Patents by Inventor Akira Furuya

Akira Furuya 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).

  • Patent number: 7683269
    Abstract: A terminal electrode body on a substrate is exposed relative to a resin layer, protruding out beyond the side of the resin layer. That is, the terminal electrode body is not covered by the resin layer. The electronic element is covered by an insulating layer and the terminal electrode body and the electronic element are electrically connected. Hence, an electric signal applied to the terminal electrode body can be transmitted to the electronic element. A cover layer covers the terminal electrode body and the boundary between the terminal electrode body and the resin layer.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: March 23, 2010
    Assignee: TDK Corporation
    Inventors: Toshiyuki Yoshizawa, Masaomi Ishikura, Masahiro Miyazaki, Akira Furuya, Nobuyuki Okuzawa
  • Patent number: 7678687
    Abstract: In a method for manufacturing a semiconductor device, insulation resistance of the porous film is stabilized, and leakage current between adjacent interconnects provides an improved reliability in signal propagation therethrough. The method includes: sequentially forming over a semiconductor substrate a porous film and a patterned resist film; forming a concave exposed surface of the substrate; forming a non-porous film covering the interior wall of the concave portion and the porous film; selectively removing the non-porous film from the bottom of the concave portion and the non-porous film by anisotropic etch; forming a barrier metal film covering the porous film and the interior wall; and forming a metallic film on the barrier metal film to fill the concave portion. The anisotropic etch process uses an etching gas with mixing ratio MR, 45?MR?100, where MR=((gaseous “nitrogen” containing compound)+(inert gas))/(gaseous “fluorine” containing compound).
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: March 16, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Akira Furuya
  • Patent number: 7675136
    Abstract: A thin-film device incorporates a device main body and four terminal electrodes. The device main body has four side surfaces. The terminal electrodes are disposed to touch respective portions of the side surfaces. The device main body includes a lower conductor layer used to form a first passive element and an upper conductor layer used to form a second passive element. At each side surface of the device main body, an end face of the lower conductor layer and an end face of the upper conductor layer are electrically and physically connected to each other. The terminal electrodes touch the end faces of the lower and upper conductor layers, and are thereby connected to the lower and upper conductor layers.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: March 9, 2010
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Masahiro Miyazaki, Akira Furuya
  • Patent number: 7667951
    Abstract: The invention relates to an electronic component including a capacitor and provides an electronic component in which electromigration can be prevented and whose capacitor element has an accurate capacity value. The electronic component includes a bottom conductor formed on a substrate, a dielectric film formed to cover the bottom conductor, an organic insulation film formed on the dielectric film, and a top conductor formed in an opening provided in the organic insulation film over the bottom conductor, the top conductor forming a capacitor element in combination with the bottom conductor and the dielectric film.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 23, 2010
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Akira Furuya, Masahiro Miyazaki, Makoto Shibata
  • Patent number: 7652349
    Abstract: A thin-film device comprises a substrate and a capacitor provided on the substrate. The capacitor incorporates: a lower conductor layer; a dielectric film a portion of which is disposed on the lower conductor layer; and an upper conductor layer disposed on the dielectric film. The lower conductor layer has a top surface, a side surface, and a corner portion formed by the top and side surfaces. The upper conductor layer incorporates an upper electrode portion having a bottom surface opposed to the top surface of the lower conductor layer with the dielectric film disposed in between. When seen from above the upper conductor layer, the periphery of the bottom surface of the upper electrode portion is located inside the periphery of the top surface of the lower conductor layer without touching the periphery of the top surface of the lower conductor layer.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: January 26, 2010
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Masahiro Miyazaki, Akira Furuya
  • Patent number: 7649251
    Abstract: A thin-film device incorporates: a substrate; an insulating layer, a plurality of lower conductor layers, a dielectric film, an insulating layer, a plurality of upper conductor layers and a protection film that are stacked in this order on the substrate; and a plurality of terminal electrodes. One of the terminal electrodes is connected to one of the lower conductor layers. The one of the lower conductor layers has a protruding portion that protrudes to extend more outward in a lateral direction than a side surface of the insulating layer. The one of the terminal electrodes has a concave portion that accommodates and touches at least part of the protruding portion, and touches the side surface of the insulating layer.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: January 19, 2010
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Masahiro Itoh, Masahiro Miyazaki, Akira Furuya
  • Patent number: 7608881
