ClassID:

199878

G11C2211/4061 - CPC Classification

Classification description:

Indexing scheme relating to digital stores characterized by the use of particular electric or magnetic storage elements; Storage elements therefor; Indexing scheme relating to cells needing refreshing or charge regeneration, i.e. dynamic cells; Refreshing of dynamic cells Calibration or ate or cycle tuning

Recent Application in this class:
#1
20260112404
2026-04-23

CALIBRATION CIRCUIT, MEMORY, SYSTEM AND CALIBRATION METHOD

#2
20260045290
2026-02-12

APPARATUS WITH REFRESH MANAGEMENT MECHANISM

#3
20250224885
2025-07-10

Maintenance Operations in a DRAM

#4
20250201328
2025-06-19

DRAM RETENTION TEST METHOD FOR DYNAMIC ERROR CORRECTION

#5
20240420789
2024-12-19

SELF-CALIBRATION IN A MEMORY DEVICE

#6
20240311021
2024-09-19

Maintenance operations in a DRAM

#7
20240265961
2024-08-08

SIGNAL TIMING ALIGNMENT BASED ON A COMMON DATA STROBE IN MEMORY DEVICES CONFIGURED FOR STACKED ARRANGEMENTS

#8
20240194239
2024-06-13

APPARATUS WITH REFRESH MANAGEMENT MECHANISM

#9
20240119991
2024-04-11

Dynamic Refresh Rate Control

#10
20230377668
2023-11-23

DRAM retention test method for dynamic error correction

#11
20230253024
2023-08-10

Techniques for memory system refresh

#12
20220375509
2022-11-24

Apparatus with refresh management mechanism

#13
20220328091
2022-10-13

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#14
20220291848
2022-09-15

Maintenance operations in a DRAM

#15
20220277787
2022-09-01

Temperature informed memory refresh

#16
20220276969
2022-09-01

SEDRAM-based stacked cache system and device and controlling method therefor

#17
20220254410
2022-08-11

Dynamic refresh rate control

#18
20220238152
2022-07-28

Performing an on demand refresh operation of a memory sub-system

#19
20220148645
2022-05-12

Apparatus with refresh management mechanism

#20
20210350843
2021-11-11

REFRESH RATE CONTROL FOR A MEMORY DEVICE

#21
20210335437
2021-10-28

DRAM retention test method for dynamic error correction

#22
20210241823
2021-08-05

Temperature informed memory refresh

#23
20210201987
2021-07-01

Dynamic refresh rate control

#24
20210134348
2021-05-06

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#25
20210020231
2021-01-21

Dynamic refresh rate control

#26
20210020230
2021-01-21

Memory devices and methods of controlling an auto-refresh operation of the memory devices

#27
20200411083
2020-12-31

Temperature informed memory refresh

#28
20200348859
2020-11-05

Maintenance operations in a DRAM

#29
20200335153
2020-10-22

Performing an on demand refresh operation of a memory sub-system

#30
20200279610
2020-09-03

Method for Retaining Data

#31
20200258565
2020-08-13

Refresh rate control for a memory device

#32
20200251162
2020-08-06

Temperature informed memory refresh

#33
20200168288
2020-05-28

DRAM retention test method for dynamic error correction

#34
20200135264
2020-04-30

Performing an on demand refresh operation of a memory sub-system

#35
20200098421
2020-03-26

Temperature informed memory refresh

#36
20200098418
2020-03-26

Refresh control device and memory device for latching an address randomly

#37
20200090730
2020-03-19

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#38
20190311763
2019-10-10

Memory devices and methods of controlling an auto-refresh operation of the memory devices

#39
20190303244
2019-10-03

Apparatus including refresh controller controlling refresh operation responsive to data error

#40
20190294348
2019-09-26

Maintenance operations in a DRAM

#41
20190198087
2019-06-27

Memory device for controlling refresh operation by using cell characteristic flags

