Patents by Inventor Masaharu Kubo
Masaharu Kubo 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).
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Publication number: 20040061147Abstract: An electronic circuit device has a high-density mount board (2), on which are disposed a microcomputer (3) and random access memory (7) which are connected to each other through an exclusive memory bus (12) for high-speed data transfer, a programmable device (8) which is a variable logic circuit represented by FPGA, and an electrically-rewritable nonvolatile memory (16) which can store the operation program of the microcomputer. The high-density mount board has external mounting pins on the bottom surface so that it can be mounted on a mother board in the same manner as a system on-chip multi-chip module. With an intended logic function being set on the programmable device, a hardware-based function to be realized by the electronic circuit device can be simulated. With an operation program being written to the nonvolatile memory, a software-based function to be realized can be simulated.Type: ApplicationFiled: July 15, 2003Publication date: April 1, 2004Inventors: Ryo Fujita, Osamu Kubo, Kouki Noguchi, Masaharu Kubo, Michihiro Mishima, Yasuhiko Takahashi
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Publication number: 20030221718Abstract: The object of this invention is to provide a solar cell apparatus which can prevent occurrences of peeling, warping and cracking of a film due to a temperature change in heating and cooling, etc. in a production process of a large-area solar cell panel and can cause an absence of a development of defects in the production process, a production method of the solar cell apparatus, a metal plate for the solar cell apparatus, and a power generating plant. According to this invention, there is provided a solar cell apparatus containing a metal substrate, two silicon layers, one of the two silicon layers being formed in contact with a part of one surface of the metal substrate, a plurality of electrodes formed in contact with the other of the silicon layers, an external terminal formed on the other surface of the metal substrate, and an external terminal formed in contact with the electrode.Type: ApplicationFiled: September 20, 2002Publication date: December 4, 2003Inventors: Masaharu Kubo, Takashi Naitou, Mutsuhiro Mori, Mutsuko Hatano, Yuichi Sawai
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Publication number: 20030218494Abstract: In a MOS circuit comprising a plurality of MOSFETs constituting a digital circuit, an input signal is supplied to the digital circuit, and a first back bias voltage is supplied to a semiconductor substrate or a semiconductor well region in which the MOSFETs are formed, so that a pn junction between the semiconductor substrate or the semiconductor well region and a source region is brought to a forward voltage. In a non-operating state in which a circuit operation is suspended by the input signal supplied to the digital circuit as a fixed level, a second back bias voltage is applied to the semiconductor substrate or the semiconductor well region so that the pn junction between the semiconductor substrate or the semiconductor well region and the source region is brought to a reverse voltage.Type: ApplicationFiled: March 31, 2003Publication date: November 27, 2003Applicant: Hitachi, Ltd.Inventors: Masaharu Kubo, Mitsuru Hiraki, Hiroyuki Mizuno, Syuji Ikeda
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Publication number: 20030216009Abstract: The present invention provides a semiconductor device and a manufacturing method thereof which can realize fine processing while preventing a warp of a semiconductor wafer. In forming a plurality of semiconductor elements on a semiconductor wafer, grooves for attenuating stress are formed in scribe regions defined between semiconductor element forming regions. Here, the grooves are formed in the scribe regions except for alignment pattern forming regions such that the alignment pattern forming regions remain in the scribe regions. On the alignment pattern forming regions of the scribe regions, an alignment pattern or a TEG pattern which is used in a photolithography step is formed.Type: ApplicationFiled: April 24, 2003Publication date: November 20, 2003Applicant: Hitachi, Ltd.Inventors: Nobuyoshi Matsuura, Yasuhiko Kouno, Hideo Miura, Masaharu Kubo
