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    • 3. 发明公开
    • AN APPARATUS OF CONTROLLING TEMPERATURE AND A METHOD OF CONTROLLING THE TEMPERATURE OF WAFER
    • 一种控制温度的方法和一种控制波浪温度的方法
    • KR20090033247A
    • 2009-04-01
    • KR20097001508
    • 2009-01-23
    • BEIJING NMC CO LTD
    • LIU LIJIAN
    • H01L21/683H01L21/00H01L21/66
    • H01L21/67248H01L21/6831
    • An apparatus of controlling temperature and a method of controlling the temperature of the wafer are provided, the apparatus comprises an electrostatic chuck (5) on which a wafer may be placed, a centric backside cooling gas passage (2) and an edge backside cooling gas passage (4) which are not communicated each other are disposed in the electrostatic chuck (5), the centric backside cooling gas passage (2) is contacted with the wafer tightly and sealed well, the edge surface of the edge backside cooling gas passage (4) which is contact with the wafer is rough, or one or plurity of leaking holes (11) of gas is/are disposed at the edge of electrostatic chuck, the cooling gas in the edge backside cooling gas passage (4) can be leaked along the roughness surface or the leaking holes (11), the centric backside cooling gas passage (2) is connected to the pressure controller (8), the edge backside cooling gas passage (4) is connected to the MFC. The apparatus can both vary the effect of heat dissipation at the edge of the wafer and control efficiently the tempreture of the wafer. The invention can be used mainly in the temperature controlling system of the semiconductor manufacturing process, it also can be used in other occasions, especially used in the etching apparatus.
    • 提供了一种控制温度的装置和一种控制晶片温度的方法,该装置包括一个可放置晶片的静电卡盘(5),一个中心后侧冷却气体通道(2)和一个边缘后侧冷却气体 未彼此连通的通路(4)设置在静电卡盘(5)中,中心背侧冷却气体通路(2)与晶片紧密接触并密封,边缘后侧冷却气体通路 与晶片接触的4)是粗糙的,或者在静电卡盘的边缘处设置有一个或多个气体泄漏孔(11),边缘后侧冷却气体通道(4)中的冷却气体可能会泄漏 沿着粗糙表面或泄漏孔(11),中心后侧冷却气体通路(2)连接到压力控制器(8),边缘后侧冷却气体通道(4)连接到MFC。 该装置既可以改变晶片边缘散热的影响,又能有效控制晶片的温度。 本发明主要用于半导体制造工艺的温度控制系统,也可用于其他场合,特别是在蚀刻装置中使用。