Methods for forming fine patterns of a semiconductor device
    1.
    发明授权
    Methods for forming fine patterns of a semiconductor device 有权
    用于形成半导体器件的精细图案的方法

    公开(公告)号:US08785319B2

    公开(公告)日:2014-07-22

    申请号:US13799125

    申请日:2013-03-13

    IPC分类号: H01L21/4763

    摘要: Methods of forming fine patterns are provided. The methods may include forming first hard mask patterns extending in a first direction on a lower layer, forming second hard mask patterns filling gap regions between the first hard mask patterns, forming first mask patterns extending in a second direction perpendicular to the first direction on the first and second hard mask patterns, etching the first hard mask patterns using the first mask patterns as etch masks to form first openings, forming second mask patterns filling the first openings and extending in the second direction, and etching the second hard mask patterns using the second mask patterns as etch masks to form second openings spaced apart from the first openings in a diagonal direction with respect to the first direction.

    摘要翻译: 提供形成精细图案的方法。 所述方法可以包括形成在下层上沿着第一方向延伸的第一硬掩模图案,形成填充第一硬掩模图案之间的间隙区域的第二硬掩模图案,形成沿垂直于第一方向的第二方向延伸的第一掩模图案 第一和第二硬掩模图案,使用第一掩模图案蚀刻第一硬掩模图案作为蚀刻掩模以形成第一开口,形成填充第一开口并在第二方向上延伸的第二掩模图案,以及使用 第二掩模图案作为蚀刻掩模,以在相对于第一方向的对角线方向上形成与第一开口间隔开的第二开口。

    Methods of forming a semiconductor device
    2.
    发明授权
    Methods of forming a semiconductor device 有权
    形成半导体器件的方法

    公开(公告)号:US09034765B2

    公开(公告)日:2015-05-19

    申请号:US13956556

    申请日:2013-08-01

    IPC分类号: H01L21/311 H01L21/302

    CPC分类号: H01L21/302 H01L21/0337

    摘要: A method of forming a semiconductor device includes first preliminary holes over an etch target, the first preliminary holes arranged as a plurality of rows in a first direction, forming dielectric patterns each filling one of the first preliminary holes, sequentially forming a barrier layer and a sacrificial layer on the dielectric patterns, forming etch control patterns between the dielectric patterns, forming second preliminary holes by etching the sacrificial layer, each of the second preliminary holes being in a region defined by at least three dielectric patterns adjacent to each other, and etching the etch target layer corresponding to positions of the first and second preliminary holes to form contact holes.

    摘要翻译: 形成半导体器件的方法包括在蚀刻靶上的第一预备孔,第一预备孔在第一方向上排列成多行,形成各自填充一个第一预备孔的电介质图案,依次形成阻挡层和 在电介质图案上形成牺牲层,在电介质图案之间形成蚀刻控制图案,通过蚀刻牺牲层形成第二预备孔,每个第二预备孔位于由彼此相邻的至少三个电介质图案限定的区域中,以及蚀刻 所述蚀刻目标层对应于所述第一和第二预备孔的位置以形成接触孔。

    Methods for forming fine patterns of a semiconductor device
    3.
    发明授权
    Methods for forming fine patterns of a semiconductor device 有权
    用于形成半导体器件的精细图案的方法

    公开(公告)号:US08614148B2

    公开(公告)日:2013-12-24

    申请号:US13733376

    申请日:2013-01-03

    IPC分类号: H01L21/02

    摘要: A method may include forming first hard mask patterns and second hard mask patterns extending in a first direction and repeatedly and alternately arranged on a lower layer, forming third mask patterns extending in a second direction perpendicular to the first direction on the first and second hard mask patterns, etching the first hard mask patterns using the third mask patterns to form first openings, forming filling patterns filling the first openings and gap regions between the third mask patterns, forming spacers on both sidewalls of each of the filling patterns, after removing the third mask patterns, and etching the second hard mask patterns using the filling patterns and the spacers to form second openings.

    摘要翻译: 一种方法可以包括形成第一硬掩模图案和在第一方向上延伸并重复并交替地布置在下层上的第一硬掩模图案和第二硬掩模图案,在第一和第二硬掩模上形成沿垂直于第一方向的第二方向延伸的第三掩模图案 使用第三掩模图案蚀刻第一硬掩模图案以形成第一开口,形成填充第一开口和第三掩模图案之间的间隙区域的填充图案,在移除第三掩模图案的每个填充图案的两个侧壁上之后形成间隔物 掩模图案,并且使用填充图案和间隔件蚀刻第二硬掩模图案以形成第二开口。