Patents by Inventor Yukihide Suzuki

Yukihide Suzuki 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: 11322194
    Abstract: Compensating for offsets in buffers and related systems, methods, and devices are disclosed. An apparatus includes buffers, control circuitry, and fuses. Each of the buffers includes an output and an offset adjustment input. Each of the buffers is controllable to adjust a direct current offset of an output voltage potential responsive to an offset adjustment code provided to the offset adjustment input. The control circuitry includes sets of offset latches. The offset adjustment input of each of the buffers is operably coupled to a different one of the sets of offset latches. Each set of offset latches is configured to provide the offset adjustment code to the offset adjustment input of a corresponding buffer. The fuses are configured to provide the offset adjustment code to each of a subset of the sets of offset latches.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: May 3, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Minoru Someya, Yukihide Suzuki, Sadayuki Okuma
  • Publication number: 20210134350
    Abstract: Compensating for offsets in buffers and related systems, methods, and devices are disclosed. An apparatus includes buffers, control circuitry, and fuses. Each of the buffers includes an output and an offset adjustment input. Each of the buffers is controllable to adjust a direct current offset of an output voltage potential responsive to an offset adjustment code provided to the offset adjustment input. The control circuitry includes sets of offset latches. The offset adjustment input of each of the buffers is operably coupled to a different one of the sets of offset latches. Each set of offset latches is configured to provide the offset adjustment code to the offset adjustment input of a corresponding buffer. The fuses are configured to provide the offset adjustment code to each of a subset of the sets of offset latches.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Minoru Someya, Yukihide Suzuki, Sadayuki Okuma
  • Patent number: 10937486
    Abstract: Compensating for offsets in buffers and related systems, methods, and devices are disclosed. An apparatus includes buffers, control circuitry, and fuses. Each of the buffers includes an output and an offset adjustment input. Each of the buffers is controllable to adjust a direct current offset of an output voltage potential responsive to an offset adjustment code provided to the offset adjustment input. The control circuitry includes sets of offset latches. The offset adjustment input of each of the buffers is operably coupled to a different one of the sets of offset latches. Each set of offset latches is configured to provide the offset adjustment code to the offset adjustment input of a corresponding buffer. The fuses are configured to provide the offset adjustment code to each of a subset of the sets of offset latches.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: March 2, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Minoru Someya, Yukihide Suzuki, Sadayuki Okuma
  • Patent number: 7710142
    Abstract: A semiconductor integrated circuit includes power supply pads of two or more kinds, switches each of which is connected between adjacent two of the power supply pads to allow short-circuiting them, and at least one control line connected to control terminals of the switches according to the kinds of the power supply pads connected to the switches.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: May 4, 2010
    Assignee: Elpida Memory, Inc.
    Inventors: Ryo Hirano, Yukihide Suzuki, Hidekazu Egawa
  • Publication number: 20090134892
    Abstract: A semiconductor integrated circuit includes power supply pads of two or more kinds, switches each of which is connected between adjacent two of the power supply pads to allow short-circuiting them, and at least one control line connected to control terminals of the switches according to the kinds of the power supply pads connected to the switches.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 28, 2009
    Applicant: Elpida Memory, Inc.
