Double patterning strategy for contact hole and trench in photolithography
    31.
    发明授权
    Double patterning strategy for contact hole and trench in photolithography 有权
    光刻中接触孔和沟槽的双重图案化策略

    公开(公告)号:US08008206B2

    公开(公告)日:2011-08-30

    申请号:US12873429

    申请日:2010-09-01

    IPC分类号: H01L21/311

    摘要: A method of lithography patterning includes forming a hard mask layer on a material layer and forming a capping layer on the hard mask layer. The capping layer does not react with oxygen gas during a photoresist ashing process. The capping layer is patterned by using a first resist pattern and a second resist pattern as etch masks. After the capping layer is patterned, the hard mask layer is patterned by using the patterned capping layer as an etch mask.

    摘要翻译: 光刻图案的方法包括在材料层上形成硬掩模层,并在硬掩模层上形成覆盖层。 在光刻胶灰化过程中,封盖层不与氧气反应。 通过使用第一抗蚀剂图案和第二抗蚀剂图案作为蚀刻掩模来对覆盖层进行图案化。 在图案化覆盖层之后,通过使用图案化覆盖层作为蚀刻掩模来对硬掩模层进行图案化。

    Protection layer to prevent under-layer damage during deposition
    33.
    发明授权
    Protection layer to prevent under-layer damage during deposition 有权
    保护层防止沉积过程中的下层损伤

    公开(公告)号:US06573177B1

    公开(公告)日:2003-06-03

    申请号:US10076629

    申请日:2002-02-19

    IPC分类号: H01L216763

    摘要: A semiconductor manufacturing method that includes defining a substrate, depositing a first layer over the substrate, providing a protection layer over the first layer, providing a layer of photoresist over the protection layer, patterning and defining the photoresist layer to form at least one photoresist structure having at least one substantially vertical sidewall and one substantially horizontal top, depositing a photo-insensitive material over the at least one photoresist structure and the protection layer with a chemical-vapor deposition process having at least one reactive gas, wherein an amount of the photo-insensitive material deposited on the top of the photoresist structure is substantially greater than an amount of the photo-insensitive material deposited on the at least one sidewall of the photoresist structure, and wherein the protection layer is non-reactive with the at least one reactive gas, and anisotropically etching the protection layer and the layer to be etched.

    摘要翻译: 一种半导体制造方法,其包括限定衬底,在所述衬底上沉积第一层,在所述第一层上方提供保护层,在所述保护层上提供光致抗蚀剂层,图案化和限定所述光致抗蚀剂层以形成至少一个光致抗蚀剂结构 具有至少一个基本上垂直的侧壁和一个基本上水平的顶部,在具有至少一个反应性气体的化学气相沉积工艺的情况下在所述至少一个光致抗蚀剂结构和所述保护层上沉积光不敏感材料,其中所述照片的量 沉积在光致抗蚀剂结构的顶部上的不敏感材料基本上大于沉积在光致抗蚀剂结构的至少一个侧壁上的光敏材料的量,并且其中保护层与至少一个反应性 气体和各向异性蚀刻保护层和被蚀刻层。