    Abstract: A thin-film device comprises: a substrate; a flattening film made of an insulating material and disposed on the substrate; and a capacitor provided on the flattening film. The capacitor incorporates: a lower conductor layer disposed on the flattening film; a dielectric film disposed on the lower conductor layer; and an upper conductor layer disposed on the dielectric film. The thickness of the dielectric film falls within a range of 0.02 to 1 ?m inclusive and is smaller than the thickness of the lower conductor layer. The surface roughness in maximum height of the top surface of the flattening film is smaller than that of the top surface of the substrate and equal to or smaller than the thickness of the dielectric film. The surface roughness in maximum height of the top surface of the lower conductor layer is equal to or smaller than the thickness of the dielectric film.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 27, 2009
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Masahiro Miyazaki, Akira Furuya
  • Publication number: 20090242409
    Abstract: A plating film is formed by the steps of applying a direct current between a cathode and an anode (S10); superimposing an alternating current component on the direct current between the cathode and the anode and detecting a displacement current flowing between the cathode and the anode (S12 to S16); calculating a variation of a surface area of the plating film based on the displacement current (S18 and S20); and controlling the value of the direct current based on the variation of the surface area of the plating film so that the local area current density for the surface area does not change (S22 and S24). Consequently favorable film properties are provided to the plating film.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Akira Furuya
  • Publication number: 20090244809
    Abstract: A thin-film device includes a substrate, and a capacitor provided on the substrate. The capacitor incorporates a lower conductor layer having a top surface and a side surface; a flattening film disposed to cover the top and side surfaces of the lower conductor layer; a dielectric film disposed on the flattening film; and an upper conductor layer disposed on the dielectric film. The lower conductor layer is composed of an electrode film and a plating film disposed on the electrode film. The dielectric film has a thickness that falls within a range of 0.02 to 1 ?m inclusive and that is smaller than a thickness of the lower conductor layer. A surface roughness in maximum height of a top surface of the flattening film is smaller than that of the top surface of the lower conductor layer and equal to or smaller than the thickness of the dielectric film.
    Type: Application
    Filed: June 5, 2009
    Publication date: October 1, 2009
    Applicant: TDK CORPORATION
    Inventors: Hajime Kuwajima, Masahiro Miyazaki, Akira Furuya
  • Patent number: 7586048
    Abstract: The invention relates to a surface mount type electronic component to be mounted on a printed circuit board or a hybrid IC (HIC) and provides a low-cost electronic component which is reliable in terms of heat resistance and pressure resistance. An inductor as the electronic component has a general outline in the form of a rectangular parallelepiped, provided by forming a lead-out electrode having a multi-layer structure on a substrate and forming a protective layer for protecting the lead-out electrode using thin film forming techniques. The lead-out electrode includes a first electrode which is electrically connected to a coil conductor and which has an exposed part exposed on an outer surface and a second electrode which has an exposed part exposed on the outer surface to extend an electrode width different from an electrode width of the first electrode and which is formed directly above the first electrode and electrically connected to the first electrode.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: September 8, 2009
    Assignee: TDK Corporation
    Inventors: Akira Furuya, Masahiro Miyazaki, Hajime Kuwajima, Makoto Shibata
  • Patent number: 7560372
    Abstract: An oxide film formed on the surface of copper film of an electrode pad is cleaned by oxalic acid after unevenness is formed on the surface of copper film by treating the surface with organic acid. Thereby, stable resistance is obtained when carrying out a characteristic inspection by bringing a probe into contact with the electrode pad, and it is easily recognized by observation through a microscope that the probe is brought into contact with the electrode pad. In addition, wettability with respect to solder is satisfactory, and it is possible to favorably form a solder bump on the electrode pad.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 14, 2009
    Assignee: NEC Electronics Corporation
    Inventors: Hiroaki Tomimori, Hidemitsu Aoki, Kaoru Mikagi, Akira Furuya, Tetsuya Tao
  • Publication number: 20090166074
    Abstract: The present invention provides an electronic component which is capable of effectively suppressing the characteristic deterioration of the passive element portion. An electronic component comprises a ceramic substrate, a passive element portion on the substrate, an insulator layer which is provided over the passive element portion and comprises a through-hole, a lead terminal which is fitted in the through-hole of the insulator layer and electrically connected to the passive element portion, and an external connection terminal which is electrically connected to the lead terminal. The insulator layer comprises a first face on the side of the passive element portion, a second face on the side opposite the passive element portion, and a third face which connects the first face and the second face and constitutes the peripheral face of the insulator layer, the external connection terminal is in contact with the lead terminal and the second face and the third face of the insulator layer.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 2, 2009
    Applicant: TDK CORPORATION
    Inventors: Akira FURUYA, Masahiro MIYAZAKI, Hiroshi TAKE, Keisuke TAKASUGI
  • Publication number: 20090159039
