Patents by Inventor Yoshio Mizukane
Yoshio Mizukane 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: 20230410874Abstract: Apparatuses, systems, and methods for partial array self refresh masking. A memory bank may be divided into a number of segments, each of which is associated with partial-array self-refresh (PASR) logic which provides a mask signal. The mask signal may be deactivated responsive to an access operation performed on the associated segment. While the mask signal is deactivated, self-refresh operations are performed on the segment. A period of time after deactivating the mask signal, the mask signal may be reactivated.Type: ApplicationFiled: May 31, 2022Publication date: December 21, 2023Applicant: MICRON TECHNOLOGY, INC.Inventors: YUKIMI MORIMOTO, YOSHIO MIZUKANE, HIDEKAZU NOGUCHI
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Publication number: 20230402070Abstract: Apparatuses and methods for controlling access to memory cell matrices are described. An example apparatus includes: a plurality of memory cell matrices including memory cells, a plurality of sections wherein each section is included in a memory cell matrix of the plurality of memory cell matrices; a section predecoder that activates one section signal among a plurality of corresponding section signals responsive to a portion of row address signals; a section selection control circuit that provides a set of first section sub signals including an active first section sub signal and a set of second section sub signals including an active second section sub signal based on the plurality of section signals; and a plurality of section selection circuits corresponding to the plurality of sections. One section selection circuit among the plurality of section selection circuits activates the corresponding section responsive to the active first and second section sub signals.Type: ApplicationFiled: June 14, 2022Publication date: December 14, 2023Applicant: Micron Technology, Inc.Inventors: MANAMI SENOO, HIDEKAZU NOGUCHI, YOSHIO MIZUKANE
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Patent number: 8837242Abstract: A method includes selecting a word line included in one of a plurality of memory mats based on a row address, where each of the plurality of memory mats includes a plurality of word lines, a plurality of bit lines, and a redundant bit line, selecting one of the bit lines included in the selected memory mat based on a column address, selecting, by a column relief circuit, the redundant bit line in place of the one of the bit lines to be selected based on the column address, in response to the column address indicating a defective address, activating the column relief circuit when the row address is supplied in response to a first command, and inactivating the column relief circuit when the row address is supplied in response to a second command.Type: GrantFiled: January 24, 2014Date of Patent: September 16, 2014Assignee: PS4 Luxco S.A.R.L.Inventors: Yoshiro Riho, Yoshio Mizukane, Hiromasa Noda
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Publication number: 20140140155Abstract: A method includes selecting a word line included in one of a plurality of memory mats based on a row address, where each of the plurality of memory mats includes a plurality of word lines, a plurality of bit lines, and a redundant bit line, selecting one of the bit lines included in the selected memory mat based on a column address, selecting, by a column relief circuit, the redundant bit line in place of the one of the bit lines to be selected based on the column address, in response to the column address indicating a defective address, activating the column relief circuit when the row address is supplied in response to a first command, and inactivating the column relief circuit when the row address is supplied in response to a second command.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Inventors: Yoshiro Riho, Yoshio Mizukane, Hiromasa Noda
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Patent number: 8638625Abstract: Disclosed herein is a device that responds to mat selection information, which is used to select one of memory mats, and selects at least one defective address from a plurality of defective addresses which are stored, for example, in a fuse circuit. When the access address information is coincident with a selected defective address, a redundant memory cell is accessed for reading or writing data in place of a normal memory cell. In a refresh operation, on the other hand, a column addressing, including the above replacement of a normal memory cell with a redundant memory cell, is deactivated.Type: GrantFiled: February 15, 2012Date of Patent: January 28, 2014Assignee: Elpida Memory, Inc.Inventors: Yoshiro Riho, Yoshio Mizukane, Hiromasa Noda
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Patent number: 8618853Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: GrantFiled: June 14, 2013Date of Patent: December 31, 2013Inventors: Yoshio Mizukane, Hiroki Fujisawa
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Publication number: 20130278310Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: ApplicationFiled: June 14, 2013Publication date: October 24, 2013Inventors: Yoshio MIZUKANE, Hiroki FUJISAWA
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Patent number: 8493110Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: GrantFiled: July 15, 2011Date of Patent: July 23, 2013Assignee: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa
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Semiconductor device having nonvolatile memory element and data processing system including the same
Patent number: 8274843Abstract: A semiconductor device includes a fuse element, a read-out circuit that reads out a memory content of the fuse element in response to a first internal reset signal that is activated in response to transition of an external reset signal, and a latch circuit that holds therein the memory content read out by the read-out circuit and is reset by a second internal reset signal that is activated based on an activation period of the external reset signal. With this configuration, even when the activation period of the external reset signal is long, the time for which a current flows through the fuse element can be shortened, thereby making it possible to reduce a current consumption at the time of a reset operation.Type: GrantFiled: January 28, 2010Date of Patent: September 25, 2012Assignee: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa -
Semiconductor device having nonvolatile memory element and data processing system including the same