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Publication number: 20030215985Abstract: Gate oxide films, gate electrodes, base regions and emitter regions, which constitute IGBTs, are formed on a semiconductor wafer. A silicon oxide film is formed on the gate electrodes. Further, an emitter electrode is formed thereabove, and a passivation film is formed over the emitter electrode. Thereafter, an internal area of a back surface of the semiconductor wafer is polished to form a protrusion at its outer peripheral portion. Afterwards, an impurity is injected from the back surface of the semiconductor wafer to form a collector region. After a collector electrode is further formed, the semiconductor wafer is mounted on a stage smaller than the internal area and subjected to dicing along scribe areas. Thus, the strength of the semiconductor wafer is held by the protrusion, and cracking or the like of the semiconductor wafer can be reduced owing to the execution of the dicing in the above-described manner.Type: ApplicationFiled: April 15, 2003Publication date: November 20, 2003Applicant: Hitachi, Ltd.Inventors: Yasuhiko Kouno, Hideo Miura, Nobuyoshi Matsuura, Masaharu Kubo
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Publication number: 20030209740Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: ApplicationFiled: April 25, 2003Publication date: November 13, 2003Applicant: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Patent number: 6630731Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: GrantFiled: January 22, 2002Date of Patent: October 7, 2003Assignee: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Patent number: 6611012Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: GrantFiled: January 22, 2002Date of Patent: August 26, 2003Assignee: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Publication number: 20030148558Abstract: CMOS logic LSI comprises, as a part thereof, n-channel MISFET's (Qn), p-channel MISFET's (Qp) and a first-layer wiring (11) to a third-layer (13) formed on a main surface of a silicon substrate (1), and as another part, a fourth-layer wiring (14) to a seventh-layer wiring (17) formed on a main surface of a glass substrate (30) different from the silicon substrate (1). The main surface of the silicon substrate (1) and the main surface of the glass substrate (30) are arranged in face-to-face relation with each other, and a plurality of microbumps (20A) formed at the uppermost portion of the silicon substrate (1) and a plurality of microbumps (20B) formed at the uppermost portion of the glass substrate (30) are electrically connected, thereby constituting the CMOS logic LSI as a whole.Type: ApplicationFiled: October 3, 2002Publication date: August 7, 2003Inventors: Masaharu Kubo, Ichiro Anjo, Akira Nagai, Osamu Kubo, Hiromi Abe, Hitoshi Akamine
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Publication number: 20030142550Abstract: A semiconductor device including a nonvolatile memory unit and a variable logic unit mounted on a chip is configured to achieve higher speed operation at a lower voltage. The semiconductor device includes a nonvolatile memory unit comprising a plurality of rewritable nonvolatile memory cells and a variable logic unit whose logical functions are determined, according to logic constitution definition data to be loaded into storage cells thereof. A nonvolatile memory cell essentially has a split gate structure composed of a selecting MOS transistor and a memory MOS transistor and constructed such that the dielectric withstand voltage of the gate of the selecting MOS transistor is lower than that of the memory MOS transistor or the gate insulation layer of the selecting MOS transistor is thinner than that of a high-voltage-tolerant MOS transistor. Because the selecting MOS transistor has a high Gm, a sufficiently great current for reading can be obtained.Type: ApplicationFiled: December 4, 2002Publication date: July 31, 2003Applicant: Hitachi, Ltd.Inventors: Takayuki Kawahara, Nozomu Matsuzaki, Terumi Sawase, Masaharu Kubo
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Publication number: 20030003644Abstract: To suppress oxidation of inner walls of element isolation grooves otherwise occurring during thermal oxidation processes. A nitrogen introducing layer less in diffusion coefficient relative to an oxidizing agent is formed at the surface portion of a silicon oxide film as buried within an element isolation groove. This nitrogen introduce layer functions as a barrier layer for precluding the oxidizer (such as oxygen, water or else) in vapor phase from diffusing into the silicon oxide film at thermal processing steps. The nitrogen introduce layer is formed by performing nitrogen ion implantation into an entire surface of a substrate and subsequently applying thermal processing to the substrate to thereby activate the nitrogen doped.Type: ApplicationFiled: June 14, 2002Publication date: January 2, 2003Inventors: Toshiya Uenishi, Satoshi Meguro, Masaharu Kubo, Masataka Kato, Hideo Miura, Norio Suzuki
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Patent number: 6492719Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: GrantFiled: October 26, 2001Date of Patent: December 10, 2002Assignee: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Publication number: 20020117742Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: ApplicationFiled: January 22, 2002Publication date: August 29, 2002Applicant: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Publication number: 20020100164Abstract: A wiring substrate is manufactured in short TAT.Type: ApplicationFiled: January 15, 2002Publication date: August 1, 2002Applicant: Hitachi, Ltd.Inventors: Toshihiko Tanaka, Masaharu Kubo, Takashi Hattori
