Reducing damage to ulk dielectric during cross-linked polymer removal
    1.
    发明授权
    Reducing damage to ulk dielectric during cross-linked polymer removal 有权
    在交联聚合物去除期间减少对ulk电介质的损伤

    公开(公告)号:US07253100B2

    公开(公告)日:2007-08-07

    申请号:US11164290

    申请日:2005-11-17

    IPC分类号: H10L21/4763

    摘要: Methods are disclosed for reducing damage to an ultra-low dielectric constant (ULK) dielectric during removal of a planarizing layer such as a crosslinked polymer. The methods at least partially fill an opening with an at most lightly crosslinked polymer, followed by the planarizing layer. When the at most lightly crosslinked polymer and planarizing layer are removed, the at most lightly crosslinked polymer removal is easier than removal of the planarizing layer, i.e., crosslinked polymer, and does not damage the surrounding dielectric compared to removal chemistries used for the crosslinked polymer.

    摘要翻译: 公开了减少在去除平坦化层例如交联聚合物期间对超低介电常数(ULK)电介质的损伤的方法。 该方法至少部分地用至少轻度交联的聚合物填充开口,随后是平坦化层。 当除去至多轻度交联的聚合物和平坦化层时,与用于交联聚合物的去除化学物质相比,去除至多轻度交联的聚合物去除比去除平坦化层即交联聚合物更容易,并且不损坏周围的电介质 。

    Method to create region specific exposure in a layer
    7.
    发明授权
    Method to create region specific exposure in a layer 有权
    在图层中创建区域特定曝光的方法

    公开(公告)号:US07977032B2

    公开(公告)日:2011-07-12

    申请号:US10906268

    申请日:2005-02-11

    IPC分类号: G03F7/20

    CPC分类号: G03F7/2022

    摘要: A method of selectively altering material properties of a substrate in one region while making a different alteration of material properties in an adjoining region is provided. The method includes selectively masking a first portion of the substrate during a first exposure and selectively masking a second portion of the substrate during a second exposure. Additionally, a mask may be formed having more than one thickness where each thickness will selectively reduce the amount of energy from a blanket exposure of the substrate thereby allowing a substrate to receive different levels of energy dosage in a single blanket exposure.

    摘要翻译: 提供了一种在邻接区域中对材料性质进行不同的改变的同时选择性地改变一个区域中的衬底的材料特性的方法。 该方法包括在第一曝光期间选择性地掩蔽衬底的第一部分,并且在第二次曝光期间选择性地掩蔽衬底的第二部分。 另外,可以形成具有多于一个厚度的掩模,其中每个厚度将选择性地减少来自衬底的覆盖曝光的能量的量,从而允许衬底在单次覆盖曝光中接收不同水平的能量。