INTEGRATED CIRCUIT FABRICATION
    2.
    发明申请
    INTEGRATED CIRCUIT FABRICATION 有权
    集成电路制造

    公开(公告)号:US20120193777A1

    公开(公告)日:2012-08-02

    申请号:US13445797

    申请日:2012-04-12

    IPC分类号: H01L23/52

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。

    Integrated circuit fabrication
    3.
    发明授权
    Integrated circuit fabrication 有权
    集成电路制造

    公开(公告)号:US08158476B2

    公开(公告)日:2012-04-17

    申请号:US12850511

    申请日:2010-08-04

    IPC分类号: H01L21/8242

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。

    Integrated circuit fabrication
    4.
    发明授权
    Integrated circuit fabrication 有权
    集成电路制造

    公开(公告)号:US07776683B2

    公开(公告)日:2010-08-17

    申请号:US12119831

    申请日:2008-05-13

    IPC分类号: H01L21/8242

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形末端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。

    Integrated circuit fabrication
    6.
    发明授权
    Integrated circuit fabrication 有权
    集成电路制作

    公开(公告)号:US07611944B2

    公开(公告)日:2009-11-03

    申请号:US11216477

    申请日:2005-08-31

    IPC分类号: H01L21/8242

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。

    INTEGRATED CIRCUIT FABRICATION
    7.
    发明申请
    INTEGRATED CIRCUIT FABRICATION 有权
    集成电路制造

    公开(公告)号:US20080227293A1

    公开(公告)日:2008-09-18

    申请号:US12119831

    申请日:2008-05-13

    IPC分类号: H01L21/768 H01L21/306

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。

    INTEGRATED CIRCUIT FABRICATION
    8.
    发明申请
    INTEGRATED CIRCUIT FABRICATION 有权
    集成电路制造

    公开(公告)号:US20100317193A1

    公开(公告)日:2010-12-16

    申请号:US12850511

    申请日:2010-08-04

    IPC分类号: H01L21/768 H01L21/302

    摘要: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.

    摘要翻译: 用于限定集成电路中的图案的方法包括在衬底的第一区域上使用光刻法在第一光致抗蚀剂层中限定多个特征。 该方法还包括使用音调倍增以在光致抗蚀剂层中的每个特征的下掩蔽层中产生至少两个特征。 下掩蔽层中的特征包括环形端。 该方法还包括用第二光致抗蚀剂层覆盖包括下掩蔽层中的环状末端的衬底的第二区域。 该方法还包括通过下掩蔽层中的特征蚀刻衬底中的沟槽图案,而不在第二区域内进行蚀刻。 沟槽具有沟槽宽度。