Patents by Inventor Takahiko Takahashi

Takahiko Takahashi 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: 11973198
    Abstract: A semiconductor device capable of detecting a micro-short circuit of a secondary battery is provided. The semiconductor device includes a first source follower, a second source follower, a transistor, a capacitor, and a comparator. A negative electrode potential and a positive electrode potential of the secondary battery are supplied to the semiconductor device, a first potential is input to the first source follower, and a second potential is input to the second source follower. A signal for controlling the conduction state of the transistor is input to a gate of the transistor, and an output potential of the first source follower related to the potential between the positive electrode and the negative electrode of the secondary battery is sampled.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 30, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takanori Matsuzaki, Kei Takahashi, Takahiko Ishizu, Yuki Okamoto, Minato Ito
  • Publication number: 20240084793
    Abstract: A pump system contains a pair of pumps each of which contains a vibration actuator vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator. The pump system has a vibration suppression mode in which the pair of the pumps are driven so that vibration of the vibration actuators of the pair of pumps is cancelled each other and a vibration generation mode in which the pair of the pumps are driven so that the vibration of the vibration actuators of the pair of pumps is superimposed with each other.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Yuta YOSHII, Chikara SEKIGUCHI, Shigenori INAMOTO, Yuki TAKAHASHI, Daisuke KODAMA, Kenta UEDA, Takahiko IRIE, Daisuke KURITA
  • Patent number: 6753253
    Abstract: Herein disclosed are a variety of techniques relating to the wiring and logic corrections on a chip by making use of the focused ion beam (which is shortly referred to as “FIB”) or the laser selection metal CVD. The time periods for the wiring corrections and for debugging and developing an electronic system are shortened by making use of the processing characteristics of the FIB. Illustratively, a hole is bored in an insulating film above a portion of a wiring which is to be connected to another wiring by means of a focused ion beam. The inside of the hole and a predetermined region on the insulating film are irradiated with either a laser beam or an ion beam in a metal compound gas to deposit metal in the hole and on said region and a connecting wiring is formed by means of optically pumped CVD.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: June 22, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Takahiko Takahashi, Fumikazu Itoh, Akira Shimase, Mikio Hongo, Satoshi Haraichi, Hiroshi Yamaguchi
  • Patent number: 5824598
    Abstract: An IC wiring connecting method for interconnecting conductive lines of the same wiring plane of an IC chip for correcting the wiring, for interconnecting conductive lines of different wiring lanes of a multilayer IC chip at the same position, or for connecting a conductive line of a lower wiring plane of a multilayer IC chip to a conductive line formed at a separate position on the same multilayer IC chip. The insulating film or films covering conductive lines to be interconnected are processed by an energy beam such as a concentrated ion beam to form holes so as to expose the respective parts of the conductive lines where the conductive lines are to be interconnected, then a metal is deposited over the surfaces of the holes and an area interconnecting the holes by irradiating the surfaces of the holes and the area by an energy beam or a concentrated ion beam in an atmosphere of a gaseous organic metal compound to form a conductive metal film electrically interconnecting the conductive lines.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: October 20, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yamaguchi, Mikio Hongo, Tateoki Miyauchi, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi, Keiya Saito
  • Patent number: 5683547
    Abstract: A processing method and apparatus using a focused energy beam for conducting local energy beam processing in a focused energy beam irradiating area by irradiating a sample with a focused energy beam such as an ion beam or an electron beam in an etching gas atmosphere. As the etching gas, a mixed gas different in composition from any conventional one is employed and the gas is uniformly supplied to an etching area and at least one of the components of such a mixed gas is a spontaneous reactive gas for use in etching the sample spontaneously and isotropically. With this arrangement, it is possible to subject to local etching a material for which the local etching has been impossible to provide since a single etching gas causes a reaction too fierce or causes almost nearly no reaction.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: November 4, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Junzou Azuma, Fumikazu Itoh, Satoshi Haraichi, Akira Shimase, Junichi Mori, Takahiko Takahashi, Emiko Uda
  • Patent number: 5497034