#42
20190096473
2019-03-28

Memory device and control method thereof

#43
20190074052
2019-03-07

Using runtime reverse engineering to optimize DRAM refresh

#44
20190034099
2019-01-31

Maintenance operations in a DRAM

#45
20180293008
2018-10-11

Maintenance operations in a DRAM

#46
20180261276
2018-09-13

Refresh control device with plurality of oscillator circuits

#47
20180240511
2018-08-23

Apparatus and methods for refreshing memory cells of a semiconductor device

#48
20180068692
2018-03-08

Semiconductor device and power distribution network

#49
20180019012
2018-01-18

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#50
20170372767
2017-12-28

Semiconductor memory device performing refresh operation based on weak cell information stored in memory array region and operating method thereof

#51
20170352404
2017-12-07

Refresh control device with plurality of oscillator circuits

#52
20170345483
2017-11-30

Periodic ZQ calibration with traffic-based self-refresh in a multi-rank DDR system

#53
20170337984
2017-11-23

DRAM retention test method for dynamic error correction

#54
20170337964
2017-11-23

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#55
20170337952
2017-11-23

Dual-range clock duty cycle corrector

#56
20170316826
2017-11-02

Memory controller, storage device, information processing system, and memory controlling method

#57
20170192697
2017-07-06

Dynamic bandwidth throttling of DRAM accesses for memory tracing

#58
20170148502
2017-05-25

Memory management device, information processing system, and method of controlling memory management device

#59
20170116058
2017-04-27

Increased refresh interval and energy efficiency in a DRAM

#60
20170076780
2017-03-16

Memory device refresh commands on the fly

#61
20170052840
2017-02-23

Memory device and operating method thereof

#62
20170052722
2017-02-23

Maintenance operations in a DRAM

#63
20160343425
2016-11-24

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#64
20160240240
2016-08-18

Semiconductor memory device, semiconductor memory system and method for controlling self refresh cycle thereof

#65
20160217843
2016-07-28

Memory refresh method and devices

#66
20160211008
2016-07-21

Refresh rate adjust

#67
20160203854
2016-07-14

Semiconductor package with PoP structure and refresh control method thereof

#68
20160163373
2016-06-09

Memory device for controlling refresh operation by using cell characteristic flags

#69
20160155487
2016-06-02

Memory device, memory module including the memory device, method of fabricating the memory module, and method of repairing the memory module

#70
20160104522
2016-04-14

Method of use time management for semiconductor device and semiconductor device including use time managing circuit

#71
20160027498
2016-01-28

Reduced refresh power

#72
20160026533
2016-01-28

Apparatus including refresh controller controlling refresh operation responsive to data error

#73
20160012880
2016-01-14

Method of operating a volatile memory device and a memory controller

#74
20160005452
2016-01-07

Semiconductor memory device for controlling having different refresh operation periods for different sets of memory cells

#75
20150357012
2015-12-10

Systems and methods for processing data

#76
20150269985
2015-09-24

Semiconductor device having a memory and calibration circuit that adjusts output buffer impedance dependent upon auto-refresh commands

#77
20150243340
2015-08-27

Increased refresh interval and energy efficiency in a DRAM

#78
20150221360
2015-08-06

Semiconductor memory device

#79
20150213871
2015-07-30

Semiconductor memory device and method for refreshing memory cells

#80
20150213851
2015-07-30

Management of memory refresh power consumption

#81
20150187412
2015-07-02

Maintenance operations in a DRAM

#82
20150162065
2015-06-11

Refresh scheme for memory cells with next bit table

#83
20150138897
2015-05-21

Stack position determination in memory devices configured for stacked arrangements

#84
20150134890
2015-05-14

Memory controller, computing device with a memory controller, and method for calibrating data transfer of a memory system

#85
20150131389
2015-05-14

Semiconductor device, method for controlling the same, and semiconductor system

#86
20150109845
2015-04-23

Signal timing alignment based on a common data strobe in memory devices configured for stacked arrangements

#87
20150062999
2015-03-05

Memory device, memory module including the memory device, method of fabricating the memory module, and method of repairing the memory module

#88
20150043294
2015-02-12

Memory device, memory system and operating method thereof

#89
20150039967
2015-02-05

Memory device having adjustable refresh period and method of operating the same

#90
20150036445
2015-02-05

Semiconductor memory device including refresh operations having first and second cycles

