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    • 113. 发明授权
    • Overlay mark enhancement feature
    • 叠加标记增强功能
    • US08148232B2
    • 2012-04-03
    • US12854660
    • 2010-08-11
    • Meng-Wei ChenChi-Chuang LeeChung-Hsien Lin
    • Meng-Wei ChenChi-Chuang LeeChung-Hsien Lin
    • H01L21/70
    • G03F7/70633G03F9/7076G03F9/7084H01L2924/0002H01L2924/00
    • Methods and apparatuses for alignment are disclosed. An exemplary method includes providing a substrate having a device region and an alignment region; forming a first material layer over the substrate; forming a device feature and a dummy feature in the first material layer, wherein the device feature is formed in the device region and the dummy feature is formed in the alignment region; forming a second material layer over the first material layer; and forming an alignment feature in the second material layer, the alignment feature being disposed over the dummy feature in the alignment region. The device feature has a first dimension and the dummy feature has a second dimension, the second dimension being less than a resolution of an alignment mark detector.
    • 公开了用于对准的方法和装置。 一种示例性方法包括提供具有器件区域和对准区域的衬底; 在所述衬底上形成第一材料层; 在所述第一材料层中形成器件特征和虚拟特征,其中所述器件特征形成在所述器件区域中,并且所述伪特征形成在所述对准区域中; 在所述第一材料层上形成第二材料层; 以及在所述第二材料层中形成对准特征,所述对准特征被布置在所述对准区域中的所述虚拟特征之上。 设备特征具有第一维度,虚拟特征具有第二维度,第二维度小于对准标记检测器的分辨率。
    • 115. 发明授权
    • Oscillator calibration apparatus and oscillator calibration method
    • 振荡器校准装置和振荡器校准方法
    • US08564374B2
    • 2013-10-22
    • US13252171
    • 2011-10-03
    • Chun-Yu ChiuYaw-Guang ChangMeng-Wei Shen
    • Chun-Yu ChiuYaw-Guang ChangMeng-Wei Shen
    • H03L7/06H03L7/183
    • H03L7/097H03L7/091
    • An oscillator calibration apparatus includes a counter, a comparator and an adjusting unit. The counter is utilized for receiving a first clock signal and a second clock signal, and utilizing the first clock signal to sample the second clock signal to generate at least one counting value, where the first clock signal is generated from a first oscillator, and the second clock signal is generated from a second oscillator different from the first oscillator; the comparator is coupled to the counter, and is utilized for comparing the counting value with a predetermined value to generate at least one calibration signal; and the adjusting unit is coupled to the comparator, and is utilized for adjusting a frequency of the second oscillator according to the calibration signal.
    • 振荡器校准装置包括计数器,比较器和调整单元。 该计数器用于接收第一时钟信号和第二时钟信号,并利用第一时钟信号对第二时钟信号进行采样以产生至少一个计数值,其中第一时钟信号从第一振荡器产生, 从与第一振荡器不同的第二振荡器产生第二时钟信号; 比较器被耦合到计数器,并且用于将计数值与预定值进行比较以产生至少一个校准信号; 并且所述调整单元耦合到所述比较器,并且用于根据所述校准信号调整所述第二振荡器的频率。