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    • 9. 发明公开
    • THIN FILM TRANSISTOR AND MANUFACTURING METHOD THEREFOR, ARRAY SUBSTRATE, AND DISPLAY APPARATUS
    • 薄膜晶体管及其制造方法,阵列基板和显示装置
    • EP2988335A1
    • 2016-02-24
    • EP13844527.5
    • 2013-07-02
    • BOE Technology Group Co., Ltd.
    • LIU, XiangWANG, GangXUE, Jianshe
    • H01L29/786H01L21/28
    • H01L29/78606H01L21/441H01L27/1225H01L27/1259H01L29/45H01L29/4908H01L29/66969H01L29/78618H01L29/7869H01L29/78693
    • A thin film transistor and method for manufacturing the same, an array substrate and a display device are disclosed. The thin film transistor comprises a substrate; a gate electrode, a source electrode, a drain electrode and a semiconductor layer formed on the substrate; a gate insulating layer between the gate electrode and the semiconductor layer or between the gate electrode and the source and drain electrodes; an etching stop layer between the semiconductor layer and the source and drain electrodes having a source contact hole and a drain contact hole therein; and a source buffer layer between the source electrode and the semiconductor layer and a drain buffer layer between the drain electrode and the semiconductor layer. The source and drain electrodes are metal Cu electrodes, and the source and drain buffer layers are Cu alloy layer. The formation of the source and drain buffer layer improves the adhesion of the source and drain electrodes thereon to the semiconductor layer therebeneath, and thus improves the performance of the TFT and image quality.
    • 公开了一种薄膜晶体管及其制造方法,阵列基板和显示装置。 薄膜晶体管包括衬底; 形成在基板上的栅电极,源电极,漏电极和半导体层; 栅电极与半导体层之间或栅电极与源电极和漏电极之间的栅极绝缘层; 在所述半导体层与所述源极和漏极之间具有源极接触孔和漏极接触孔的蚀刻停止层; 以及源电极和半导体层之间的源极缓冲层以及漏电极和半导体层之间的漏极缓冲层。 源极和漏极是金属Cu电极,源极和漏极缓冲层是Cu合金层。 源极和漏极缓冲层的形成改善了其上的源电极和漏电极对其下方的半导体层的附着,因此改善了TFT和图像质量的性能。