#91
20150026537
2015-01-22

Memory device with over-refresh and method thereof

#92
20150016204
2015-01-15

Insertion-override counter to support multiple memory refresh rates

#93
20150009741
2015-01-08

Valid command detection based on stack position identifiers in memory devices configured for stacked arrangements

#94
20150009740
2015-01-08

Latency adjustment based on stack position identifier in memory devices configured for stacked arrangements

#95
20150009739
2015-01-08

Memory devices with serially connected signals for stacked arrangements

#96
20150009738
2015-01-08

Pad selection in memory devices configured for stacked arrangements

#97
20150003180
2015-01-01

Semiconductor device and operation method thereof

#98
20140321226
2014-10-30

Dynamic random access memory and boosted voltage producer therefor

#99
20140293725
2014-10-02

Memory with refresh logic to accommodate low-retention storage rows

#100
20140289575
2014-09-25

Systems and methods for testing pages of data stored in a memory module

#101
20140289574
2014-09-25

DRAM retention test method for dynamic error correction

#102
20140281202
2014-09-18

DRAM controller for variable refresh operation timing

#103
20140269123
2014-09-18

Semiconductor memory device and refresh method thereof

#104
20140241094
2014-08-28

Memory device refresh commands on the fly

#105
20140229785
2014-08-14

Method and apparatus for clock and data recovery

#106
20140211579
2014-07-31

Apparatus, method and system to determine memory access command timing based on error detection

#107
20140164692
2014-06-12

Managing errors in a DRAM by weak cell encoding

#108
20140043919
2014-02-13

Apparatus and method for hidden-refresh modification

#109
20140003178
2014-01-02

Semiconductor memory device

#110
20130282973
2013-10-24

Volatile memory device and a memory controller

#111
20130279284
2013-10-24

Semiconductor memory device and method for refreshing memory cells

#112
20130254475
2013-09-26

Memory refresh method and devices

#113
20130242674
2013-09-19

Semiconductor device, method for controlling the same, and semiconductor system

#114
20130215700
2013-08-22

Semiconductor memory device changing refresh interval depending on temperature

#115
20130170274
2013-07-04

Semiconductor memory device storing memory characteristic information, memory module and memory system having the same, and operating method thereof

#116
20130128682
2013-05-23

Memory system with dynamic refreshing

#117
20130124795
2013-05-16

Semiconductor device and data processing system with coordinated calibration and refresh operations

#118
20130111296
2013-05-02

Memory device having reconfigurable refresh timing

#119
20130031432
2013-01-31

Fully-buffered dual in-line memory module with fault correction

#120
20130016574
2013-01-17

Semiconductor memory device having improved refresh characteristics

#121
20130010562
2013-01-10

Dynamic random access memory device and method for self-refreshing memory cells with temperature compensated self-refresh

#122
20130007357
2013-01-03

Mechanism for facilitating fine-grained self-refresh control for dynamic memory devices

#123
20130003481
2013-01-03

Hidden refresh method and operating method for pseudo SRAM

#124
20130003467
2013-01-03

Digit line comparison circuits

#125
20120250388
2012-10-04

Variable memory refresh devices and methods

#126
20120224444
2012-09-06

Methods of operating DRAM devices having adjustable internal refresh cycles that vary in response to on-chip temperature changes

#127
20120155201
2012-06-21

System and method for hidden refresh rate modification

#128
20120151131
2012-06-14

Memory system with a programmable refresh cycle

#129
20120144106
2012-06-07

Memory device refresh commands on the fly

#130
20120069693
2012-03-22

Dynamic random access memory and boosted voltage producer therefor

#131
20120049918
2012-03-01

PERIODIC SIGNAL GENERATING CIRCUIT DEPENDENT UPON TEMPERATURE FOR ESTABLISHING A TEMPERATURE INDEPENDENT REFRESH FREQUENCY

#132
20110286287
2011-11-24

Semiconductor memory device with optimum refresh cycle according to temperature variation

#133
20110283060
2011-11-17

Maintenance operations in a DRAM

#134
20110273938
2011-11-10

Circuit and method for controlling a clock synchronizing circuit for low power refresh operation

