Patents by Inventor HITACHI CHEMICAL CO., LTD.

HITACHI CHEMICAL CO., LTD. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130217229
    Abstract: The invention relates to a polishing liquid for metal film comprising 7.0% by weight or more of an oxidizer for metal, a water-soluble polymer, an oxidized metal dissolving agent, a metal anticorrosive agent and water, provided that the total amount of the polishing liquid for metal film is 100% by weight, wherein the water-soluble polymer has a weight average molecular weight of 150,000 or more and is at least one member selected from among a polycarboxylic acid, a salt of a polycarboxylic acid, and a polycarboxylic acid ester. According to the invention, provided is a polishing liquid for metal film, by which polishing can be performed at a high rate even under a polishing pressure as low as 1 psi or lower, and such that a polished film after polishing is excellent in planarity, furthermore, with which a high polishing rate can be obtained even in an initial stage of polishing, and provided is a polishing method using the polishing liquid.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: HITACHI CHEMICAL CO., LTD.
  • Publication number: 20130125476
    Abstract: The present invention provides a cerium oxide slurry, a cerium oxide polishing slurry, and a method of polishing a substrate by using the same, wherein decrease of scratches and polish at high speed can be realized by reducing the content of coarse grains by improving in the disperse state of cerium oxide particles. The invention relates to a cerium oxide slurry containing cerium oxide particles, dispersant and water, in which the ratio of weight of cerium oxide/weight of dispersant is in a range of 20 to 80 and relates a cerium oxide polishing slurry comprising the cerium oxide slurry and additives such as a water-soluble polymer.
    Type: Application
    Filed: January 15, 2013
    Publication date: May 23, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: Hitachi Chemical Co., Ltd.
  • Publication number: 20130120948
    Abstract: The present invention provides a circuit component that enables satisfactory connection between a substrate and an IC chip and a method of making the same. The circuit component includes an IC chip and a substrate connected to each other using an electrically conductive adhesive containing electrically conductive particles. Bump electrodes and a non-electrode surface are provided on a mounting surface of the IC chip. The non-electrode surface is a portion of the mounting surface other than a portion where the bump electrodes are formed. Electrically conductive particles are placed in a first state between the surfaces of the substrate and the non-electrode surface so as to be in contact with both surfaces. Electrically conductive particles are placed in a second state between the surfaces of both the substrate and the bump electrodes, so as to be more flattened than the first state and dig into the bump electrodes.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 16, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: Hitachi Chemical Co., Ltd.
  • Publication number: 20130089855
    Abstract: Embodiments of the invention relate generally to methods of diagnosing diseases and measuring homeostatic states. In particular, the methods described here are used to characterize RNA from vesicles for expression of disease related markers. Embodiments of the invention also relate generally to the characterization of RNA by using sensitive techniques such as PCR to internally sample organ health using whole blood.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 11, 2013
    Applicants: HITACHI CHEMICAL RESEARCH CENTER, INC., HITACHI CHEMICAL CO., LTD.
    Inventors: HITACHI CHEMICAL CO., LTD., HITACHI CHEMICAL RESEARCH CENTER, INC.
  • Publication number: 20130014446
    Abstract: A cerium salt wherein, when 20 g of the cerium salt is dissolved in a mixed liquid of 12.5 g of 6N nitric acid and 12.5 g of a 30% hydrogen peroxide aqueous solution, a concentration of an insoluble component present in the solution is 5 ppm or less by mass ratio to the cerium salt before dissolution and cerium oxide produced by processing the cerium salt at high temperatures. Scratch on a surface to be polished can be reduced when a cerium based polishing slurry containing the cerium oxide particles is used, since an amount of impurities in cerium oxide particles and cerium salt particles, raw material thereof, is reduced for high purification.
    Type: Application
    Filed: September 24, 2012
    Publication date: January 17, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: HITACHI CHEMICAL CO., LTD.