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    • 1. 发明授权
    • Ring oscillator with embedded scatterometry grate array
    • 环形振荡器带有嵌入式散射仪格栅阵列
    • US06801096B1
    • 2004-10-05
    • US10348014
    • 2003-01-22
    • Hormuzdiar E. NarimanDerick J. WristersJames F. Buller
    • Hormuzdiar E. NarimanDerick J. WristersJames F. Buller
    • H03B2700
    • H01L27/088H03K3/0315
    • A MOS ring oscillator includes a number of serially connected inverter stages with each stage comprising a MOS transistor pair. At least one of the transistors also comprises a scatterometry grate array, which is used during manufacturing of the ring oscillator to obtain scatterometry measurements that allow polysilicon lines of the MOS ring oscillator to have widths of less than 60 nm. A method includes forming at least one grate array above a substrate, illuminating the grate array, measuring light reflected off of the grate array to generate an optical characteristic trace for the grate array, and comparing the generated optical characteristic trace to a target optical characteristic trace that corresponds to a grate array having a desired profile. The generated trace can further be used to calibrate the ring oscillator
    • MOS环形振荡器包括多个串联的反相器级,每级包括一个MOS晶体管对。 至少一个晶体管还包括散射测量格栅阵列,其在环形振荡器的制造期间使用以获得允许MOS环形振荡器的多晶硅线具有小于60nm的宽度的散射测量。 一种方法包括在衬底上形成至少一个格栅阵列,照亮格栅阵列,测量从格栅阵列反射的光,以产生格栅阵列的光学特征曲线,并将生成的光学特征曲线与目标光学特征曲线 对应于具有所需轮廓的炉排阵列。 产生的轨迹可进一步用于校准环形振荡器
    • 8. 发明授权
    • Self-aligned Vt implant
    • 自对准Vt植入物
    • US06274415B1
    • 2001-08-14
    • US09489068
    • 2000-01-21
    • Jon D. CheekMark MichaelDerick J. WristersJames F. Buller
    • Jon D. CheekMark MichaelDerick J. WristersJames F. Buller
    • H01L21337
    • H01L29/66583H01L29/105H01L29/66537H01L29/66545
    • Integrated circuits with transistors exhibiting improved junction capacitances and various methods of fabricating the same are provided. In one aspect, a method of manufacturing is provided that includes forming a doped region in an active area of a substrate wherein the doped region has a first conductivity type and a first horizontal junction. A first source/drain region of the first conductivity type is formed in the active area with a second horizontal junction. A second source/drain region of the first conductivity type is formed in the active area with a third horizontal junction and a lateral separation from the first source/drain region that defines a channel region. The second and third horizontal junctions are positioned substantially at the first horizontal junction. The portion of the doped region positioned in the channel region is doped with an impurity of a second conductivity type that is opposite to the first conductivity type. Impurity grading across a source/drain-to-body junction is less abrupt, resulting in improved junction capacitance.
    • 提供具有改善的结电容的晶体管的集成电路及其制造方法。 一方面,提供一种制造方法,其包括在衬底的有源区中形成掺杂区域,其中所述掺杂区域具有第一导电类型和第一水平结。 第一导电类型的第一源极/漏极区域形成在具有第二水平结的有源区域中。 第一导电类型的第二源极/漏极区域在有源区域中形成有第三水平结和与限定沟道区域的第一源极/漏极区域的横向分离。 第二和第三水平接头基本位于第一水平接头处。 位于沟道区域中的掺杂区域的部分掺杂有与第一导电类型相反的第二导电类型的杂质。 通过源极/漏极到体区结的杂质分级不太突然,导致改善的结电容。