#135
20110255357
2011-10-20

Dynamic random access memory (DRAM) refresh

#136
20110199844
2011-08-18

Semiconductor Memory Device Suitable for Mounting on a Portable Terminal

#137
20110194369
2011-08-11

Variable memory refresh devices and methods

#138
20110161579
2011-06-30

Method and system for minimizing impact of refresh operations on volatile memory performance

#139
20110134714
2011-06-09

Semiconductor memory device changing refresh interval depending on temperature

#140
20110134708
2011-06-09

Digit line comparison circuits

#141
20110122716
2011-05-26

DYNAMIC RANDOM ACCESS MEMORY DEVICE AND METHOD OF DETERMINING REFRESH CYCLE THEREOF

#142
20110116335
2011-05-19

Semiconductor memory device and system including the same

#143
20110116327
2011-05-19

Methods of operating DRAM devices having adjustable internal refresh cycles that vary in response to on-chip temperature changes

#144
20110110175
2011-05-12

Memory refresh system and operating method thereof

#145
20110087835
2011-04-14

Semiconductor memory device and data processing system

#146
20110069572
2011-03-24

Row address code selection based on locations of substandard memory cells

#147
20110066798
2011-03-17

Semiconductor device having a memory and calibration circuit that selectively adjusts an impedance of an output buffer dependent upon refresh commands

#148
20110035545
2011-02-10

Fully-buffered dual in-line memory module with fault correction

#149
20110029752
2011-02-03

Fully-buffered dual in-line memory module with fault correction

#150
20110007593
2011-01-13

Semiconductor memory device and access method

#151
20100302889
2010-12-02

Semiconductor memory and system

#152
20100302883
2010-12-02

Method of estimating self refresh period of semiconductor memory device

#153
20100262769
2010-10-14

Method and circuit for adjusting a self-refresh rate to maintain dynamic data at low supply voltages

#154
20100254208
2010-10-07

Semiconductor memory device, refresh control method thereof, and test method thereof

#155
20100254200
2010-10-07

Buffer control circuit of memory device

#156
20100208537
2010-08-19

Dynamic random access memory (DRAM) refresh

#157
20100195412
2010-08-05

Semiconductor device, method for controlling the same, and semiconductor system

#158
20100188915
2010-07-29

Self refresh operation of semiconductor memory device

#159
20100188914
2010-07-29

Self refresh operation of semiconductor memory device

#160
20100182862
2010-07-22

Semiconductor memory device and method of controlling auto-refresh

#161
20100180152
2010-07-15

Information processing device including a plurality of cells to store data, storage control device that controls a storage section including a plurality of cells to store data, and storage control method of controlling a refresh operation of a storage section including a plurality of cells to store data

#162
20100169726
2010-07-01

Information processing system

#163
20100165692
2010-07-01

Variable memory refresh devices and methods

#164
20100157714
2010-06-24

Apparatus and method for self-refreshing dynamic random access memory cells

#165
20100157711
2010-06-24

Self-refresh based power saving circuit and method

#166
20100156455
2010-06-24

Impedance calibration period setting circuit and semiconductor integrated circuit

#167
20100142304
2010-06-10

Dynamic random access memory device and method for self-refreshing memory cells with temperature compensated self-refresh

#168
20100117716
2010-05-13

Periodic signal generating circuit dependent upon temperature for establishing a temperature independent refresh frequency

#169
20100106901
2010-04-29

Memory refreshing circuit and method for memory refresh

#170
20100097874
2010-04-22

Method and apparatus for performing internal hidden refreshes while latching read/write commands, address and data information for later operation

#171
20100054070
2010-03-04

Method and system for controlling refresh to avoid memory cell data losses

#172
20100014371
2010-01-21

Circuit and method for controlling a clock synchronizing circuit for low power refresh operation

#173
20090323449
2009-12-31

Circuit and method for controlling self-refresh cycle

#174
20090296509
2009-12-03

Voltage regulator circuit for a memory circuit

#175
20090282189
2009-11-12

Memory controller with refresh logic to accommodate low-retention storage rows in a memory device

#176
20090273970
2009-11-05

Memory device including a programmable resistance element

#177
20090249169
2009-10-01

Systems, methods, and apparatuses to save memory self-refresh power

#178
20090245325
2009-10-01

Semiconductor memory device with temperature sensing device and operation thereof

