A METHOD FOR DEFINING PATTERNS FOR CONDUCTIVE PATHS IN A DIELECTRIC LAYER

    公开(公告)号:EP3367429A1

    公开(公告)日:2018-08-29

    申请号:EP17158037.6

    申请日:2017-02-27

    申请人: IMEC vzw

    IPC分类号: H01L21/768 H01L21/311

    摘要: According to an aspect of the present inventive concept there is provided a method for defining patterns for conductive paths in a dielectric layer, the method comprising:
    forming a mask layer above the dielectric layer,
    forming above the mask layer a set of [amorphous silicon] mandrels, each mandrel having a pair of side wall spacers,
    etching the mask layer, wherein the set of mandrels and the side wall spacers act as an etch mask, to form a first set of trenches in the mask layer,
    covering the set of mandrels with a metal oxide planarization layer, the metal oxide planarization layer filling the first set of trenches,
    etching back the metal oxide planarization layer to expose upper surfaces of the set of mandrels,
    removing the set of mandrels by etching, thereby forming trenches in the metal oxide planarization layer, said trenches extending between said pairs of side wall spacers, and
    etching the mask layer, wherein the metal oxide planarization layer acts as an etch mask, to form a second set of trenches in the mask layer.

    SPACER PROCESS FOR ON PITCH CONTACTS AND RELATED STRUCTURES

    公开(公告)号:EP2206142B1

    公开(公告)日:2018-07-18

    申请号:EP08845706.4

    申请日:2008-10-27

    发明人: KIEHLBAUCH, Mark

    IPC分类号: H01L21/033 H01L21/768

    摘要: Methods are disclosed, such as those involving increasing the density of isolated features in an integrated circuit. Also disclosed are structures associated with the methods. In one or more embodiments, contacts are formed on pitch with other structures, such as conductive interconnects. The interconnects may be formed by pitch multiplication. To form the contacts, in some embodiments, a pattern corresponding to some of the contacts is formed in a selectively definable material such as photoresist. The features in the selectively definable material are trimmed to desired dimensions. Spacer material is blanket deposited over the features in the selectively definable material and the deposited material is then etched to leave spacers on sides of the features. The selectively definable material is removed to leave a mask defined by the spacer material. The pattern defined by the spacer material may be transferred to a substrate, to form on pitch contacts. In some embodiments, the on pitch contacts may be used to electrically contact conductive interconnects in the substrate.

    METHOD FOR INTERRUPTING A LINE IN AN INTERCONNECT
    8.
    发明公开
    METHOD FOR INTERRUPTING A LINE IN AN INTERCONNECT 审中-公开
    用于中断互连中的线路的方法

    公开(公告)号:EP3255663A1

    公开(公告)日:2017-12-13

    申请号:EP16173359.7

    申请日:2016-06-07

    申请人: IMEC VZW

    摘要: A method for forming a pattern for an integrated circuit, comprising the steps of:
    a. providing a hardmask layer (3),
    b. overlaying the hard mask layer (3) with a set of parallel material lines (41) delimiting gaps (6) therebetween,
    c. providing a spacer layer (5) following the shape of the material layer (4),
    d. removing a top portion (5t) of the spacer layer (5), thereby forming spacer lines (5I) alternatively separated by material lines (4I) and by gaps (6),
    e. providing a blocking element (7b) in a portion of a gap (6),
    f. etching selectively the hard mask layer (3) by using the material layer (4), the spacer lines (5I) and the blocking element (7b) as a mask, thereby providing a first set of parallel trenches (8) in the hardmask layer (3), wherein a trench (8a) has a blocked portion (3b), and
    g. selectively removing the blocking element (7b).

    摘要翻译: 一种形成集成电路图案的方法,包括以下步骤:a。 提供硬掩模层(3),b。 用一组限定其间的间隙(6)的平行材料线(41)覆盖硬掩模层(3),c。 遵循材料层(4)的形状提供间隔层(5),d。 去除间隔层(5)的顶部(5t),从而形成交替由材料线(4I)和间隙(6)分开的间隔线(5I),e。 在间隙(6)的一部分中提供阻挡元件(7b),f。 通过使用材料层(4),间隔物线(5I)和阻挡元件(7b)作为掩模选择性地刻蚀硬掩模层(3),由此在硬掩模层中提供第一组平行沟槽(8) (3),其中沟槽(8a)具有阻挡部分(3b),以及g。 选择性地移除阻挡元件(7b)。

    CROSS SCAN PROXIMITY CORRECTION WITH EBEAM UNIVERSAL CUTTER
    10.
    发明公开
    CROSS SCAN PROXIMITY CORRECTION WITH EBEAM UNIVERSAL CUTTER 审中-公开
    EBEAM通用切割器的交叉扫描接近度校正

    公开(公告)号:EP3183743A1

    公开(公告)日:2017-06-28

    申请号:EP14900280.0

    申请日:2014-12-22

    申请人: Intel Corporation

    IPC分类号: H01L21/027

    摘要: Lithographic apparatuses suitable for, and methodologies involving, complementary e-beam lithography (CEBL) are described. In an example, a column for an e-beam direct write lithography tool includes a first blanker aperture array (BAA) including a staggered array of openings having a pitch along an array direction. The array direction is orthogonal to a scan direction. Each opening has a first dimension in the array direction. The column also includes a second BAA including a staggered array of openings having the pitch along the array direction. Each opening has a second dimension in the array direction, the second dimension greater than the first dimension.

    摘要翻译: 描述了适合于和互补电子束光刻(CEBL)的方法的光刻设备。 在一个示例中,用于电子束直接写入光刻工具的列包括第一消隐器孔径阵列(BAA),第一消隐器孔径阵列(BAA)包括具有沿阵列方向的间距的交错开口阵列。 阵列方向与扫描方向正交。 每个开口在阵列方向上具有第一维度。 该列还包括第二BAA,其包括具有沿着阵列方向的节距的交错排列的开口。 每个开口在阵列方向上具有第二维度,第二维度大于第一维度。