LINE EDGE ROUGHNESS REDUCTION FOR TRENCH ETCH
    1.
    发明申请
    LINE EDGE ROUGHNESS REDUCTION FOR TRENCH ETCH 审中-公开
    线边缘粗糙度减少

    公开(公告)号:WO2005050700A3

    公开(公告)日:2005-12-01

    申请号:PCT/US2004036746

    申请日:2004-11-03

    Abstract: A method for etching a trench (314, Fig. 3B) to a trench depth (318, Fig. 3B) in a dielectric layer (308, Fig. 3B) over a substrate (304, Fig. 3B) is provided. An ARC (310, Fig. 3B) is applied over the dielectric layer (308, Fig. 3B). A photoresist mask (312, Fig. 3B) is formed on the ARC (310, Fig. 3B), where the photoresist mask has a thickness. The ARC is etched through. A trench (314, Fig. 3B) is etched into the dielectric layer with a dielectric to photoresist etch selectivity between 1:1 and 2:1.

    Abstract translation: 提供了一种用于在衬底(304,图3B)上的介电层(图3B中的308)蚀刻沟槽(314,图3B)到沟槽深度(318,图3B)的方法。 将ARC(图3B)310施加在电介质层(图3B的308)上。 在ARC(310,图3B))上形成光致抗蚀剂掩模(312,图3B),其中光致抗蚀剂掩模具有厚度。 ARC蚀刻通过。 在介质层中蚀刻具有介于1:1和2:1之间的光致抗蚀剂蚀刻选择性的沟槽(314,图3B)。

    LINE EDGE ROUGHNESS REDUCTION FOR TRENCH ETCH
    3.
    发明公开
    LINE EDGE ROUGHNESS REDUCTION FOR TRENCH ETCH 审中-公开
    LINIENÄTZ-RAUHIGKEITREDUKTIONFÜRDIEGRABENÄTZUNG

    公开(公告)号:EP1683194A4

    公开(公告)日:2008-06-25

    申请号:EP04810317

    申请日:2004-11-03

    Applicant: LAM RES CORP

    Abstract: A method for etching a trench (314, Fig. 3B) to a trench depth (318, Fig. 3B) in a dielectric layer (308, Fig. 3B) over a substrate (304, Fig. 3B) is provided. An ARC (310, Fig. 3B) is applied over the dielectric layer (308, Fig. 3B). A photoresist mask (312, Fig. 3B) is formed on the ARC (310, Fig. 3B), where the photoresist mask has a thickness. The ARC is etched through. A trench (314, Fig. 3B) is etched into the dielectric layer with a dielectric to photoresist etch selectivity between 1:1 and 2:1.

    Abstract translation: 提供了用于在衬底(304,图3B)上方的介电层(308,图3B)中蚀刻沟槽(314,图3B)至沟槽深度(318,图3B)的方法。 在介电层(308,图3B)上施加ARC(310,图3B)。 在ARC(310,图3B)上形成光致抗蚀剂掩模(312,图3B),其中光致抗蚀剂掩模具有厚度。 ARC被蚀刻穿过。 用介电材料将沟槽(图3B中的314)蚀刻到介电层中,使光致抗蚀剂蚀刻选择性在1:1和2:1之间。

Patent Agency Ranking