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    • 9. 发明授权
    • Method to resolve line end distortion for alternating phase shift mask
    • 解决交变相移掩模线路失真的方法
    • US07445874B2
    • 2008-11-04
    • US10985263
    • 2004-11-10
    • Sia Kim TanQunying LinLiang-Choo Hsia
    • Sia Kim TanQunying LinLiang-Choo Hsia
    • G03F9/00G06F17/50
    • G03F1/30
    • A embodiment method for forming a layout for a phase shift mask. A embodiment comprises providing a layout comprising a first feature, a first shifter region and a second shifter region. The first feature preferably has a L-shape portion with an elbow region. The first shifter region is on the outside of the L-shaped portion and the second shifter region is on the inside of the L-shaped portion. The elbow region has an outside corner away from the second shifter region. We identify a phase conflict region caused by the L-shaped portion of the first feature, the first shifter region and the second shifter region. We resolve the phase conflict by modifying the elbow region by moving the outside corner of the elbow region away from the first shifter region and the phase conflict region. The modification of the elbow region further comprises forming a jog region in the line end section of the first feature.
    • 一种用于形成相移掩模布局的实施例方法。 实施例包括提供包括第一特征,第一移位区和第二移位区的布局。 第一特征优选具有肘部区域的L形部分。 第一移位区域位于L形部分的外侧,第二移位区域位于L形部分的内侧。 肘部区域具有远离第二移位区域的外角。 我们识别由第一特征的L形部分,第一移位区域和第二移位区域引起的相位冲突区域。 我们通过移动肘部区域的外角远离第一移位区域和相位冲突区域来修改肘部区域来解决相位冲突。 肘部区域的修改还包括在第一特征的线端部中形成点动区域。