    Abstract: An IC wiring connecting method for interconnecting conductive lines of the same wiring plane of an IC chip for correcting the wiring, for interconnecting conductive lines of different wiring lanes of a multilayer IC chip at the same position, or for connecting a conductive line of a lower wiring plane of a multilayer IC chip to a conductive line formed at a separate position on the same multilayer IC chip. The insulating film or films covering conductive lines to be interconnected are processed by an energy beam such as a concentrated ion beam to form holes so as to expose the respective parts of the conductive lines where the conductive lines are to be interconnected, then a metal is deposited over the surfaces of the holes and an area interconnecting the holes by irradiating the surfaces of the holes and the area by an energy beam or a concentrated ion beam in an atmosphere of a gaseous organic metal compound to form a conductive metal film electrically interconnecting the conductive lines.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: March 5, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yamaguchi, Mikio Hongo, Tateoki Miyauchi, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi, Keiya Saito
  • Patent number: 5472507
    Abstract: An IC wiring connecting method for interconnecting conductive lines of the same wiring plane of an IC chip for correcting the wiring, for interconnecting conductive lines of different wiring lanes of a multilayer IC chip at the same position, or for connecting a conductive line of a lower wiring plane of a multilayer IC chip to a conductive line formed at a separate position on the same multilayer IC chip. The insulating film or films covering conductive lines to be interconnected are processed by an energy beam such as a concentrated ion beam to form holes so as to expose the respective parts of the conductive lines where the conductive lines are to be interconnected, then a metal is deposited over the surfaces of the holes and an area interconnecting the holes by irradiating the surfaces of the holes and the area by an energy beam or a concentrated ion beam in an atmosphere of a gaseous organic metal compound to form a conductive metal film electrically interconnecting the conductive lines.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: December 5, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yamaguchi, Mikio Hongo, Tateoki Miyauchi, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi, Keiya Saito
  • Patent number: 5182231
    Abstract: The wiring of a semiconductor device having a multilayer interconnection on a semiconductor substrate is modified. A plurality of fine holes are formed on an insulation film by the radiation of a converged energy beam to expose selected ones of the internal lines of the underlying wiring. A thin buffer film of Cr, Ti, TiN, or W is formed along a path where an additional connection line is to be deposited. The path extends along an upper surface of the insulating film at least in and between the said fine holes. The additional connection line is deposited on the buffer film by energy beam CVD, using Mo, W, or Al, to interconnect the exposed internal lines. The additional connection line is annealed by radiating an energy beam thereon to reduce its resistance. A further insulating film is deposited covering the additional connection line by energy beam CVD.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: January 26, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Hongo, Katsuro Mizukoshi, Shyuzo Sano, Takashi Kamimura, Takahiko Takahashi
  • Patent number: 5086015
    Abstract: A method of etching a semiconductor device having multi-layered wiring by an ion beam is disclosed which method comprises the steps of: extracting a high-intensity ion beam from a high-density ion source; focusing the extracted ion beam; causing the focused ion beam to perform a scanning operation by a voltage applied to a deflection electrode; forming a first hole in the semiconductor device by the focused ion beam to a depth capable of reaching an insulating film formed between upper and lower wiring conductors so that the first hole has a curved bottom corresponding to the undulation of the upper wiring conductor, and the upper wiring conductor is absent at the bottom of the first hole; and scanning a portion of the bottom of the first hole with the focused ion beam to form a second hole in the insulating film to a depth capable of reaching the lower wiring conductor, thereby preventing the shorting between the upper and lower wiring conductors.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: February 4, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Fumikazu Itoh, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi, Mikio Hongo
  • Patent number: 5055696
    Abstract: In locally reactive etching by irradiating to a multilayered workpiece reactive beam generated by extracting the reactant gas ionized or by irradiating such focussing beam as ion beam, electron beam or laser beam to the multilayered workpiece in an atmosphere of reactant gas; each layer of a multilayered device comprising a plurality of layers formed on a substrate can be accurately and quickly eteched by detecting the change of the material of the layer currently being etched and after detecting the change of material, switching reactant gas to be ionized or atmospheric reactant gas to one complying with the material of the layer currently being etched. This multilayered device micro etching method can be readily put into practice by a multilayered device micro etching system further comprising means for detecting the change of the material of layer to be etched and means for switching and supplying a plurality of reactant gases, in a micro etching appratus for performing locally rective etching.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: October 8, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Haraichi, Fumikazu Itoh, Akira Shimase, Takahiko Takahashi
