Synthetic Resin Is Electrically Conductive Patents (Class 205/925)
  • Patent number: 7608538
    Abstract: The present invention is related to a method for forming vertical conductive structures by electroplating. Specifically, a template structure is first formed, which includes a substrate, a discrete metal contact pad located on the substrate surface, an inter-level dielectric (ILD) layer over both the discrete metal contact pad and the substrate, and a metal via structure extending through the ILD layer onto the discrete metal contact pad. Next, a vertical via is formed in the template structure, which extends through the ILD layer onto the discrete metal contact pad. A vertical conductive structure is then formed in the vertical via by electroplating, which is conducted by applying an electroplating current to the discrete metal contact pad through the metal via structure. Preferably, the template structure comprises multiple discrete metal contact pads, multiple metal via structures, and multiple vertical vias for formation of multiple vertical conductive structures.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 27, 2009
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Qiang Huang, John P. Hummel, Lubomyr T. Romankiw, Mary B. Rothwell
  • Patent number: 6510059
    Abstract: In mounting an electronic component using a conductive resin, a conductive resin containing a specific diluent component is used as the conductive resin, or a specific diluent component is applied to the conductive resin before being cured. This allows connection in a portion where an electrode (5) of an electronic component (4) and an electrode (2) of a circuit substrate (1) are opposed to each other to be provided via a resin (3a) containing a conductive filler as a main component, and allows connection at a lower surface of the electronic component (4) and connection in vicinities of the electrode (5) to be provided via a resin (3b, 3c) containing a binder resin as a main component that has oozed out of the conductive resin. The resin (3b, 3c) containing the binder resin as the main component increases junction strength.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: January 21, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsutomu Mitani, Yukihiro Ishimaru, Takashi Kitae, Hiroaki Takezawa
  • Patent number: 5597471
    Abstract: A process for metallizing non-conductive surfaces, by treating the non-conductive surface with a solution containing at least one suspended or solute oxidation agent, contacting the treated non-conductive surface with an acidic solution containing at least one water soluble polymer selected from the group consisting of homopolymers and copolymers, and at least one aromatic compound which chemically polymerizes the water-soluble polymer and the aromatic compound to form a conductive polymer, and electroplating the conductive polymer. Each water-soluble polymer contains uncharged structural elements or is cationic polyelectrolyte. Additionally, each water soluble polymer is capable of protonizing/deprotonizing reactions, formation of hydrogen bridge compounds and van der Waals interactions.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: January 28, 1997
    Assignee: Atotech Deutschland GmbH
    Inventors: Andrea Ragge, Heinrich Meyer, Gonzalo Urrutia Desmaison