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    • 3. 发明授权
    • Imprinting of supported and free-standing 3-D micro- or nano-structures
    • 支持和独立的3-D微结构或纳米结构的印刷
    • US08025831B2
    • 2011-09-27
    • US10852448
    • 2004-05-24
    • Yen Peng KongHong Yee LowStella W. PangAlbert F. Yee
    • Yen Peng KongHong Yee LowStella W. PangAlbert F. Yee
    • B27N3/08B28B5/00A61M25/00B28B5/02B32B3/00B32B5/16
    • A61M25/00B27N3/08B28B3/06B81C99/0085B81C2201/034B81C2203/032B81C2203/038B82Y10/00B82Y40/00G03F7/0002Y10T428/24479Y10T428/254
    • The present invention is directed to micro- and nano-scale imprinting methods and the use of such methods to fabricate supported and/or free-standing 3-D micro- and/or nano-structures of polymeric, ceramic, and/or metallic materials. In some embodiments, a duo-mold approach is employed in the fabrication of these structures. In such methods, surface treatments are employed to impart differential surface energies to different molds and/or different parts of the mold(s). Such surface treatments permit the formation of three-dimensional (3-D) structures through imprinting and the transfer of such structures to a substrate. In some or other embodiments, such surface treatments and variation in glass transition temperature of the polymers used can facilitate separation of the 3-D structures from the molds to form free-standing micro- and/or nano-structures individually and/or in a film. In some or other embodiments, a “latch-on” assembly technique is utilized to form supported and/or free-standing stacked micro- and/or nano-structures that enable the assembly of polymers without a glass transition temperature and eliminate the heating required to assemble thermoplastic polymers.
    • 本发明涉及微尺度和纳米级压印方法,并且使用这种方法来制造聚合物,陶瓷和/或金属材料的负载和/或独立的3-D微观和/或纳米结构 。 在一些实施例中,在制造这些结构中采用双模方法。 在这种方法中,使用表面处理以将不同的表面能赋予模具的不同模具和/或模具的不同部分。 这种表面处理允许通过压印形成三维(3-D)结构并将这种结构转移到基底上。 在一些或其它实施方案中,所使用的聚合物的这种表面处理和玻璃化转变温度的变化可促进3-D结构与模具的分离,以单独形成独立的和/或纳米结构,并且/ 电影。 在一些或其它实施方案中,使用“闭锁”组装技术来形成支撑和/或独立堆叠的微结构和/或纳米结构,其能够组装聚合物而不具有玻璃化转变温度并消除所需的加热 组装热塑性聚合物。
    • 6. 发明授权
    • Methods of creating patterns on substrates and articles of manufacture resulting therefrom
    • 在由此产生的基材和制品上形成图案的方法
    • US06860956B2
    • 2005-03-01
    • US10444505
    • 2003-05-23
    • Lirong BaoLi TanXudong HuangYen Peng KongLingjie Jay GuoStella W. PangAlbert Yee
    • Lirong BaoLi TanXudong HuangYen Peng KongLingjie Jay GuoStella W. PangAlbert Yee
    • B05D3/10B29C33/00B44C1/165B44C3/08C03C17/30G03F20060101G03F7/00B32B31/20
    • G03F7/0002B82Y10/00B82Y30/00B82Y40/00
    • Methods of creating patterns on substrates are presented, and articles of manufacture resulting therefrom. One method comprises applying a first surface energy modifier to an applicator to form a coating on the applicator; contacting the coating with a receiving member, the receiving member having a topography, the coating only contacting and remaining on at least some protrusions; exposing the first modified receiving member to a second surface energy modifier, thereby forming a second modified receiving member having surface modified recesses; applying a composition comprising a polymeric material to the second modified receiving member, the composition substantially conforming to the topography of the surface modified protrusions and the surface modified recesses; and contacting the composition-coated, surface modified protrusions with a substrate for a time and under conditions sufficient to transfer the polymeric material on protrusions to the substrate. Because the surface energy of the sidewalls is lower than that on the protrusions, polymer dewetting from the sidewalls is promoted, which makes the polymer film discontinuous along the edges of patterns. Therefore, inked polymer patterns from the protrusions of the mold show very smooth edges and smaller dimensions compared to that of the mold.
    • 提出了在基板上产生图案的方法以及由此产生的制品。 一种方法包括将第一表面能量调节剂施加到施用器以在施用器上形成涂层; 使所述涂层与接收构件接触,所述接收构件具有形貌,所述涂层仅接触并保留在至少一些突起上; 将第一改进的接收构件暴露于第二表面能改变器,由此形成具有表面改性凹槽的第二改进的接收构件; 将包含聚合物材料的组合物施加到所述第二改性接收构件,所述组合物基本上符合所述表面改性突起和所述表面改性凹槽的形貌; 并且将组合物涂覆的表面改性突起与衬底接触足以将聚合物材料在突起上转移到衬底上的时间和条件下。 由于侧壁的表面能低于突起上的表面能,因此促进了从侧壁的聚合物去湿,这使得聚合物膜沿着图案的边缘不连续。 因此,与模具相比,来自模具的凸起的上色聚合物图案显示出非常光滑的边缘和更小的尺寸。