    Abstract: A tubular channel is disposed in a path of air that flows from an inlet to a dirty side. The cross sectional area of the tubular channel is smaller than the cross-sectional area of the inlet. A dust outlet is disposed in a wall in a path of the air that flows out of the exit of the tubular channels to the dirty side. The dust outlet extends through the wall of the air cleaner from the inside to the outside. As the air blasts out of the dust outlet, dust in the air cleaner is discharged to the outside.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Inventor: Akira Furuya
  • Patent number: 7489036
    Abstract: A thin-film device incorporates: a substrate; an insulating layer, a lower conductor layer, a dielectric film, an insulating layer, an upper conductor layer and a protection film that are stacked in this order on the substrate; and four terminal electrodes. The four terminal electrodes touch part of end faces of the upper conductor layer, and part of the top surface of the upper conductor layer contiguous to the end faces. The protection film has four concave portions, each of which has a shape that is recessed inward from the edge of the protection film except portions thereof corresponding to these concave portions. The four concave portions expose respective portions of the top surface of the upper conductor layer that touch the four terminal electrodes. The four concave portions accommodate respective portions of the four terminal electrodes.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: February 10, 2009
    Assignee: TDK Corporation
    Inventors: Hajime Kuwajima, Masahiro Miyazaki, Akira Furuya, Masahiro Itoh
  • Publication number: 20080293247
    Abstract: An object of the invention is to provide a semiconductor device which includes a barrier metal having high adhesiveness and diffusion barrier properties and a method of manufacturing the semiconductor device. The invention provides a semiconductor device manufacturing method including forming a first layer made of a material containing silicon on a base substance; forming a second layer containing metal and nitrogen on the first layer; and exposing the second layer to active species obtained from plasma in an atmosphere including reducing gas.
    Type: Application
    Filed: July 23, 2008
    Publication date: November 27, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Akira Furuya, Nobuyuki Otsuka, Hiroshi Okamura, Shinichi Ogawa
  • Publication number: 20080283404
    Abstract: A method for manufacturing a semiconductor device is provided which includes performing an electroplating step to fill concavities formed on a substrate. The electroplating step further includes: performing a first electroplating step; performing a first reverse bias step; performing a second electroplating step; performing a second reverse bias step; and a third electroplating step. The polarity of the first and the second reverse bias steps is different from that of the first electroplating step. A difference between the third current density and the fourth current density is larger than a difference between the first current density and the second current density.
    Type: Application
    Filed: May 12, 2008
    Publication date: November 20, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Akira FURUYA, Shinsuke Kozumi, Koji Arita
  • Publication number: 20080236885
    Abstract: A terminal electrode body on a substrate is exposed relative to a resin layer, protruding out beyond the side of the resin layer. That is, the terminal electrode body is not covered by the resin layer. The electronic element is covered by an insulating layer and the terminal electrode body and the electronic element are electrically connected. Hence, an electric signal applied to the terminal electrode body can be transmitted to the electronic element. A cover layer covers the terminal electrode body and the boundary between the terminal electrode body and the resin layer.
    Type: Application
    Filed: March 21, 2008
    Publication date: October 2, 2008
    Applicant: TDK CORPORATION
    Inventors: Toshiyuki YOSHIZAWA, Masaomi ISHIKURA, Masahiro MIYAZAKI, Akira FURUYA, Nobuyuki OKUZAWA
  • Patent number: 7426914
    Abstract: A crankcase of an engine having a crankshaft therein comprises a skirt part formed in the circumferential direction of the crankshaft and a stiffening rib provided on a wall surface of the skirt part as inclined at a predetermined degree angle to the axis of the crankshaft.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: September 23, 2008
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akira Furuya
  • Publication number: 20080206899
    Abstract: A method of manufacturing a semiconductor device includes measuring the reflectance at the surface of a semiconductor substrate provided with concave portions and deciding a deposition parameter that represents a deposition condition corresponding to the measured reflectance. Then, a metal film is formed on the semiconductor substrate under a condition corresponding to the deposition parameter.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 28, 2008
    Applicant: NEC Electronics Corporation
    Inventor: Akira Furuya
  • Publication number: 20080150140
    Abstract: Aimed at improving adhesiveness between upper and lower interconnects in semiconductor devices, a semiconductor device of the present invention includes a second dielectric multi-layered film formed on a substrate, and containing a lower interconnect; a first dielectric multi-layered film formed on the second dielectric multi-layered film, and having a recess; an MOx film formed on the inner wall of the recess, and containing a metal M and oxygen as major components; an M film formed on the MOx film, and containing the M as a major component; and an electric conductor formed on the M film so as to fill the recess, and containing Cu as a major component, wherein the surficial portion of the interconnect fallen straight under the bottom of the recess has an oxygen concentration of 1% or smaller.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Akira FURUYA