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公开(公告)号:US09786352B2
公开(公告)日:2017-10-10
申请号:US14447287
申请日:2014-07-30
Applicant: Micron Technology, Inc.
Inventor: Kenji Yoshida , Hiroki Fujisawa
IPC: G11C11/406 , G11C11/4074 , G11C11/4076
CPC classification number: G11C11/40626 , G11C11/40611 , G11C11/40615 , G11C11/4074 , G11C11/4076 , G11C11/4094 , G11C2211/4061
Abstract: Disclosed herein is a semiconductor device that includes: a memory cell array including a plurality of memory groups each having a plurality of memory cells, the memory groups being selected by mutually different addresses; a first control circuit periodically executing a refresh operation on the memory groups in response to a first refresh command; and a second control circuit setting a cycle of executing the refresh operation by the first control circuit. The second control circuit sets the cycle to a first cycle until executing the refresh operation to all the memory groups after receiving the first refresh command, and the second control circuit sets the cycle to a second cycle that is longer than the first cycle after executing the refresh operation to all the memory groups.
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公开(公告)号:US20240395349A1
公开(公告)日:2024-11-28
申请号:US18667358
申请日:2024-05-17
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Yoshinori Fujiwara , Kenji Yoshida
Abstract: Apparatuses and methods for forcing memory cell failures in a memory device are disclosed. An example apparatus includes a column disable control circuit coupled to a plurality of column latch sets to receive match signals and associated column plane addresses, the column disable control circuit configured to provide redundant column select signals and column plane masking signals based on the match signals and associated column plane addresses, the column disable control circuit further configured to provide the redundant column select signal and the column plane masking signal corresponding to an active match signal and associated column plane address from a designated column latch set when a disable memory test mode is enabled to cause one or more memory cells of main memory to fail.
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公开(公告)号:US20180240511A1
公开(公告)日:2018-08-23
申请号:US15962886
申请日:2018-04-25
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Kenji Yoshida , Hiroki Fujisawa
IPC: G11C11/406 , G11C11/4094
CPC classification number: G11C11/40626 , G11C11/40611 , G11C11/40615 , G11C11/4074 , G11C11/4076 , G11C11/4094 , G11C2211/4061
Abstract: Apparatuses and methods for refreshing memory cells of a semiconductor device are described. An example apparatus includes: a memory cell array including a plurality of memory groups each having a plurality of memory cells, the memory groups being selected by mutually different addresses; a first control circuit periodically executing a refresh operation on the memory groups in response to a first refresh command; and a second control circuit setting a cycle of executing the refresh operation by the first control circuit. The second control circuit sets the cycle to a first cycle until executing the refresh operation to all the memory groups after receiving the first refresh command, and the second control circuit sets the cycle to a second cycle that is longer than the first cycle after executing the refresh operation to all the memory groups.
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公开(公告)号:US10056154B2
公开(公告)日:2018-08-21
申请号:US15668586
申请日:2017-08-03
Applicant: Micron Technology, Inc.
Inventor: Yoshinori Fujiwara , Kenji Yoshida , Minoru Someya , Hiromasa Noda
CPC classification number: G11C17/16 , G11C17/18 , G11C29/76 , G11C29/78 , G11C29/785 , G11C29/789
Abstract: Apparatuses and methods for transmitting fuse data from fuse arrays to latches are described. An example apparatus includes: a plurality of fuse arrays, each fuse array of the plurality of fuse arrays being configured to store input data; a fuse circuit that receives the input data and provides the input data on a bus; and a plurality of redundancy latch circuits coupled to the bus, including a plurality of pointers and a plurality of latches associated with the plurality of corresponding pointers that load data on the bus. The fuse circuit may control loading of the input data by controlling a location of a pointer among the plurality of corresponding pointers responsive to the input data.
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公开(公告)号:US09934869B1
公开(公告)日:2018-04-03
申请号:US15668586
申请日:2017-08-03
Applicant: Micron Technology, Inc.
Inventor: Yoshinori Fujiwara , Kenji Yoshida , Minoru Someya , Hiromasa Noda
CPC classification number: G11C17/16 , G11C17/18 , G11C29/76 , G11C29/78 , G11C29/785 , G11C29/789 , H05K999/99
Abstract: Apparatuses and methods for transmitting fuse data from fuse arrays to latches are described. An example apparatus includes: a plurality of fuse arrays, each fuse array of the plurality of fuse arrays being configured to store input data; a fuse circuit that receives the input data and provides the input data on a bus; and a plurality of redundancy latch circuits coupled to the bus, including a plurality of pointers and a plurality of latches associated with the plurality of corresponding pointers that load data on the bus. The fuse circuit may control loading of the input data by controlling a location of a pointer among the plurality of corresponding pointers responsive to the input data.
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公开(公告)号:US20150255169A1
公开(公告)日:2015-09-10
申请号:US14635894
申请日:2015-03-02
Applicant: Micron Technology, Inc.
Inventor: YUSUKE SAKAMOTO , Kenji Yoshida
IPC: G11C17/16 , H03K19/177
CPC classification number: G11C17/16 , G11C17/18 , G11C29/789 , H03K19/17768
Abstract: Disclosed herein is an apparatus that includes a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element, and a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal, the third voltage different from the second voltage.
Abstract translation: 本文公开了一种包括熔丝电路的装置,熔丝电路包括熔丝元件,熔丝电路被配置为提供响应于熔丝元件的状态的具有第一电压或第二电压的第一输出信号;以及感测电路, 第二输出信号具有响应于第一输出信号的第一电压或第三电压,第三电压不同于第二电压。
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公开(公告)号:US20150036445A1
公开(公告)日:2015-02-05
申请号:US14447287
申请日:2014-07-30
Applicant: Micron Technology. Inc.
Inventor: Kenji Yoshida , Hiroki Fujisawa
IPC: G11C11/406
CPC classification number: G11C11/40626 , G11C11/40611 , G11C11/40615 , G11C11/4074 , G11C11/4076 , G11C11/4094 , G11C2211/4061
Abstract: Disclosed herein is a semiconductor device that includes: a memory cell array including a plurality of memory groups each having a plurality of memory cells, the memory groups being selected by mutually different addresses; a first control circuit periodically executing a refresh operation on the memory groups in response to a first refresh command; and a second control circuit setting a cycle of executing the refresh operation by the first control circuit. The second control circuit sets the cycle to a first cycle until executing the refresh operation to all the memory groups after receiving the first refresh command, and the second control circuit sets the cycle to a second cycle that is longer than the first cycle after executing the refresh operation to all the memory groups.
Abstract translation: 本文公开了一种半导体器件,其包括:存储单元阵列,包括多个存储器组,每个存储器组具有多个存储器单元,所述存储器组由相互不同的地址选择; 第一控制电路响应于第一刷新命令周期性地对存储器组执行刷新操作; 以及第二控制电路,其设定由第一控制电路执行刷新操作的循环。 第二控制电路将周期设置为第一周期,直到在接收到第一刷新命令之后对所有存储器组执行刷新操作,并且第二控制电路将该周期设置为比执行第一刷新命令之后的第一周期长的第二周期 刷新所有内存组的操作。
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