Approach to formulating irradiation sensitive positive resists
    2.
    发明授权
    Approach to formulating irradiation sensitive positive resists 失效
    制定辐射敏感阳性抗蚀剂的方法

    公开(公告)号:US06268436B1

    公开(公告)日:2001-07-31

    申请号:US09473225

    申请日:1999-12-27

    IPC分类号: C08L6500

    摘要: The present invention is directed to a high-performance irradiation sensitive positive-tone resist and to a method of formulating the same. In one aspect, the polymer resin composition of the present invention comprises a blend of at least two miscible aqueous base soluble polymer resins, wherein one of said aqueous base soluble polymer resins of said blend is partially protected with a high activation energy protecting group and the other aqueous base soluble polymer resin of said blend is partially protected with a low activation energy protecting group. A chemically amplified resist system comprising said polymer resin composition; at least one acid generator; and a solvent is also provided herein.

    摘要翻译: 本发明涉及一种高性能照射敏感正性抗蚀剂及其制备方法。 一方面,本发明的聚合物树脂组合物包含至少两种可混溶的水溶性可溶性聚合物树脂的共混物,其中所述共混物的所述水溶性基础可溶性聚合物树脂之一部分地被高活化能保护基团保护,并且 所述共混物的其它水溶性可溶性聚合物树脂部分地被低活化能保护基团保护。 一种包含所述聚合物树脂组合物的化学放大抗蚀剂体系; 至少一种酸发生剂; 并且还提供了溶剂。

    Approach to formulating irradiation sensitive positive resists
    4.
    发明授权
    Approach to formulating irradiation sensitive positive resists 失效
    制定辐射敏感阳性抗蚀剂的方法

    公开(公告)号:US6103447A

    公开(公告)日:2000-08-15

    申请号:US30566

    申请日:1998-02-25

    IPC分类号: G03F7/004 G03F7/039

    摘要: The present invention is directed to a high-performance irradiation sensitive positive-tone resist and to a method of formulating the same. In one aspect, the polymer resin composition of the present invention comprises a blend of at least two miscible aqueous base soluble polymer resins, wherein one of said aqueous base soluble polymer resins of said blend is partially protected with a high activation energy protecting group and the other aqueous base soluble polymer resin of said blend is partially protected with a low activation energy protecting group. A chemically amplified resist system comprising said polymer resin composition; at least one acid generator; and a solvent is also provided herein.

    摘要翻译: 本发明涉及一种高性能照射敏感正性抗蚀剂及其制备方法。 一方面,本发明的聚合物树脂组合物包含至少两种可混溶的水溶性可溶性聚合物树脂的共混物,其中所述共混物的所述水溶性基础可溶性聚合物树脂之一部分地被高活化能保护基保护,并且 所述共混物的其它水溶性可溶性聚合物树脂部分地被低活化能保护基团保护。 一种包含所述聚合物树脂组合物的化学放大抗蚀剂体系; 至少一种酸发生剂; 并且还提供了溶剂。

    Resist formulation which minimizes blistering during etching
    8.
    发明授权
    Resist formulation which minimizes blistering during etching 失效
    抗蚀剂制剂,其最小化蚀刻期间的起泡

    公开(公告)号:US06207353B1

    公开(公告)日:2001-03-27

    申请号:US08987808

    申请日:1997-12-10

    IPC分类号: G03F700

    摘要: A resist formulation minimizes blistering during reactive ion etching processes resulting in an increased amount of polymer by-product deposition. Such processes involve exciting a gaseous fluorocarbon etchant with sufficient energy to form a high-density plasma, and the use of an etchant having a carbon-to-fluorine ratio of at least 0.33. In addition to a conventional photoactive component, resists which minimize blistering under these conditions include a resin binder which is a terpolymer having: (a) units that contain acid-labile groups; (b) units that are free of reactive groups and hydroxyl groups; and (c) units that contribute to aqueous developability of the photoresist. After the photoresist is patterned on the silicon oxide layer and the high-density plasma is formed, the high-density plasma is introduced to the silicon oxide layer to etch at least one opening in the silicon oxide layer. Preferably, the terpolymer is made up of about 70% 4-hydroxystyrene, about 20% styrene, and about 10% t-butylacrylate.

    摘要翻译: 抗蚀剂制剂使反应离子蚀刻过程中的起泡最小化,导致聚合物副产物沉积量增加。 这种方法包括以足够的能量激发气态碳氟化合物蚀刻剂以形成高密度等离子体,以及使用碳 - 氟比至少为0.33的蚀刻剂。 除了常规的光活性组分之外,在这些条件下使泡沫最小化的抗蚀剂包括具有以下三元共聚物的树脂粘合剂:(a)含有酸不稳定基团的单元; (b)不含反应性基团和羟基的单元; 和(c)有助于光致抗蚀剂的水性显影性的单元。 在氧化硅层上形成光致抗蚀剂并形成高密度等离子体之后,将高密度等离子体引入到氧化硅层中以蚀刻氧化硅层中的至少一个开口。 优选地,三元共聚物由约70%的4-羟基苯乙烯,约20%的苯乙烯和约10%的丙烯酸叔丁酯组成。

    Resist development endpoint detection for X-ray lithography
    9.
    发明授权
    Resist development endpoint detection for X-ray lithography 失效
    抵抗X射线光刻的发展端点检测

    公开(公告)号:US5264328A

    公开(公告)日:1993-11-23

    申请号:US874286

    申请日:1992-04-24

    CPC分类号: G03F7/30 Y10S430/168

    摘要: The present invention provides a method for determining the development endpoint in a X-ray lithographic process. Endpoint is determined by visually observing resist test field patterns through a microscope during the developing step. During the developing, changing test field patterns are formed because test field locations each had been exposed simultaneously to different radiation doses. These different doses are produced when radiation passes through a mask containing a plurality of different size radiation attenuators. When the changing test field pattern matches a known pattern, which is correlated to the desired development endpoint, the workpiece is removed from the developing step.

    摘要翻译: 本发明提供了一种用于确定X射线光刻工艺中的显影终点的方法。 通过在显影步骤期间通过显微镜在视觉上观察抗蚀剂测试场图案来确定端点。 在开发期间,形成变化的测试场模式,因为测试场位置各自同时暴露于不同的辐射剂量。 当辐射通过包含多个不同尺寸的辐射衰减器的掩模时,产生这些不同的剂量。 当改变的测试场模式匹配与期望的开发端点相关联的已知模式时,工件从显影步骤中移除。