate bias, is improved by the design of SGORSD structure. Therefore, this novel step GOLDD structure can be a promising design to be used in active-matrix flat panel electronics. (C) 2017 Elsevier Ltd. All rights reserved.
机译:在本文中,提出了一种新颖的具有高的源极/漏极(RSD)结构(SGORSD)的阶梯栅重叠轻掺杂漏极(GOLDD),用于TFT电子器件应用。由于采用了阶梯式GOLDD设计,新的SGORSD结构可以在漏极侧附近的沟道处获得低电场。与传统器件相比,由于减少了漏极电场(D-EF),SGORSD TFT具有更好的扭结效果和更高的击穿性能。另外,还可以抑制泄漏电流。此外,通过SGORSD结构的设计提高了器件稳定性,例如在高栅极偏置下的阈值电压漂移和漏极电流降低。因此,这种新颖的台阶式GOLDD结构可能是用于有源矩阵平板电子产品的有前途的设计。 (C)2017 Elsevier Ltd.保留所有权利。

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