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    • 10. 发明公开
    • 반도체 장치 및 반도체 장치의 구동방법
    • 半导体器件及其驱动方法
    • KR1020120075423A
    • 2012-07-06
    • KR1020110143425
    • 2011-12-27
    • 가부시키가이샤 한도오따이 에네루기 켄큐쇼
    • 야마자키순페이
    • H01L27/108H01L21/8242
    • H01L27/1225C04B35/58C04B2235/3284C04B2235/3286H01L27/1255H01L29/78648
    • PURPOSE: A semiconductor device and a driving method thereof are provided to increase capacitance per unit area by using an oxide semiconductor material as a dielectric of a capacitive element. CONSTITUTION: A gate electrode(148a) is formed on an insulating layer(140). A gate insulating layer(146) covers the gate electrode. A first oxide semiconductor layer(144a) is overlapped with the gate electrode on the gate insulating layer. The gate insulating layer is placed between the gate electrode and the first oxide semiconductor layer. A transistor(160) has a source electrode and a drain electrode connected with the first oxide semiconductor layer. A second electrode is electrically connected with either the source electrode or the drain electrode. A capacitive element(164) comprises a second oxide semiconductor layer(144b) which is placed between a first electrode and the second electrode.
    • 目的:提供半导体器件及其驱动方法,以通过使用氧化物半导体材料作为电容元件的电介质来增加每单位面积的电容。 构成:在绝缘层(140)上形成栅电极(148a)。 栅极绝缘层(146)覆盖栅电极。 第一氧化物半导体层(144a)与栅极绝缘层上的栅电极重叠。 栅极绝缘层位于栅电极和第一氧化物半导体层之间。 晶体管(160)具有与第一氧化物半导体层连接的源电极和漏电极。 第二电极与源电极或漏电极电连接。 电容元件(164)包括放置在第一电极和第二电极之间的第二氧化物半导体层(144b)。