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    • 1. 发明授权
    • Mask pattern correction method
    • 掩模图案校正方法和系统
    • US6060368A
    • 2000-05-09
    • US206364
    • 1998-12-07
    • Koji HashimotoHisako AoyamaSoichi InoueKazuko YamamotoSachiko Kobayashi
    • Koji HashimotoHisako AoyamaSoichi InoueKazuko YamamotoSachiko Kobayashi
    • G03F1/36G03F1/72G03F7/20H01L21/027H01L21/76
    • G03F7/70441G03F1/36
    • This invention is provided to eliminate the optical proximity effect which will occur because of different rates of dimensional change between before and after etching when a plurality of gate materials are etched in a single device. After a to-be-corrected region is extracted, an n.sup.+ -type polysilicon gate layer is extracted. Then, the distance is calculated from the n.sup.+ -type polysilicon gate layer to a pattern adjacent thereto which can be a p.sup.+ -type polysilicon gate layer, thereby correcting the size of the n.sup.+ -type polysilicon gate layer with reference to a correction table for the pattern adjacent to the n.sup.+ -type polysilicon gate layer. After that, a p.sup.+ -type polysilicon gate layer is extracted. Then, the distance is calculated from the p.sup.+ -type polysilicon gate layer to a pattern adjacent thereto which can be an n.sup.+ -type polysilicon gate layer, thereby correcting the size of the p.sup.+ -type polysilicon gate layer with reference to a correction table for the pattern adjacent to the p.sup.+ -type polysilicon gate layer.
    • 提供本发明以消除当在单个器件中蚀刻多个栅极材料时在蚀刻之前和之后不同的尺寸变化率而将发生的光学邻近效应。 在提取待校正区域之后,提取n +型多晶硅栅极层。 然后,从n +型多晶硅栅极层到可以是p +型多晶硅栅极层的与其相邻的图案计算距离,从而参照n +型多晶硅栅极层的校正表来校正n +型多晶硅栅极层的尺寸 图案与n +型多晶硅栅极层相邻。 之后,提取p +型多晶硅栅极层。 然后,从p +型多晶硅栅极层到与其相邻的图案,其可以是n +型多晶硅栅极层,从而根据用于的p +型多晶硅栅极层的校正表来校正p +型多晶硅栅极层的尺寸, 图案与p +型多晶硅栅极层相邻。
    • 3. 发明授权
    • Method for designing Levenson photomask
    • 设计Levenson光掩模的方法
    • US6004701A
    • 1999-12-21
    • US46794
    • 1998-03-24
    • Taiga UnoKiyomi KoyamaKazuko YamamotoSatoshi TanakaSachiko KobayashiKoji Hashimoto
    • Taiga UnoKiyomi KoyamaKazuko YamamotoSatoshi TanakaSachiko KobayashiKoji Hashimoto
    • G03F1/30G03F1/68H01L21/027G03F9/00G06F17/50
    • G03F1/30
    • In a Levenson photomask design method of partially forming a plurality of opening patterns for passing incident light in a light-shielding film for shielding the incident light, and arranging, on some patterns, phase shifters, line segment pairs of different patterns which are adjacent to each other within a predetermined distance R are extracted in units of line segments obtained by dividing the patterns. A pattern within a predetermined distance S from the central point of the opposite region of a line segment pair of interest in a direction perpendicular to the line segments is obtained. The obtained pattern is subjected to a process simulation to obtain resolution easiness representing the easiness in resolving the adjacent patterns. On the basis of the resolution easiness obtained for the adjacent pattern pair within the distance R, a phase shifter is arranged in ascending order of resolution easiness to give a phase difference. Resolution suitable for the exposure condition used can be obtained by a simple method. When the shifter arrangement is determined in consideration of the resolution easiness, a high-resolution shifter arrangement can be realized for a Levenson phase shift mask.
