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    • 86. 发明申请
    • Workpiece Processing Technique
    • 工件加工技术
    • US20170005013A1
    • 2017-01-05
    • US14788306
    • 2015-06-30
    • Varian Semiconductor Equipment Associates, Inc.
    • Morgan D. EvansKevin AnglinRoss Bandy
    • H01L21/66H01L21/265H01L21/02H01L21/285H01L21/3065H01L21/263
    • H01L21/28506H01J2237/30433H01J2237/31H01L22/12H01L22/20
    • Methods for processing of a workpiece are disclosed. The actual rate at which different portions of an ion beam can process a workpiece, referred to as the processing rate profile, is determined by measuring the amount of material removed from, or added to, a workpiece by the ion beam as a function of ion beam position. An initial thickness profile of a workpiece to be processed is determined. Based on the initial thickness profile, a target thickness profile, and the processing rate profile of the ion beam, a first set of processing parameters are determined. The workpiece is then processed using this first set of processing parameters. In some embodiments, an updated thickness profile is determined after the first process and a second set of processing parameters are determined. A second process is performed using the second set of processing parameters. Optimizations to improve throughput are also disclosed.
    • 公开了加工工件的方法。 离子束的不同部分可以处理工件的实际速率(称为加工速率曲线)通过测量离子束作为离子的函数从工件移除或添加到工件中的量来确定 梁位置。 确定要处理的工件的初始厚度分布。 基于初始厚度分布,目标厚度分布和离子束的处理速率分布,确定第一组处理参数。 然后使用该第一组处理参数处理工件。 在一些实施例中,在第一过程和第二组处理参数被确定之后确定更新的厚度分布。 使用第二组处理参数来执行第二处理。 还公开了提高吞吐量的优化。