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    • 9. 发明授权
    • Patterned-print thin-film transistors with top gate geometry
    • 具有顶栅几何形状的图案印刷薄膜晶体管
    • US07344928B2
    • 2008-03-18
    • US11193847
    • 2005-07-28
    • William S. WongRene A. LujanEugene M. Chow
    • William S. WongRene A. LujanEugene M. Chow
    • H01L21/84
    • H01L29/41733H01L27/124H01L27/1285H01L27/1288H01L27/1292H01L29/42384H01L29/4908H01L29/66757
    • A self-aligned, thin-film, top-gate transistor and method of manufacturing same are disclosed. A first print-patterned mask is formed over a metal layer by digital lithography, for example by printing with a phase change material using a droplet ejector. The metal layer is then etched using the first print-patterned mask to form source and drain electrodes. A semiconductive layer and an insulative layer are formed thereover. A layer of photosensitive material is then deposited and exposed through the substrate, with the source and drain electrodes acting as masks for the exposure. Following development of the photosensitive material, a gate metal layer is deposited. A second print-patterned mask is then formed over the device, again by digital lithography. Etching and removal of the photosensitive material leaves the self-aligned top-gate electrode.
    • 公开了一种自对准薄膜顶栅晶体管及其制造方法。 通过数字光刻在金属层上形成第一印刷图案掩模,例如通过使用液滴喷射器用相变材料进行印刷。 然后使用第一印刷图案化掩模蚀刻金属层以形成源极和漏极。 在其上形成半导体层和绝缘层。 然后将一层感光材料沉积并暴露通过基底,源极和漏极用作曝光的掩模。 在感光材料的显影之后,沉积栅极金属层。 然后再次通过数字光刻法在器件上形成第二印刷图案掩模。 蚀刻和去除感光材料离开自对准顶栅电极。
    • 10. 发明授权
    • Patterned structures fabricated by printing mask over lift-off pattern
    • 通过在剥离模式上印刷掩模制造的图案化结构
    • US07459400B2
    • 2008-12-02
    • US11184304
    • 2005-07-18
    • Ana C. AriasRene A. LujanWilliam S. Wong
    • Ana C. AriasRene A. LujanWilliam S. Wong
    • H01L21/311
    • H01L21/027H01L21/0272H01L27/1292H01L29/66765H01L51/0016
    • A patterned integrated circuit structure defining a gap or via is fabricated solely by digital printing and bulk processing. A sacrificial lift-off pattern is printed or otherwise formed over a substrate, and then covered by a blanket layer. A mask is then formed, e.g., by printing a wax pattern that covers a region of the blanket layer corresponding to the desired patterned structure, and overlaps the lift-off pattern. Exposed portions of the blanket layer are then removed, e.g., by wet etching. The printed mask and the lift-off pattern are then removed using a lift-off process that also removes any remaining portions of the blanket layer formed over the lift-off pattern. A thin-film transistor includes patterned source/drain structures that are self-aligned to an underlying gate structure by forming a photoresist lift-off pattern that is exposed and developed by a back-exposure process using the gate structure as a mask.
    • 限定间隙或通孔的图案化集成电路结构仅通过数字印刷和批量处理来制造。 牺牲剥离图案印刷或以其它方式形成在衬底上,然后被覆盖层覆盖。 然后形成掩模,例如通过印刷覆盖对应于所需图案化结构的橡皮布层的区域并与剥离图案重叠的蜡图案。 然后例如通过湿蚀刻除去覆盖层的暴露部分。 然后使用剥离过程去除印刷的掩模和剥离图案,剥离过程也去除在剥离图案上形成的覆盖层的任何剩余部分。 薄膜晶体管包括通过形成通过使用栅极结构作为掩模的背景曝光工艺曝光和显影的光致抗蚀剂剥离图案而与底层栅极结构自对准的图案化源极/漏极结构。