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    • 61. 发明公开
    • Method of manufacturing a semiconductor device involving a step of patterning an insulating layer
    • 制造使用Isolierschichtätzen的步骤的半导体器件的方法。
    • EP0425957A2
    • 1991-05-08
    • EP90120205.1
    • 1990-10-22
    • KABUSHIKI KAISHA TOSHIBA
    • Tsuji, Hitoshi, c/o Intellectual Property Division
    • H01L21/027H01L21/28H01L21/311
    • H01L29/66863H01L21/0272H01L21/28581H01L21/28587H01L21/31144H01L29/66462
    • A method of manufacturing a semiconductor device comprising the steps of forming a first insulating layer (2) on a semiconductor substrate (1), forming a resist film (3) sensitive to electron beams on the first insu­lating layer (2), applying electron beams onto a prede­termined region of the resist film (3), removing unnecessary portions of the resist film (3) by using a developer, thereby forming a remaining pattern resist film (3), forming a second insulat-ing layer (4) on the entire region of the first insulating layer (2) and the remaining pattern resist film (3), simultane-ously removing the remaining pattern resist film (3) and the second insulating layer (4) which is formed thereon, thereby forming an opening of a predetermined pattern on the second insulating layer (4), and etching the first insulat-ing layer (2) through the opening, using the second insulation layer (4) as a mask, thereby causing a predetermined region of the semiconductor substrate (1) to be exposed.
    • 一种制造半导体器件,包括:形成第一绝缘层(2)上的半导体衬底(1),形成抗蚀剂成膜步骤的方法(3),以在第一绝缘层(2)上的电子束,照射电子束敏感 到的预定区域的抗蚀剂薄膜 - (3)中除去的(3)通过使用显影剂,由此形成一个保留图案的抗蚀剂电影(3),形成了第二insulat-ING层抗蚀剂薄膜 - 不需要的部分(4)上的 在第一绝缘层(2)的整个区域,剩余的抗蚀剂图案的电影(3),同时-ously去除剩余的抗蚀剂图案的电影(3)和所述第二绝缘层(4),所有这些在其上形成,从而在开口中形成 第二绝缘层(4),以及蚀刻所述第一绝缘层上的预定图案(2)通过所述开口,使用第二绝缘层(4)作为掩模,从而使半导体衬底的预定区域(1 )露出。
    • 66. 发明公开
    • Lift-off process
    • 提升过程
    • EP0164675A3
    • 1987-06-16
    • EP85106842
    • 1985-06-03
    • International Business Machines Corporation
    • Anderson, Herbert Rudolph, Jr.Sachdev, Harbans SinghSachdev, Krishna Gandhi
    • G03F07/10
    • H01L21/7688G03F7/039H01L21/0272H05K3/048Y10S438/951
    • An improved lift-off process for multilevel metal structure in the fabrication of integrated circuits by employing lift-off layer formed from polymers which undergo clean depolymerization under the influence of heat or radiation and allow rapid and residue-free release of an "expendable mask". An embedded interconnection metallurgy system is formed by application of the lift-off layer of this invention over a cured polymer film or on an oxygen RIE barrier layer previously deposited on organic or inorganic substrate, followed by another barrier over which is then coated a radiation sensitive resist layer. After definition of the desired resist pattern by imagewise exposure and development, the image is replicated into the barrier by sputter etching in a fluorine containing ambient and subsequently into the base layer down to the substrate by oxygen reactive ion etching which is followed by blanket metal evaporation and finally the lift-off by brief heat treatment at the depolymerization temperature of the lift-off layer, and brief solvent soak.
    • 通过使用由在热或辐射的影响下经历清洁解聚的聚合物形成的剥离层,并且允许快速和无残留地释放“消耗性掩模”,在多层金属结构制造集成电路中改进了多层金属结构的剥离工艺, 。 通过将本发明的剥离层施加在固化的聚合物膜上或预先沉积在有机或无机基底上的氧RIE阻挡层上,随后再涂覆有辐射敏感的另一个屏障,形成嵌入式互连冶金系统 抗蚀剂层。 在通过图像曝光和显影定义所需的抗蚀剂图案之后,通过在含氟环境中的溅射蚀刻将图像复制到势垒中,随后通过氧反应离子蚀刻进入基底层,然后通过橡皮布金属蒸发 最后通过在剥离层的解聚温度下进行短暂热处理,并进行短暂的溶剂浸泡。
    • 68. 发明公开
    • Method for making contacts to integrated circuits
    • Verfahren zum Herstellen von Kontaktenfürintegrierte Schaltungen。
    • EP0181457A2
    • 1986-05-21
    • EP85111314.2
    • 1985-09-06
    • International Business Machines Corporation
    • Brown, Karen HillMoore, David Frankvan der Hoeven, Bernard Jacob Cornelis, Jr.
    • H01L39/24
    • H01L39/2493H01L21/0272Y10S438/951Y10S505/82
    • @ A composite self-alignment back-etch/lift-off technique is used to obtain masks for patterning integrated circuit device contacts. Proximity effects adverse to the device characteristics are minimized.
      On the intermediate circuit structure (1, 2, 3) a lift-off resist stencil (5) is patterned with windows exposing areas that are critical with respect to proximity effects. After deposition of a contact metal layer (6) in the exposed areas a back-etch resist stencil (7) is patterned over selected positions of the contact metal to protect the underlying contact regions of the integrated circuit structure. The contact metal not covered by the back-etch stencil is then etched, leaving the desired contact configuration. Finally, the lift-off stencil (5) and the back-etch stencil (7) are removed.
    • 使用复合自对准背蚀刻/剥离技术来获得用于图案化集成电路器件触点的掩模。 对装置特性的不良影响最小化。 在中间电路结构(1,2,3)上,剥离抗蚀剂模版(5)被图案化,窗口暴露对于邻近效应至关重要的区域。 在暴露区域中沉积接触金属层(6)之后,将反蚀刻抗蚀剂模板(7)图案化在接触金属的选定位置上,以保护集成电路结构的下面的接触区域。 然后蚀刻不被背蚀刻模板覆盖的接触金属,留下所需的接触构型。 最后,去除剥离模板(5)和背蚀刻模版(7)。