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    • 6. 发明申请
    • METHODS AND APPARATUS FOR TUNING A SET OF PLASMA PROCESSING STEPS
    • 用于调整一套等离子体处理步骤的方法和装置
    • WO2006036753A3
    • 2007-01-25
    • PCT/US2005034034
    • 2005-09-21
    • LAM RES CORPVAHEDI VAHIDDAUGHERTY JOHN ESINGH HARMEETCHEN ANTHONY
    • VAHEDI VAHIDDAUGHERTY JOHN ESINGH HARMEETCHEN ANTHONY
    • B44C1/22C23F1/00H01L21/00
    • C03C15/00C03C23/006H01J37/32623H01J37/32642H01L21/32136
    • In a plasma processing system, a method of tuning of a set of plasma processing steps is disclosed. The method includes striking a first plasma comprising neutrals (320a) and ions (320b) in a plasma reactor of the plasma processing system. The method also includes etching in a first etching step a set of layers on a substrate (303); positioning a movable uniformity ring (302) around the substrate, including an opening (308) that is configured for directing species of plasma towards chuck (314), wherein, a bottom surface of the uniformity ring is about the same height as a top surface of the substrate; and striking a second plasma consisting essentially of neutrals in the plasma reactor of the plasma processing system. The method further includes etching in a second etching step the set of layers on the substrate; and wherein the etching in the first step and the etching in the second step are substantially uniform.
    • 在等离子体处理系统中,公开了一组等离子体处理步骤的调谐方法。 该方法包括在等离子体处理系统的等离子体反应器中击打包括中性粒子(320a)和离子(320b)的第一等离子体。 该方法还包括在第一蚀刻步骤中蚀刻在衬底(303)上的一组层; 将可移动均匀环(302)定位在所述基底周围,包括构造成用于将等离子体的种类引导到卡盘(314)的开口(308),其中,所述均匀环的底表面与顶表面大约相同的高度 的基底; 并且在等离子体处理系统的等离子体反应器中击打基本上由中性体组成的第二等离子体。 该方法还包括在第二蚀刻步骤中蚀刻衬底上的这组层; 并且其中第一步骤中的蚀刻和第二步骤中的蚀刻基本均匀。