Patents by Inventor Yukinobu Adachi

Yukinobu Adachi 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: 8281739
    Abstract: The present invention generally comprises an RF shutter assembly for use in a plasma processing apparatus. The RF shutter assembly may reduce the amount of plasma creep below the substrate and shadow frame during processing, thereby reducing the amount of deposition that occurs on undesired surfaces. By reducing the amount of deposition on undesired surfaces, particle flaking and thus, substrate contamination may be reduced.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: October 9, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Robin L. Tiner, Gaku Furuta, Yukinobu Adachi
  • Publication number: 20080286463
    Abstract: The present invention generally comprises an RF shutter assembly for use in a plasma processing apparatus. The RF shutter assembly may reduce the amount of plasma creep below the substrate and shadow frame during processing, thereby reducing the amount of deposition that occurs on undesired surfaces. By reducing the amount of deposition on undesired surfaces, particle flaking and thus, substrate contamination may be reduced.
    Type: Application
    Filed: February 29, 2008
    Publication date: November 20, 2008
    Inventors: ROBIN L. TINER, Gaku Furuta, Yukinobu Adachi
  • Patent number: 6088819
    Abstract: In a DRAM, a boosted voltage Vpp is applied to a selected word line WL1 in a normal mode. In a test mode, a power supply voltage Vcc at a level lower than Vpp level is applied onto selected word line WL1. High data written into memory cell in the test mode of the DRAM is at the level lower than that of the high data written into memory cell in the normal mode. Therefore, a time before an H.fwdarw.L error occurs can be reduced, and a test time can be reduced.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: July 11, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukinobu Adachi, Hiromi Okimoto, Masanori Hayashikoshi
  • Patent number: 5631867
    Abstract: An external power source voltage Vcc rises until it exceeds the threshold voltage Vth of an NMOS transistor diode-connected between the external power source (voltage Vcc) and an internal boosted power source (voltage Vpp), whereupon the NMOS transistor is turned on, supplying the internal boosted power source with a voltage (Vcc-Vth) until the power source voltage Vcc reaches its final value. And when the internal reset signal ZPOR expires, the internal boosted power source generating circuit is started to operate so that the internal boost source voltage Vpp is boosted to an intended level Vpp. As a result, when the power is turned on, early stabilization of the boosted power source voltage is realized in a semiconductor storage device.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: May 20, 1997
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Hiroshi Akamatsu, Yukinobu Adachi, Susumu Tanida, Tooru Ichimura
  • Patent number: 5416366
    Abstract: Fluctuation of the minimum voltage value allowing determination of the "H" level of an input signal and of maximum voltage value allowing determination of the "L" level of the input signal dependent on the supply voltage is suppressed, in order to enlarge operation margin. A semiconductor integrated circuit device includes a P channel transistor and an N channel transistor constituting a CMOS inverter, an N channel transistor connected in parallel to N channel transistor, and a plurality of N channel transistors for applying a voltage provided by lowering the supply voltage to the gate electrode of N channel transistor, in which a plurality of N channel transistor are connected in series.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: May 16, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yukinobu Adachi
  • Patent number: 5400290
    Abstract: In response to an external control signal, a first timing detecting circuit and a high voltage detecting circuit detect setting of a signature mode and provide a signature mode signal to a second timing detecting circuit. The second timing detecting circuit outputs an output buffer activating signal to the output buffer in response to the external control signal. In response to the output buffer activating signal, the output buffer detects an internal supply voltage and provides the same to an external pin.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: March 21, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsuhiro Suma, Masaki Tsukude, Yukinobu Adachi
  • Patent number: 5287320
    Abstract: An improved DRAM includes a main circuit and an output driver circuit, respectively, energized by externally applied two power supply voltages. The DRAM includes a timing coinciding circuit for making the supply-timing of the two power supply voltages to the circuits coincided to each other. When power supply voltage only is applied, output driver circuit has a tendency to consume an excessive penetrating current in response to an unstable output signal provided from main circuit. Even though the two power supply voltages are applied in different timing, the excessive current consumption in the output driving circuit is avoided, since timing coinciding circuit simultaneously starts and ends the supply of output power supply voltages.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: February 15, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yukinobu Adachi