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1. 发明申请

US20170117061A1 BURN-IN MEMORY TESTING 有权
公开(公告)号：US20170117061A1
公开(公告)日：2017-04-27
申请号：US14920696
申请日：2015-10-22
申请人： SANDISK TECHNOLOGIES INC.
发明人： Eran Sharon , Alexander Bazarsky , Ariel Navon , Alon Eyal , Idan Alrod , Ofer Shapira
IPC分类号： G11C29/38 , G11C29/44
CPC分类号： G11C29/38 , G11C29/06 , G11C29/44
摘要： A method performed by a controller includes initiating a first data write operation and an erase operation on a portion of a non-volatile memory. The first data write operation corresponds to a first write resolution. The method includes initiating a second data write operation to write test data to the portion of the non-volatile memory. The second data write operation corresponds to a second write resolution that is greater than the first write resolution. The method also includes reading a representation of the test data from the portion of the non-volatile memory.

2. 发明申请

US20160211035A1 Selective Online Burn-In with Adaptive and Delayed Verification Methods for Memory 有权
标题翻译：选择性在线在线刻录与自适应和延迟的内存验证方法
公开(公告)号：US20160211035A1
公开(公告)日：2016-07-21
申请号：US14600342
申请日：2015-01-20
申请人： SanDisk Technologies Inc.
发明人： Ofer Shapira , Eran Sharon , Idan Alrod
IPC分类号： G11C16/34 , G06F11/07 , G11C29/04 , G11C16/14 , G11C16/26
CPC分类号： G11C16/3459 , G06F11/073 , G06F11/0751 , G06F11/079 , G06F11/1068 , G06F11/108 , G11C11/5628 , G11C16/14 , G11C29/04 , G11C29/06 , G11C29/08 , G11C29/44 , G11C29/4401 , G11C29/883
摘要： A memory is released for use without pre-verification of its memory blocks as being defect free. Some memory blocks are subjected to a verification process when the computer memory is in use in order to verify a minimum number of memory blocks required for high performance program operation as being defect free. The verification process continues as the computer memory is in use in order to maintain the minimum number of memory blocks required for high performance operation in the verified defect free state. A verification mode of either no verification, delayed verification, or immediate verification is applied to memory blocks used for regular performance program operation. Delayed verification is maintained until an ability to recover the stored data is going to be lost. Immediate verification can be performed using bit error rate analysis. Some verification processes are performed using aggressive programming trim and/or multiple word line sensing for faster programming.
摘要翻译：内存被释放使用，而不会将其内存块预先验证为无缺陷。当使用计算机存储器时，为了将高性能程序操作所需的最少数量的存储器块验证为无缺陷，一些存储器块经受验证过程。随着计算机存储器正在使用，验证过程继续进行，以便在验证的无缺陷状态下保持高性能操作所需的最小数量的存储器块。无需验证，延迟验证或立即验证的验证模式适用于用于常规性能程序操作的内存块。维持延迟验证，直到恢复存储的数据的能力将丢失。可以使用误码率分析进行立即验证。使用积极的编程修剪和/或多个字线检测来执行一些验证过程，以实现更快的编程。

3. 发明授权

US09524794B1 Constrained data shaping 有权
标题翻译：约束数据整形
公开(公告)号：US09524794B1
公开(公告)日：2016-12-20
申请号：US14822450
申请日：2015-08-10
申请人： SANDISK TECHNOLOGIES INC.
发明人： Ofer Shapira
IPC分类号： G11C16/02 , G11C16/34 , G06F12/02
CPC分类号： G11C16/3495 , G06F12/0246 , G11C7/1006 , G11C16/10 , G11C16/349
摘要： A device includes a non-volatile memory and a controller coupled to the non-volatile memory. The controller is configured to determine a first shaping level corresponding to applying a first shaping operation to data to be stored to the non-volatile memory. The controller is further configured to, in response to the first shaping level exceeding a threshold, perform a second shaping operation to generate shaped data that corresponds to the data, the shaped data having a second shaping level that is less than the threshold.
摘要翻译：一种设备包括非易失性存储器和耦合到非易失性存储器的控制器。控制器被配置为确定对应于对要被存储到非易失性存储器的数据应用第一整形操作的第一整形级别。控制器还被配置为响应于第一整形级别超过阈值，执行第二整形操作以生成对应于数据的成形数据，成形数据具有小于阈值的第二整形级别。

4. 发明授权

US09865360B2 Burn-in memory testing 有权
公开(公告)号：US09865360B2
公开(公告)日：2018-01-09
申请号：US14920696
申请日：2015-10-22
申请人： SANDISK TECHNOLOGIES INC.
发明人： Eran Sharon , Alexander Bazarsky , Ariel Navon , Alon Eyal , Idan Alrod , Ofer Shapira
IPC分类号： G11C29/00 , G11C29/38 , G11C29/44
CPC分类号： G11C29/38 , G11C29/06 , G11C29/44
摘要： A method performed by a controller includes initiating a first data write operation and an erase operation on a portion of a non-volatile memory. The first data write operation corresponds to a first write resolution. The method includes initiating a second data write operation to write test data to the portion of the non-volatile memory. The second data write operation corresponds to a second write resolution that is greater than the first write resolution. The method also includes reading a representation of the test data from the portion of the non-volatile memory.