  • Patent number: 5043297
    Abstract: A wiring method for on-chip modification of an LSI is provided to cut a portion of a wire inside of the LSI with an ion beam and connect the wire with a laser induced CVD process so that the logic is changed when developing the LSI. The method comprises the steps of cutting or connecting an LSI wire even if another wire is located above or adjacent to the LSI wire and repairing an excessively cut or connected portion. The method thus makes it possible to widen the range of a possible cutting or connection spot, thereby making any kind of repairs possible, some of which would have never been repaired by the conventional method.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: August 27, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masato Hamamoto, Takahiko Takahashi
  • Patent number: 5026664
    Abstract: A semiconductor IC device having a substrate, a patterned conductor layer for interconnection of regions in the substrate and a passivation layer covering the device is provided with an additional conduction path of a pattern and/or part of the patterned conductor layer is removed for disconnection for the purpose of evaluation of the characteristics of the device. The additional conduction path is formed by forming a hole in the passivation layer to expose a part of the conductor layer, directing, in an atmosphere containing a metal compound gas, an ion beam onto the hole and onto a predetermined portion of the passivation layer on which the additional conduction path of a pattern is to be formed to thereby form a patterned film of the metal decomposed from the metal compound gas and forming an additional conductor on the patterned film.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: June 25, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Hongo, Katsuro Mizukoshi, Shuzo Sano, Takashi Kamimura, Fumikazu Itoh, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi
  • Patent number: 4900695
    Abstract: The present invention relates to a semiconductor integrated circuit device and a process for producing the same. A hole is bored in an insulating film above a portion of a wiring which is to be connected to another wiring by means of a focused ion beam. The inside of the hole and a predetermined region on the insulating film are irradiated with either a laser beam or an ion beam in a metal compound gas to deposit metal in the hole and on said region and a connecting wiring is formed by means of optically pumped CVD. To electrically connect upper- and lower-level wirings in a multilayer wiring structure by a connecting wiring, the connecting wiring is electrically isolated from an intermediate-level wiring through which it extends. The above-described arrangement enables provision of a hole with a focused ion beam and formation of a metal wiring on a selective region by means, for example, optically pumped CVD.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: February 13, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Takahiko Takahashi, Funikazu Itoh, Akira Shimase, HIroshi Yamaguchi, Mikio Hongo, Satoshi Haraichi
  • Patent number: 4868068
    Abstract: A IC wiring connecting method for interconnecting conductive lines of the same wiring plane of an IC chip for correcting the wiring, for interconnecting conductive lines of different wiring lanes of a multilayer IC chip at the same position, or for connecting a conductive line of a lower wiring plane of a multilayer IC chip to a conductive line formed at a separate position on the same multilayer IC chip. The insulating film or films covering conductive lines to be interconnected are processed by an energy beam such as a concentrated ion beam to form holes so as to expose the respective parts of the conductive lines where the conductive lines are to be interconnected, then a metal is deposited over the surfaces of the holes and an area interconnecting the holes by irradiating the surfaces of the holes and the area by an energy beam or a concentrated ion beam in an atmosphere of a gaseous organic metal compound to form a conductive metal film electrically interconnecting the conductive lines.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: September 19, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yamaguchi, Mikio Hongo, Tateoki Miyauchi, Akira Shimase, Satoshi Haraichi, Takahiko Takahashi, Keiya Saito
  • Patent number: 4469535
    Abstract: A method of fabricating semiconductor integrated circuit devices having a semiconductor region in a position separated by a predetermined distance from a dielectric isolating region provided on the surface of a semiconductor wafer, comprising the steps of forming a first mask to define the dielectric isolating region and semiconductor region, forming a second mask over the first mask so as to cover the region which is to become the semiconductor region, and removing the second mask after the dielectric isolating region has been formed by the first and second masks, to form the semiconductor region. The method thus permits the semiconductor region to be self-aligned with the dielectric isolating region.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: September 4, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Shigeo Kuroda, Takahiko Takahashi, Akio Anzai