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    • 17. 发明专利
    • Deposition apparatus and deposition method
    • 沉积装置和沉积方法
    • JP2014022458A
    • 2014-02-03
    • JP2012157728
    • 2012-07-13
    • Tokyo Electron Ltd東京エレクトロン株式会社
    • KATO HISASHIMIURA SHIGEHIRO
    • H01L21/31C23C16/455H01L21/316
    • H01L21/0228C23C16/45508C23C16/45551C23C16/45587C23C16/4584
    • PROBLEM TO BE SOLVED: To provide a technique for minimizing decrease in the in-plane uniformity of thickness due to separation gas sucked to the lower side of a current plate, in an apparatus for forming a film by revolving a substrate by means of a turntable, and supplying process gas from a process gas supply section including a gas nozzle and a current plate.SOLUTION: A current plate is installed so that the clearance from a turntable decreases from one end side, i.e., the central side of the turntable, toward the other end side, i.e., the peripheral side of the turntable, and so that the clearance at the other end is smaller than the clearance at one end 1 mm or more. Consequently, difference of entrainment of separation gas to the lower side of the current plate is reduced between the central side and peripheral side of the turntable, and decrease in the in-plane uniformity of thickness can be minimized.
    • 要解决的问题:提供一种用于最小化由于吸入到当前板的下侧的分离气体导致的平面内均匀性的降低的技术,在用于通过转台旋转基板来形成膜的装置中 并且从包括气体喷嘴和当前板的处理气体供应部分供应处理气体。解决方案:安装当前板,使得来自转盘的间隙从转台的一个端部即中间转动到另一侧 另一端即旋转台的周边,另一端的间隙小于一端1mm以上的间隙。 因此,分离气体与当前板的下侧的夹带差在转台的中心侧和周边之间减小,并且可以使厚度的面内均匀性降低。