#179
20090225617
2009-09-10

System and method for hidden-refresh rate modification

#180
20090193301
2009-07-30

Semiconductor memory device and refresh period controlling method

#181
20090168589
2009-07-02

Thermal code transmission circuit and semiconductor memory device using the same

#182
20090168571
2009-07-02

Dynamic random access memory device and method of determining refresh cycle thereof

#183
20090161459
2009-06-25

Dynamic random access memory with low-power refresh

#184
20090161456
2009-06-25

Semiconductor memory device which delays refreshment signal for performing self-refreshment

#185
20090154279
2009-06-18

Refresh period signal generator with digital temperature information generation function

#186
20090147607
2009-06-11

RANDOM ACCESS MEMORY AND DATA REFRESHING METHOD THEREOF

#187
20090141576
2009-06-04

Method of refreshing data in a storage location based on heat dissipation level and system thereof

#188
20090141575
2009-06-04

Method and apparatus for idle cycle refresh request in DRAM

#189
20090129214
2009-05-21

MEMORY CONTROL DEVICE

#190
20090122631
2009-05-14

Dynamic random access memory device and method for self-refreshing memory cells with temperature compensated self-refresh

#191
20090103384
2009-04-23

Apparatus and method for self-refreshing dynamic random access memory cells

#192
20090091997
2009-04-09

Semiconductor memory device suitable for mounting on portable terminal

#193
20090089494
2009-04-02

Memory control apparatus, memory control method, and computer program with refresh commands at optimum intervals

#194
20090086560
2009-04-02

Memory device with self refresh cycle control function

#195
20090073795
2009-03-19

Dynamic random access memory and boosted voltage producer therefor

#196
20090073794
2009-03-19

Method for hiding a refresh in a pseudo-static memory

#197
20090067260
2009-03-12

Buffer control circuit of memory device

#198
20090052265
2009-02-26

Semiconductor memory device changing refresh interval depending on temperature

#199
20090046531
2009-02-19

Circuit and method for controlling refresh periods in semiconductor memory devices

#200
20090040856
2009-02-12

Semiconductor memory device changing refresh interval depending on temperature

#201
20090040851
2009-02-12

Semiconductor memory, test method of semiconductor memory and system

#202
20090034350
2009-02-05

Method and apparatus for varying the programming duration and/or voltage of an electrically floating body transistor, and memory cell array implementing same

#203
20090022002
2009-01-22

Semiconductor memory device

#204
20090016136
2009-01-15

Oscillation device, method of oscillation, and memory device

#205
20090016135
2009-01-15

Oscillating device, method of adjusting the same and memory

#206
20090010048
2009-01-08

Memory device including a programmable resistance element

#207
20080316848
2008-12-25

Semiconductor memory device and driving method therefor

#208
20080247256
2008-10-09

Refresh signal generator of semiconductor memory device

#209
20080239854
2008-10-02

Semiconductor memory, system, and operating method of semiconductor memory

#210
20080239852
2008-10-02

Test feature to improve DRAM charge retention yield

#211
20080224785
2008-09-18

Temperature tracking oscillator circuit

#212
20080159041
2008-07-03

Semiconductor memory and operating method of same

#213
20080151671
2008-06-26

Method and system for controlling refresh to avoid memory cell data losses

#214
20080126893
2008-05-29

METHOD OF REFRESHING A DYNAMIC RANDOM ACCESS MEMORY AND CORRESPONDING DYNAMIC RANDOM ACCESS MEMORY DEVICE, IN PARTICULAR INCORPORATED INTO A CELLULAR MOBILE TELEPHONE

#215
20080123456
2008-05-29

Semiconductor memory device suitable for mounting on portable terminal

#216
20080112248
2008-05-15

Refresh period adjustment technique for dynamic random access memories (DRAM) and integrated circuit devices incorporating embedded DRAM

#217
20080062799
2008-03-13

Circuit and method for selecting test self-refresh period of semiconductor memory device