Patent number: 8270228Abstract: A semiconductor device includes a fuse element, a read-out circuit that reads out a memory content of the fuse element in response to a first internal reset signal that is activated in response to transition of an external reset signal, and a latch circuit that holds therein the memory content read out by the read-out circuit and is reset by a second internal reset signal that is activated based on an activation period of the external reset signal. With this configuration, even when the activation period of the external reset signal is long, the time for which a current flows through the fuse element can be shortened, thereby making it possible to reduce a current consumption at the time of a reset operation.Type: GrantFiled: June 10, 2010Date of Patent: September 18, 2012Assignee: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa -
Publication number: 20120213021Abstract: Disclosed herein is a device that responds to mat selection information, which is used to select one of memory mats, and selects at least one defective address from a plurality of defective addresses which are stored, for example, in a fuse circuit. When the access address information is coincident with a selected defective address, a redundant memory cell is accessed for reading or writing data in place of a normal memory cell. In a refresh operation, on the other hand, a column addressing, including the above replacement of a normal memory cell with a redundant memory cell, is deactivated.Type: ApplicationFiled: February 15, 2012Publication date: August 23, 2012Applicant: Elpida Memory, Inc.Inventors: Yoshiro Riho, Yoshio Mizukane, Hiromasa Noda
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Patent number: 8144524Abstract: To include a plurality of pad groups each including a first data I/O pad, a first power supply pad, a second data I/O pad, and a second power supply pad arranged in order in an X direction. The first data I/O pad is connected to a first data I/O buffer, and the second data I/O pad is connected to a second data I/O buffer. The first power supply pad supplies a first power supply potential to the first and second data I/O buffers, and the second power supply pad supplies a second power supply potential to the first and second data I/O buffers. The first data I/O pad included in each of the pad groups is adjacent to the second power supply pad included in other pad group or any one of a plurality of power supply pads not included in any one of the pad groups.Type: GrantFiled: September 10, 2010Date of Patent: March 27, 2012Assignee: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa
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Publication number: 20110279157Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: ApplicationFiled: July 15, 2011Publication date: November 17, 2011Applicant: ELPIDA MEMORY, INC.Inventors: Yoshio MIZUKANE, Hiroki FUJISAWA
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Patent number: 8004325Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: GrantFiled: May 20, 2009Date of Patent: August 23, 2011Assignee: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa
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Publication number: 20110063925Abstract: To include a plurality of pad groups each including a first data I/O pad, a first power supply pad, a second data I/O pad, and a second power supply pad arranged in order in an X direction. The first data I/O pad is connected to a first data I/O buffer, and the second data I/O pad is connected to a second data I/O buffer. The first power supply pad supplies a first power supply potential to the first and second data I/O buffers, and the second power supply pad supplies a second power supply potential to the first and second data I/O buffers. The first data I/O pad included in each of the pad groups is adjacent to the second power supply pad included in other pad group or any one of a plurality of power supply pads not included in any one of the pad groups.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa
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SEMICONDUCTOR DEVICE HAVING NONVOLATILE MEMORY ELEMENT AND DATA PROCESSING SYSTEM INCLUDING THE SAME
Publication number: 20100302875Abstract: A semiconductor device includes a fuse element, a read-out circuit that reads out a memory content of the fuse element in response to a first internal reset signal that is activated in response to transition of an external reset signal, and a latch circuit that holds therein the memory content read out by the read-out circuit and is reset by a second internal reset signal that is activated based on an activation period of the external reset signal. With this configuration, even when the activation period of the external reset signal is long, the time for which a current flows through the fuse element can be shortened, thereby making it possible to reduce a current consumption at the time of a reset operation.Type: ApplicationFiled: June 10, 2010Publication date: December 2, 2010Applicant: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa -
SEMICONDUCTOR DEVICE HAVING NONVOLATILE MEMORY ELEMENT AND DATA PROCESSING SYSTEM INCLUDING THE SAME
Publication number: 20100208528Abstract: A semiconductor device includes a fuse element, a read-out circuit that reads out a memory content of the fuse element in response to a first internal reset signal that is activated in response to transition of an external reset signal, and a latch circuit that holds therein the memory content read out by the read-out circuit and is reset by a second internal reset signal that is activated based on an activation period of the external reset signal. With this configuration, even when the activation period of the external reset signal is long, the time for which a current flows through the fuse element can be shortened, thereby making it possible to reduce a current consumption at the time of a reset operation.Type: ApplicationFiled: January 28, 2010Publication date: August 19, 2010Applicant: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa -
Publication number: 20090289677Abstract: A device in which a clock generation circuit is connected to a counter circuit for controlling operation timing of a DLL circuit or the like, and the counter circuit is intermittently operated by intermittently supplying a clock signal to the counter circuit from the clock generation circuit.Type: ApplicationFiled: May 20, 2009Publication date: November 26, 2009Applicant: Elpida Memory, Inc.Inventors: Yoshio Mizukane, Hiroki Fujisawa