    • 在莱文森光掩模设计方法中,部分地形成用于使入射光入射到遮光膜中的入射光的多个开口图案,用于屏蔽入射光,并且在某些图案上布置移相器,与不同图案相邻的线段对 以规定的距离R为单位,以通过划分图案而得到的线段为单位提取。 获得与垂直于线段的方向相关的线段对的相对区域的中心点的预定距离S内的图案。 对所获得的图案进行处理模拟以获得表示分辨相邻图案的容易性的分辨率容易度。 基于在距离R内对相邻图案对获得的分辨率容易度,移位器按分辨率的顺序排列顺序排列以给出相位差。 可以通过简单的方法获得适合于所使用的曝光条件的分辨率。 考虑到分辨率容易度来确定移位器装置时,可以实现对莱文森相移掩模的高分辨率移位器装置。
    • 4. 发明授权
    • Mask data design method
    • 进行自动校正处理
    • US06243855B1
    • 2001-06-05
    • US09161959
    • 1998-09-29
    • Sachiko KobayashiTaiga UnoKazuko YamamotoKoji Hashimoto
    • Sachiko KobayashiTaiga UnoKazuko YamamotoKoji Hashimoto
    • G06F760
    • G03F7/70441G03F1/36
    • A correction target segment extracted from the design pattern is divided into lengths suited for correction. If the arrangement of the divided segments is a one-dimensional pattern, a correction value is obtained by conducting a one-dimensional process simulation to an arrangement within a predetermined distance from a divided segment in perpendicular direction. If the arrangement of the divided segments is a two-dimensional pattern, a correction value is obtained by two-dimensionally extracting a pattern included in a rectangular region having a predetermined distance from one point on the divided segment in perpendicular and horizontal directions and by conducting a two-dimensional process simulation to the extracted pattern.
    • 从设计图案提取的校正目标片段被划分为适合于校正的长度。 如果分割段的排列是一维图案,则通过对垂直方向上的分割段的预定距离内的排列进行一维处理模拟来获得校正值。 如果分割的片段的排列是二维图案,则通过二维地提取包括在具有预定距离的矩形区域中的图案,从而在垂直和水平方向上分割片段上的一个点,并且通过导线 对提取的图案进行二维过程模拟。
    • 10. 发明申请
    • Mask manufacturing system, mask data creating method and manufacturing method of semiconductor device
    • 掩模制造系统,掩模数据创建方法和半导体器件的制造方法
    • US20070124718A1
    • 2007-05-31
    • US11440086
    • 2006-05-25
    • Sachiko KobayashiToshiya Kotani
    • Sachiko KobayashiToshiya Kotani
    • G06F17/50
    • G03F1/68G03F1/36
    • A mask manufacturing system and a mask data creating method reusing data for processing information and environment in the past to reduce a photomask developing period, and a manufacturing method of a semiconductor device are disclosed. According to one aspect of the present invention, it is provided a mask manufacturing system comprising a storage device storing processing data for semiconductor integrated circuits processed in the past, a plurality of operation processing modules, a module selecting section selecting at least one operation processing modules, an optical proximity effect correction section executing optical proximity effect correction to a processing object data and generating a correction data by utilizing past correction information applied for a stored data equivalent to the processing object data, a converting section converting the processing object data into mask data, and a drawing system drawing a mask pattern based on the mask data.
    • 掩模制造系统和掩模数据创建方法重复利用用于处理信息和环境的数据以减少光掩模生长期,以及半导体器件的制造方法。 根据本发明的一个方面,提供了一种掩模制造系统,包括存储用于过去处理的半导体集成电路的处理数据的存储装置,多个操作处理模块,模块选择部分,其选择至少一个操作处理模块 光学接近效应校正部分,对处理对象数据执行光学邻近效应校正,并通过利用应用于与处理对象数据相当的存储数据的过去校正信息产生校正数据;转换部分,将处理对象数据转换成掩模数据 以及基于掩模数据绘制掩模图案的绘图系统。