    Inventors: Ryo HIRANO, Yukihide SUZUKI, Hidekazu EGAWA
  • Patent number: 7216198
    Abstract: In a semiconductor integrated circuit device, a command decoder is adapted to receive not only an external command but also an internal command. An ECC controller has a command generator and an address generator. When the command decoder decodes an external entry command, the command generator instructs encoding to an ECC-CODEC circuit and the address generator sequentially produces addresses which are supplied to a memory array. The ECC-CODEC circuit produces check bits for error detection/correction with reference to information data of the memory array. Upon completion of an encoding operation of writing the check bits into a predetermined region of the memory array, the ECC controller delivers an end signal to the command decoder as the internal command to make a super self-refresh control circuit start a super self-refresh operation.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: May 8, 2007
    Inventors: Yutaka Ito, Takayuki Aisu, Yukihide Suzuki
  • Publication number: 20040221098
    Abstract: In a semiconductor integrated circuit device, a command decoder 8 is adapted to receive not only an external command but also an internal command. An ECC controller 6 has a command generator and an address generator. When the command decoder 8 decodes an external entry command, the command generator instructs encoding to an ECC-CODEC circuit 7 and the address generator sequentially produces addresses which are supplied to a memory array. The ECC-CODEC circuit 7 produces check bits for error detection/correction with reference to information data of the memory array. Upon completion an encoding operation of writing the check bits into a predetermined region of the memory array, the ECC controller 6 delivers an end signal to the command decoder as the internal command to make a super self-refresh control circuit 9 start a super self-refresh operation.
    Type: Application
    Filed: October 30, 2003
    Publication date: November 4, 2004
    Inventors: Yutaka Ito, Takayuki Aisu, Yukihide Suzuki
  • Patent number: 6707139
    Abstract: A plurality of unit areas having one to a plurality of MOSFETs for implementing specific logic circuits are placed in a first direction. A first interconnection extending in the first direction is formed over each unit area. A second interconnection extending in the first direction is formed along the plurality of unit areas and outside the unit areas. Wiring dedicated areas provided with a third interconnection extending in a second direction intersecting the first direction are respectively provided between the adjacent unit areas. A logic circuit formed in each unit area has both a first connection form connected to the first interconnection and a second connection form connected to the third interconnection, via the second interconnection, according to combinations with the wiring dedicated areas adjacent thereto, as needed.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: March 16, 2004
    Assignees: Hitachi, Ltd., Hitachi, ULSI Systems Co., LTD
    Inventors: Isamu Fujii, Kiyoshi Nakai, Yukihide Suzuki, Sadayuki Morita, Hidekazu Egawa, Katura Abe, Noriaki Sakamoto
  • Patent number: 6633508
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: October 14, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 6518835
    Abstract: In a semiconductor integrated circuit device which comprises a first interconnect channel including a plurality of second-layer metal interconnect layers extended in a first direction over a semiconductor chip, a second interconnect channel including a plurality of, third-layer metal interconnect layers extended in a second direction perpendicular to the first direction, an internal power supply circuit which receives a source voltage supplied from an external terminal and generates a voltage different from the source voltage, and which is provided with stabilizing capacitors, a large part of the stabilizing capacitors are formed in an area in which the second- and third-layer metal interconnect lines intersect each other.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 11, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co. Ltd.
    Inventors: Yoshiro Riho, Kiyoshi Nakai, Hidekazu Egawa, Yukihide Suzuki, Isamu Fujii
  • Publication number: 20020130714
    Abstract: In a semiconductor integrated circuit device which comprises a first interconnect channel including a plurality of second-layer metal interconnect layers extended in a first direction over a semiconductor chip, a second interconnect channel including a plurality of third-layer metal interconnect layers extended in a second direction perpendicular to the first direction, an internal power supply circuit which receives a source voltage supplied from an external terminal and generates a voltage different from the source voltage, and which is provided with stabilizing capacitors, a large part of the stabilizing capacitors are occupied by capacitors formed in an area in which the second- and third-layer metal interconnect lines intersect each other.
