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    • 3. 发明公开
    • 박막 트랜지스터
    • 薄膜晶体管
    • KR1020020050085A
    • 2002-06-26
    • KR1020010052723
    • 2001-08-30
    • 가부시키가이샤 히타치세이사쿠쇼
    • 이또가도시히꼬시바다께오오꾸라마꼬또가네꼬도시끼
    • H01L29/786
    • H01L29/66757H01L29/78621
    • PURPOSE: To provide a thin-film transistor(TFT) of high reliability wherein the problem is dissolved where damage caused by doping is generated in a gate insulating film, when an LDD of a TFT is formed, so that reliability is decreased when the TFT is formed at a low temperature, and to provide an LCD of long life time. CONSTITUTION: When the LDD is formed by ion implantation or ion doping, a concentration profile of impurities in poly-Si is so controlled that a peak exists in a region except a center of depth of poly-Si. Consequently, damage to be generated in a gate oxide film in the vicinity of an interface with poly-Si, by which damage reliability of the TFT is largely controlled can be reduced. When doping is performed to an LDD of a TFT having a structure, wherein a gate electrode is overlapped with the LDD, doping to the LDD is performed independently of doping to a source/drain. By this method, a concentration profile of the LDD can be controlled, so that reduction of interface damage which is owed to the control of the concentration profile can be realized simultaneously.
    • 目的:提供一种高可靠性的薄膜晶体管(TFT),其中当在栅极绝缘膜中产生由掺杂产生的损伤时,问题被解决,当形成TFT的LDD时,使TFT的TFT可靠性降低 形成在低温下,并提供长寿命的LCD。 构成:当通过离子注入或离子掺杂形成LDD时,多晶硅中杂质的浓度分布被如此控制,使得在多晶硅深度以外的区域中存在峰。 因此,可以降低在与多晶硅的界面附近的栅极氧化膜中产生的损害,由此可以大大地控制TFT的损伤可靠性。 当对具有结构的TFT(其中栅电极与LDD重叠)的LDD进行掺杂时,独立于对源极/漏极的掺杂来执行对LDD的掺杂。 通过该方法,可以控制LDD的浓度分布,可以同时实现对浓度分布的控制的界面损伤的降低。
    • 5. 发明公开
    • 화상 표시 장치 및 그 제조 방법
    • 图像显示装置及其制造方法
    • KR1020030051152A
    • 2003-06-25
    • KR1020020039650
    • 2002-07-09
    • 가부시키가이샤 히타치세이사쿠쇼
    • 시바다께오하따노무쯔꼬야마구찌신야박성기
    • G02F1/136
    • G02F1/13454G02F2202/104H01L27/12H01L27/1285H01L29/04H01L29/78621H01L29/78675
    • PURPOSE: To provide a circuit-containing thin film transistor type image display device having circuits constituted of high performance thin film transistors on a display pixel block and a peripheral circuit block and small circuit special purpose area and to provide a simple method for manufacturing the same. CONSTITUTION: The image display device comprises a display pixel block and peripheral circuit blocks including four corners of the display device on a substrate. The image display device further comprises a circuit made of the thin film transistors in which the longitudinal direction of crystal grains and the current direction of a polycrystalline silicon film anisotropically crystal grown and provided on the entire or partial surface of the display pixel block and the circuit block coincide in such a manner that the directions are aligned in the horizontal or vertical direction in the block, and the blocks in which the horizontal and vertical directions are allowed to be disposed in a mixed state as seen on the same straight line.
    • 目的:提供一种具有电路的薄膜晶体管型图像显示装置,其具有由显示像素块上的高性能薄膜晶体管构成的电路,外围电路块和小电路专用区域,并提供简单的制造方法 。 构成:图像显示装置包括显示像素块和包括在基板上的显示装置的四个角的外围电路块。 图像显示装置还包括由薄膜晶体管构成的电路,其中晶体的纵向方向和多晶硅膜的各向异性晶体的电流方向生长并提供在显示像素块的整个或部分表面上,并且电路 块重合,使得方向在块中的水平或垂直方向上对齐,并且允许水平和垂直方向的块在相同直线上看到的混合状态下排列。
    • 7. 发明公开
    • 박막 반도체 장치 및 그 제조 방법
    • 薄膜晶体管及其制造方法
    • KR1020020064620A
    • 2002-08-09
    • KR1020010009646
    • 2001-02-26
    • 가부시키가이샤 히타치세이사쿠쇼
    • 야마구찌신야시바다께오하따노무쯔꼬박성기
    • H01L29/786
    • H01L29/78696H01L29/66757H01L29/78675H01L29/78684Y10S438/933
    • PURPOSE: To provide a technique for materializing a polycrystalline thin film having crystal structure capable of materializing high mobility as regards a positive hole carrier, by suppressing the grain boundary dispersion and lessening the surface irregularity in a cryogenic poly-Si thin film to serve as the element material of a thin film transistor, so as to materialize an image display of high performance and large area at low cost. CONSTITUTION: A thin film transistor device can materialize high mobility TFT by introducing Ge into the polycrystalline Si film, and varying Ge composition ratio between a crystal grain 7 and a crystal grain boundary 8 by the phase separation accompanying the crystallization thereby suppressing the carrier scattering factors at the crystal grain boundary 8, and besides by suppressing the surface irregularity, making use of the volume difference of the crystals.
    • 目的:提供一种能够实现具有能够实现空穴载流子高迁移率的晶体结构的多晶薄膜的技术,通过抑制晶界分散和减少低温多晶硅薄膜中的表面不规则性,以作为 薄膜晶体管的元件材料,从而以低成本实现高性能和大面积的图像显示。 构成:薄膜晶体管器件可以通过将Ge引入多晶Si膜中并且通过伴随结晶的相分离改变晶粒7和晶界8之间的Ge组成比来实现高迁移率TFT,从而抑制载流子散射因子 在晶界8处,并且通过抑制表面不规则性,利用晶体的体积差。