Double self aligned via patterning
    5.
    发明授权
    Double self aligned via patterning 有权
    双重自对准通过图案化

    公开(公告)号:US09219007B2

    公开(公告)日:2015-12-22

    申请号:US13913823

    申请日:2013-06-10

    Abstract: A method including forming a penta-layer hardmask above a substrate, the penta-layer hardmask comprising a first hardmask layer above a second hardmask layer; forming a trench pattern in the first hardmask layer; transferring a first via bar pattern from a first photo-resist layer above the penta-layer hardmask into the second hardmask layer resulting in a first via pattern, the first via pattern in the second hardmask layer overlapping the trench pattern and being self-aligned on two sides by the trench pattern in the first hardmask layer; and transferring the first via pattern from the second hardmask layer into the substrate resulting in a self-aligned via opening, the self-aligned via opening being self-aligned on all sides by the first via pattern in the second hardmask layer.

    Abstract translation: 一种包括在衬底上形成五层硬掩模的方法,所述五层硬掩模包括在第二硬掩模层上方的第一硬掩模层; 在第一硬掩模层中形成沟槽图案; 将第一通孔条图案从五层硬掩模上方的第一光致抗蚀剂层转移到第二硬掩模层中,产生第一通孔图案,第二硬掩模层中的第一通孔图案与沟槽图案重叠并且在 双面通过第一个硬掩模层中的沟槽图案; 以及将所述第一通孔图案从所述第二硬掩模层转移到所述衬底中,从而产生自对准的通孔,所述自对准通孔开口通过所述第二硬掩模层中的所述第一通孔图案在所有侧面上自对准。

    Dual hard mask lithography process
    6.
    发明授权
    Dual hard mask lithography process 有权
    双硬掩模光刻工艺

    公开(公告)号:US09373580B2

    公开(公告)日:2016-06-21

    申请号:US14140060

    申请日:2013-12-24

    Abstract: A first metallic hard mask layer over an interconnect-level dielectric layer is patterned with a line pattern. At least one dielectric material layer, a second metallic hard mask layer, a first organic planarization layer (OPL), and a first photoresist are applied above the first metallic hard mask layer. A first via pattern is transferred from the first photoresist layer into the second metallic hard mask layer. A second OPL and a second photoresist are applied and patterned with a second via pattern, which is transferred into the second metallic hard mask layer. A first composite pattern of the first and second via patterns is transferred into the at least one dielectric material layer. A second composite pattern that limits the first composite pattern with the areas of the openings in the first metallic hard mask layer is transferred into the interconnect-level dielectric layer.

    Abstract translation: 在互连级介质层上的第一金属硬掩模层用线图案图案化。 在第一金属硬掩模层上方施加至少一个介电材料层,第二金属硬掩模层,第一有机平坦化层(OPL)和第一光致抗蚀剂。 第一通孔图案从第一光致抗蚀剂层转移到第二金属硬掩模层中。 第二OPL和第二光致抗蚀剂被施加和图案化,第二通孔图案被转移到第二金属硬掩模层中。 第一和第二通孔图案的第一复合图案被转移到至少一个介电材料层中。 将第一复合图案与第一金属硬掩模层中的开口的面积限制的第二复合图案被转移到互连级介质层中。

    Double self-aligned via patterning
    7.
    发明授权
    Double self-aligned via patterning 有权
    双重自对准通过图案化

    公开(公告)号:US09257334B2

    公开(公告)日:2016-02-09

    申请号:US14837865

    申请日:2015-08-27

    Abstract: A method including forming a penta-layer hardmask above a substrate, the penta-layer hardmask comprising a first hardmask layer above a second hardmask layer; forming a trench pattern in the first hardmask layer; transferring a first via bar pattern from a first photo-resist layer above the penta-layer hardmask into the second hardmask layer resulting in a first via pattern, the first via pattern in the second hardmask layer overlapping the trench pattern and being self-aligned on two sides by the trench pattern in the first hardmask layer; and transferring the first via pattern from the second hardmask layer into the substrate resulting in a self-aligned via opening, the self-aligned via opening being self-aligned on all sides by the first via pattern in the second hardmask layer.

