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    • 42. 发明授权
    • Method of forming polymer features by directed self-assembly of block copolymers
    • 通过嵌段共聚物的定向自组装形成聚合物特征的方法
    • US08226838B2
    • 2012-07-24
    • US12061693
    • 2008-04-03
    • Joy ChengWilliam D. HinsbergHo-Cheol KimCharles T. RettnerDaniel P. Sanders
    • Joy ChengWilliam D. HinsbergHo-Cheol KimCharles T. RettnerDaniel P. Sanders
    • C03C15/00
    • G03F7/0002B82Y10/00B82Y40/00
    • Disclosed are methods of forming polymer structures comprising: applying a solution of a block copolymer assembly comprising at least one block copolymer to a neutral substrate having a chemical pattern thereon, the chemical pattern comprising alternating pinning and neutral regions that are chemically distinct and have a first spatial frequency given by the number of paired sets of pinning and neutral regions along a given direction on the substrate; and forming domains of the block copolymer that form by lateral segregation of the blocks in accordance with the underlying chemical pattern, wherein at least one domain of the block copolymer assembly has an affinity for the pinning regions, wherein a structure extending across the chemical pattern is produced, the structure having a uniform second spatial frequency given by the number of repeating sets of domains along the given direction that is at least twice that of the first spatial frequency.
    • 公开了形成聚合物结构的方法,包括:将包含至少一种嵌段共聚物的嵌段共聚物组合物溶液施加到其上具有化学图案的中性衬底上,所述化学图案包括化学上不同的交替的钉扎和中性区域,并且具有第一 空间频率由衬底上沿着给定方向的成套组钉扎和中性区域的数量给出; 以及通过根据下面的化学图案横向分离块而形成嵌段共聚物的结构域,其中嵌段共聚物组合物的至少一个结构域对于钉扎区域具有亲和力,其中横跨化学图案延伸的结构是 所述结构具有由给定方向上的至少是第一空间频率的两倍的畴的重复集合的数量给出的统一的第二空间频率。
    • 45. 发明申请
    • METHOD FOR IMPROVING SELF-ASSEMBLED POLYMER FEATURES
    • 改善自组装聚合物特征的方法
    • US20120103935A1
    • 2012-05-03
    • US12913835
    • 2010-10-28
    • Joy ChengHayato NamaiDaniel P. Sanders
    • Joy ChengHayato NamaiDaniel P. Sanders
    • B05D3/10
    • B81C1/00031B81C2201/0149H01L21/0271H01L21/0337H01L21/0338
    • A method for processing a structure. The structure is formed and includes a substrate, a substructure having a sidewall and disposed on the substrate, a first polymer structure disposed on the substrate, and a second polymer structure disposed on the substrate such that the first polymer structure is disposed between the sidewall and the second polymer structure. An aspect ratio of the first polymer structure, the second polymer structure, or both is reduced in a reducing step. One polymer structure (i.e., the first polymer structure or the second polymer structure) is selectively removed from the structure such that a remaining polymer structure (i.e., the second polymer structure or the first polymer structure) remains disposed on the external surface of the substrate after the one polymer structure has been selectively removed, wherein the aspect ratio of the remaining polymer structure was reduced in the reducing step.
    • 一种处理结构的方法。 该结构被形成并且包括衬底,具有侧壁并设置在衬底上的子结构,设置在衬底上的第一聚合物结构和设置在衬底上的第二聚合物结构,使得第一聚合物结构设置在侧壁和 第二聚合物结构。 在还原步骤中,第一聚合物结构,第二聚合物结构或两者的纵横比减小。 从结构中选择性地除去一种聚合物结构(即,第一聚合物结构或第二聚合物结构),使得剩余的聚合物结构(即,第二聚合物结构或第一聚合物结构)保留在基材的外表面上 在选择性去除一种聚合物结构之后,在还原步骤中其余聚合物结构的纵横比降低。