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    • 7. 发明申请
    • Continuously Producing Digital Micro-Scale Patterns On A Thin Polymer Film
    • 在薄膜上连续生产数字微尺度图案
    • US20150021161A1
    • 2015-01-22
    • US13944851
    • 2013-07-17
    • Palo Alto Research Center Incorporated
    • David Mathew JohnsonArmin R. VolkelJohn Steven Paschkewitz
    • B01J19/08B01J19/12
    • B01J19/088B01J19/123G03F7/0002
    • A liquid thin film is disposed on a conveyor surface (e.g., a roller or belt) that moves the thin film into a precisely controlled gap (or nip) region in which the liquid thin film is subjected to an electric field that causes the liquid to undergo Electrohydrodynamic (EHD) patterning deformation, whereby portions of the liquid thin film form patterned liquid features having a micro-scale patterned shape. A curing mechanism (e.g., a UV laser) is used to solidify (e.g., in the case of polymer thin films, cross-link) the patterned liquid inside or immediately after exiting the gap region. The patterned structures are either connected by an intervening web as part of a polymer sheet, or separated into discreet micro-scale structures. Nanostructures (e.g., nanotubes or nanowires) disposed in the polymer become vertically oriented during the EHD patterning process. Segmented electrodes and patterned charges are utilized to provide digital patterning control.
    • 液体薄膜设置在将薄膜移动到精确控制的间隙(或辊隙)区域中的输送机表面(例如,辊或带)上,在该区域中液体薄膜经受电场,使得液体 进行电液动力学(EHD)图案变形,由此部分液体薄膜形成具有微尺度图案形状的图案化液体特征。 使用固化机构(例如,UV激光)将图案化液体固化(例如,在聚合物薄膜的情况下,将图案化的液体交联)在离开间隙区域之后或之后。 图案化结构通过作为聚合物片材的一部分的介入纤维网连接,或分离成分立的微尺度结构。 设置在聚合物中的纳米结构(例如,纳米管或纳米线)在EHD图案化工艺期间变得垂直取向。 利用分段电极和图案化电荷来提供数字图案化控制。