#218
20080062797
2008-03-13

Refresh sequence control for multiple memory elements

#219
20080062776
2008-03-13

Semiconductor memory device having complete hidden refresh function

#220
20080056046
2008-03-06

Apparatus and method for self-refreshing dynamic random access memory cells

#221
20080031068
2008-02-07

Dynamic memory refresh configurations and leakage control methods

#222
20080016272
2008-01-17

METHOD OF REFRESHING DYNAMIC RANDOM ACCESS MEMORY, IN PARTICULAR IN STANDBY MODE AND IN ACTIVE OPERATING MODE, AND CORRESPONDING DYNAMIC RANDOM ACCESS MEMORY DEVICE, FOR EXAMPLE INCORPORATED INTO A CELLULAR MOBILE TELEPHONE

#223
20080013392
2008-01-17

Semiconductor memory device

#224
20080002503
2008-01-03

Method and system for controlling refresh to avoid memory cell data losses

#225
20070291568
2007-12-20

Apparatus and method for controlling refresh operation of semiconductor integrated circuit

#226
20070286005
2007-12-13

Dynamic random access memory device and method for self-refreshing memory cells with temperature compensated self-refresh

#227
20070274147
2007-11-29

Integrated semiconductor memory and method for operating an integrated semiconductor memory

#228
20070274145
2007-11-29

Refresh control circuit in semiconductor memory apparatus and method of controlling period of refresh signal using the same

#229
20070268768
2007-11-22

Semiconductor memory

#230
20070268767
2007-11-22

Circuit and method for controlling self-refresh cycle

#231
20070268766
2007-11-22

Semiconductor memory and refresh cycle control method

#232
20070253269
2007-11-01

Dynamic random access memory device and method for self-refreshing memory cells with temperature compensated self-refresh

#233
20070247944
2007-10-25

Integrated Semiconductor Memory with Refreshing of Memory Cells

#234
20070242547
2007-10-18

Self refresh operation of semiconductor memory device

#235
20070242546
2007-10-18

Semiconductor memory device which controls refresh of a memory array in normal operation

#236
20070242540
2007-10-18

Semiconductor memory device with temperature sensing device and operation thereof

#237
20070237017
2007-10-11

Apparatus and method of detecting refresh cycle of semiconductor memory

#238
20070230265
2007-10-04

Semiconductor storage device and refresh control method therefor

#239
20070223299
2007-09-27

Memory with a temperature sensor, dynamic memory and memory with a clock unit and method of sensing a temperature of a memory

#240
20070211550
2007-09-13

Non-skipping auto-refresh in a DRAM

#241
20070206431
2007-09-06

Memory circuit with automatic precharge function, and integrated circuit device with automatic internal command function

#242
20070201292
2007-08-30

Memory circuit with automatic precharge function, and integrated circuit device with automatic internal command function

#243
20070195628
2007-08-23

Memory circuit with automatic precharge function, and integrated circuit device with automatic internal command function

#244
20070171753
2007-07-26

Method and system for low power refresh of dynamic random access memories

#245
20070171752
2007-07-26

Method for low power refresh of a dynamic random access memory using a slower refresh rate than a normal refresh rate

#246
20070171751
2007-07-26

Device and method for controlling refresh rate of memory

#247
20070171750
2007-07-26

Apparatus and method for self-refreshing dynamic random access memory cells

#248
20070168812
2007-07-19

Fully-buffered dual in-line memory module with fault correction

#249
20070168811
2007-07-19

Fully-buffered dual in-line memory module with fault correction

#250
20070168810
2007-07-19

Fully-buffered dual in-line memory module with fault correction

#251
20070168781
2007-07-19

Fully-buffered dual in-line memory module with fault correction

#252
20070159906
2007-07-12

Semiconductor memory device, refresh control method thereof, and test method thereof

#253
20070157046
2007-07-05

Mechanism for self refresh during advanced configuration and power interface (ACPI) standard C0 power state

#254
20070153607
2007-07-05

Semiconductor memory device changing refresh interval depending on temperature

#255
20070147155
2007-06-28

Memory Device Having a Configurable Oscillator for Refresh Operation

#256
20070147154
2007-06-28

Semiconductor device

#257
20070145578
2007-06-28

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