    Type: Application
    Filed: May 13, 2002
    Publication date: September 19, 2002
    Inventors: Yoshiro Riho, Kiyoshi Nakai, Hidekazu Egawa, Yukihide Suzuki, Isamu Fujii
  • Patent number: 6411160
    Abstract: In a semiconductor integrated circuit device which comprises a first interconnect channel including a plurality of second-layer metal interconnect layers extended in a first direction over a semiconductor chip, a second interconnect channel including a plurality of third-layer metal interconnect layers extended in a second direction perpendicular to the first direction, an internal power supply circuit which receives a source voltage supplied from an external terminal and generates a voltage different from the source voltage, and which is provided with stabilizing capacitors, a large part of the stabilizing capacitors are in an area in which the second- and third-layer metal interconnect lines intersect each other.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: June 25, 2002
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Yoshiro Riho, Kiyoshi Nakai, Hidekazu Egawa, Yukihide Suzuki, Isamu Fujii
  • Publication number: 20020031036
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Application
    Filed: August 28, 2001
    Publication date: March 14, 2002
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Publication number: 20020030212
    Abstract: A plurality of unit areas having one to a plurality of MOSFETs for implementing specific logic circuits are placed in a first direction. A first interconnection extending in the first direction is formed over each unit area. A second interconnection extending in the first direction is formed along the plurality of unit areas and outside the unit areas. Wiring dedicated areas provided with a third interconnection extending in a second direction intersecting the first direction are respectively provided between the adjacent unit areas. A logic circuit formed in each unit area has both a first connection form connected to the first interconnection and a second connection form connected to the third interconnection, via the second interconnection, according to combinations with the wiring dedicated areas adjacent thereto, as needed.
    Type: Application
    Filed: August 14, 2001
    Publication date: March 14, 2002
    Inventors: Isamu Fujii, Kiyoshi Nakai, Yukihide Suzuki, Sadayuki Morita, Hidekazu Egawa, Katura Abe, Noriaki Sakamoto
  • Patent number: 6282141
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: August 28, 2001
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 6274895
    Abstract: A plurality of unit areas having one to a plurality of MOSFETs for implementing specific logic circuits are placed in a first direction. A first interconnection extending in the first direction is formed over each unit area. A second interconnection extending in the first direction is formed along the plurality of unit areas and outside the unit areas. Wiring dedicated areas provided with a third interconnection extending in a second direction intersecting the first direction are respectively provided between the adjacent unit areas. A logic circuit formed in each unit area has both a first connection form connected to the first interconnection and a second connection form connected to the third interconnection via the second interconnection according to combinations with the wiring dedicated areas adjacent thereto as needed.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: August 14, 2001
    Assignees: Hitachi, LTD, Hitachi ULSI Systems Co., LTD
    Inventors: Isamu Fujii, Kiyoshi Nakai, Yukihide Suzuki, Sadayuki Morita, Hidekazu Egawa, Katura Abe, Noriaki Sakamoto
  • Patent number: 6064605
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 16, 2000
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 5969996
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: October 19, 1999
    Assignee: Hiachi, Ltd.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 5862086
    Abstract: A semiconductor storage device is provided with a storage circuit for a faulty address and a plurality of redundant word lines corresponding to the storage circuit. The storage circuit is adapted to store a faulty address required for selecting a redundant word line. The faulty address is compared with an address input at the time of memory access by a comparator. Using a coincidence signal produced from the comparator and a predetermined address signal contained in the input address, a defect relief circuit selects one of the redundant word lines in place of the faulty word line.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: January 19, 1999
    Assignees: Hitachi Ltd., Texas Instuments Incorporated
    Inventors: Chisa Makimura, Yukihide Suzuki, Shunichi Sukegawa, Hiroyuki Fujiwara, Masayuki Hira
  • Patent number: 5844915
    Abstract: A word line leak check test for a semiconductor memory arranged as a matrix which includes word lines and y-selection lines. First, a RAS signal is enabled while a prescribed row address is input, and word line 22 is driven to the Vpp level. Then, when the CAS signal is enabled, the voltage source is disconnected from word line 22, and word line 22 floats. Two bits for the column address are disregarded, and the Y selection signal line 23 is decoded without those 2 bits. By this means, 4 y-selection signal lines 23 are simultaneously enabled. When this condition has been maintained for a prescribed time T, a delayed write operation is conducted, and then it is determined whether the data has been correctly stored in memory cell 24.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: December 1, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: Yoritaka Saitoh, Shunichi Sukegawa, Makoto Saeki, Yukihide Suzuki