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Publication number: 20020089051Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: ApplicationFiled: January 22, 2002Publication date: July 11, 2002Applicant: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Publication number: 20020080142Abstract: Herein disclosed is an electronic information distributing terminal equipment (2A) for storing and distributing the electronic information containing a text information and a corresponding motion image information in a memory card (1) equipped with an electrically reloadable nonvolatile semiconductor memory device, which equipment comprises a card stock (225) having a plurality of memory cards stored in advance with the information which has been transmitted through a communication interface (200) for transmitting the electronic information to be distributed, wherein the electronic information is distributed by discharging the memory card even in response to a demand for distributing only the electronic information, and wherein the memory card inserted with the demand is utilized again as a new card stock (225).Type: ApplicationFiled: December 18, 2001Publication date: June 27, 2002Applicant: Hitachi, Ltd.Inventors: Satoshi Takase, Masaharu Kubo, Takeshi Munakata
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Patent number: 6381513Abstract: Herein disclosed is an electronic information distributing terminal equipment for storing and distributing the electronic information containing a text information and a corresponding motion image information in a memory card equipped with an electrically reloadable nonvolatile semiconductor memory device, which equipment comprises a card stock having a plurality of memory cards stored in advance with the information which has been transmitted through a communication interface for transmitting the electronic information to be distributed, wherein the electronic information is distributed by discharging the memory card even in response to a demand for distributing only the electronic information, and wherein the memory card inserted with the demand is utilized again as a new card stock.Type: GrantFiled: July 21, 1997Date of Patent: April 30, 2002Assignee: Hitachi, Ltd.Inventors: Satoshi Takase, Masaharu Kubo, Takeshi Munakata
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Publication number: 20020038907Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: ApplicationFiled: October 26, 2001Publication date: April 4, 2002Applicant: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Patent number: 6335565Abstract: Described herein is a stacked package according to the present invention, wherein a plurality of tape carriers which seal semiconductor chips, are multilayered in upward and downward directions. In the stacked package, one ends of leads formed over the whole surfaces of each tape carrier are electrically connected to their corresponding connecting terminals of the semiconductor chip. Other ends of the leads are electrically connected to their corresponding through holes defined in the tape carrier. Connecting terminals common to the plurality of semiconductor chips are formed at the same places of the plurality of tape carriers and withdrawn to the same external connecting terminals through a plurality of mutually-penetrated through holes.Type: GrantFiled: July 30, 1999Date of Patent: January 1, 2002Assignee: Hitachi, Ltd.Inventors: Toshio Miyamoto, Asao Nishimura, Koki Noguchi, Satoshi Michishita, Masashi Horiguchi, Masaharu Kubo, Kazuyoshi Shiba
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Patent number: 5778237Abstract: A microcomputer has a clock generator capable of changing the frequency of an output clock signal: and a power circuit capable of changing the level of an operating voltage to be outputted. The frequencies of clock signals and the levels of operating voltages to be individually fed to a plurality of circuit modules can be dynamically changed according to the content of a packaged register. If the content of the register instructs the reduction of the clock signal frequency and the operating voltage in its absolute value, the operating voltage is lowered in its absolute value prior to the change in the clock signal frequency. On the contrary, if the instruction is to increase the frequency of the clock signal and the operating voltage in its absolute value, the clock signal having the increased frequency is outputted prior to the increase of the operating voltage in the absolute value.Type: GrantFiled: December 14, 1995Date of Patent: July 7, 1998Assignee: Hitachi, Ltd.Inventors: Mitsuyoshi Yamamoto, Ikuya Kawasaki, Hideo Inayoshi, Susumu Narita, Masaharu Kubo