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    • 3. 发明申请
    • ETCHING APPARATUS FOR EDGES OF SUBSTRATE
    • 蚀刻基板边缘的装置
    • US20080128088A1
    • 2008-06-05
    • US11927182
    • 2007-10-29
    • Dae-Sik JUNNDuck-Ho KIMMyung-Gon SONGJeong-Beom LEEKyoung-Jin LIMSung-Ho CHA
    • Dae-Sik JUNNDuck-Ho KIMMyung-Gon SONGJeong-Beom LEEKyoung-Jin LIMSung-Ho CHA
    • C23F1/00
    • H01L21/67069H01J37/32623H01J2237/334
    • An etching apparatus comprises a chamber; a substrate supporter in the chamber; a substrate disposed on the substrate and having one of a notch zone and a flat zone, the substrate having a rim of a circular shape except in the one of the notch zone and the flat zone, wherein the rim of the substrate has a dented shape in the notch zone and a chord shape in the flat zone; a substrate-screening unit having a substantially same shape as the substrate and disposed over the substrate, the substrate-screening unit having a portion corresponding to the one of the notch zone and the flat zone, wherein the substrate-screening unit has a first diameter smaller than or equal to a second diameter of the substrate; a gas injection means supplying gases onto a periphery of the substrate; and a power supply unit supplying an RF (radio frequency) power into the chamber.
    • 蚀刻装置包括:腔室; 腔室中的衬底支撑件; 衬底,其设置在所述衬底上并且具有切口区域和平坦区域中的一个,所述衬底具有除所述凹口区域和所述平坦区域之外的圆形边缘,其中所述衬底的边缘具有凹陷形状 在切口区域中,在平坦区域中具有弦形; 衬底筛选单元,其具有与衬底基本相同的形状并且设置在衬底上,衬底筛选单元具有对应于切口区域和平坦区域中的一个的部分,其中衬底筛选单元具有第一直径 小于或等于所述基板的第二直径; 气体喷射装置,其将气体供应到所述基板的周边; 以及向室提供RF(射频)功率的电源单元。