    Abstract translation: 一种包括在衬底上形成五层硬掩模的方法,所述五层硬掩模包括在第二硬掩模层上方的第一硬掩模层; 在第一硬掩模层中形成沟槽图案; 将第一通孔条图案从五层硬掩模上方的第一光致抗蚀剂层转移到第二硬掩模层中,产生第一通孔图案,第二硬掩模层中的第一通孔图案与沟槽图案重叠并且在 双面通过第一个硬掩模层中的沟槽图案; 以及将所述第一通孔图案从所述第二硬掩模层转移到所述衬底中,从而产生自对准的通孔,所述自对准通孔开口通过所述第二硬掩模层中的所述第一通孔图案在所有侧面上自对准。

    DOUBLE SELF ALIGNED VIA PATTERNING
    8.
    发明申请
    DOUBLE SELF ALIGNED VIA PATTERNING 有权
    双向自对准通过方式

    公开(公告)号:US20140363969A1

    公开(公告)日:2014-12-11

    申请号:US13913823

    申请日:2013-06-10

    Abstract: A method including forming a penta-layer hardmask above a substrate, the penta-layer hardmask comprising a first hardmask layer above a second hardmask layer; forming a trench pattern in the first hardmask layer; transferring a first via bar pattern from a first photo-resist layer above the penta-layer hardmask into the second hardmask layer resulting in a first via pattern, the first via pattern in the second hardmask layer overlapping the trench pattern and being self-aligned on two sides by the trench pattern in the first hardmask layer; and transferring the first via pattern from the second hardmask layer into the substrate resulting in a self-aligned via opening, the self-aligned via opening being self-aligned on all sides by the first via pattern in the second hardmask layer.

    Abstract translation: 一种包括在衬底上形成五层硬掩模的方法,所述五层硬掩模包括在第二硬掩模层上方的第一硬掩模层; 在第一硬掩模层中形成沟槽图案; 将第一通孔条图案从五层硬掩模上方的第一光致抗蚀剂层转移到第二硬掩模层中,产生第一通孔图案,第二硬掩模层中的第一通孔图案与沟槽图案重叠并且在 双面通过第一个硬掩模层中的沟槽图案; 以及将所述第一通孔图案从所述第二硬掩模层转移到所述衬底中,从而产生自对准的通孔,所述自对准通孔打开通过所述第二硬掩模层中的所述第一通孔图案在所有侧面上自对准。

    DOUBLE SELF ALIGNED VIA PATTERNING
    10.
    发明申请
    DOUBLE SELF ALIGNED VIA PATTERNING 有权
    双向自对准通过方式

    公开(公告)号:US20150371896A1

    公开(公告)日:2015-12-24

    申请号:US14837827

    申请日:2015-08-27

    Abstract: A method including forming a penta-layer hardmask above a substrate, the penta-layer hardmask comprising a first hardmask layer above a second hardmask layer; forming a trench pattern in the first hardmask layer; transferring a first via bar pattern from a first photo-resist layer above the penta-layer hardmask into the second hardmask layer resulting in a first via pattern, the first via pattern in the second hardmask layer overlapping the trench pattern and being self-aligned on two sides by the trench pattern in the first hardmask layer; and transferring the first via pattern from the second hardmask layer into the substrate resulting in a self-aligned via opening, the self-aligned via opening being self-aligned on all sides by the first via pattern in the second hardmask layer.

    Abstract translation: 一种包括在衬底上形成五层硬掩模的方法,所述五层硬掩模包括在第二硬掩模层上方的第一硬掩模层; 在第一硬掩模层中形成沟槽图案; 将第一通孔条图案从五层硬掩模上方的第一光致抗蚀剂层转移到第二硬掩模层中,产生第一通孔图案,第二硬掩模层中的第一通孔图案与沟槽图案重叠并且在 双面通过第一个硬掩模层中的沟槽图案; 以及将所述第一通孔图案从所述第二硬掩模层转移到所述衬底中,从而产生自对准的通孔,所述自对准通孔开口通过所述第二硬掩模层中的所述第一通孔图案在所有侧面上自对准。

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