5. 发明申请

US20150169420A1 Systems and Methods for Performing Data Recovery in a Memory System 有权
标题翻译：在内存系统中执行数据恢复的系统和方法
公开(公告)号：US20150169420A1
公开(公告)日：2015-06-18
申请号：US14105953
申请日：2013-12-13
申请人： SanDisk Technologies Inc.
发明人： Ofer Shapira , Eran Sharon , Idan Alord , Opher Lieber
IPC分类号： G06F11/20 , G06F12/08 , G06F12/02
CPC分类号： G06F11/1068 , G06F11/1008 , G06F11/1044 , G06F11/1048 , G06F11/106 , G06F12/0891 , G06F12/1045 , G11C29/52
摘要： Systems and methods for performing defect detection and data recovery within a memory system are disclosed. A controller of a memory system writes data to a physical location of a memory and stores the physical location of the memory in a Flash Management Unit Tag cache (“Tag cache”). The controller identifies a data keep cache that is associated with the physical location of memory and updates an XOR sum stored in the identified data keep cache. The controller determines whether to perform a verification operation, and in response to a determination to perform the verification operation, verifies data stored at each physical location that has been stored in the Tag cache since a previous verification operation. Additionally, the controller determines whether to perform a reset operation, and in response to a determination to perform the reset operation, flushes the Tag cache and the plurality of data keep caches.
摘要翻译：公开了用于在存储器系统内执行缺陷检测和数据恢复的系统和方法。存储器系统的控制器将数据写入存储器的物理位置，并将存储器的物理位置存储在闪存管理单元标签高速缓存（“Tag cache”）中。控制器识别与存储器的物理位置相关联的数据保持高速缓存，并更新存储在所识别的数据保持高速缓存中的XOR和。控制器确定是否执行验证操作，并且响应于执行验证操作的确定，验证存储在已经存储在标签高速缓存中的每个物理位置的数据，因为之前的验证操作。此外，控制器确定是否执行复位操作，并且响应于执行复位操作的确定，刷新标签缓存并且多个数据保持高速缓存。

6. 发明授权

US09514837B2 Selective online burn-in with adaptive and delayed verification methods for memory 有权
标题翻译：选择性在线老化与自适应和延迟验证方法的内存
公开(公告)号：US09514837B2
公开(公告)日：2016-12-06
申请号：US14600342
申请日：2015-01-20
申请人： SanDisk Technologies Inc.
发明人： Ofer Shapira , Eran Sharon , Idan Alrod
IPC分类号： G11C29/04 , G11C29/00 , G11C16/34 , G11C16/14 , G11C11/56 , G06F11/10 , G06F11/07
CPC分类号： G11C16/3459 , G06F11/073 , G06F11/0751 , G06F11/079 , G06F11/1068 , G06F11/108 , G11C11/5628 , G11C16/14 , G11C29/04 , G11C29/06 , G11C29/08 , G11C29/44 , G11C29/4401 , G11C29/883
摘要： A memory is released for use without pre-verification of its memory blocks as being defect free. Some memory blocks are subjected to a verification process when the computer memory is in use in order to verify a minimum number of memory blocks required for high performance program operation as being defect free. The verification process continues as the computer memory is in use in order to maintain the minimum number of memory blocks required for high performance operation in the verified defect free state. A verification mode of either no verification, delayed verification, or immediate verification is applied to memory blocks used for regular performance program operation. Delayed verification is maintained until an ability to recover the stored data is going to be lost. Immediate verification can be performed using bit error rate analysis. Some verification processes are performed using aggressive programming trim and/or multiple word line sensing for faster programming.
摘要翻译：内存被释放使用，而不会将其内存块预先验证为无缺陷。当使用计算机存储器时，为了将高性能程序操作所需的最少数量的存储器块验证为无缺陷，一些存储器块经受验证过程。随着计算机存储器正在使用，验证过程继续进行，以便在验证的无缺陷状态下保持高性能操作所需的最小数量的存储器块。无需验证，延迟验证或立即验证的验证模式适用于用于常规性能程序操作的内存块。维持延迟验证，直到恢复存储的数据的能力将丢失。可以使用误码率分析进行立即验证。使用积极的编程修剪和/或多个字线检测来执行一些验证过程，以实现更快的编程。

7. 发明授权

US09239756B2 Systems and methods for performing data recovery in a memory system 有权
标题翻译：用于在存储器系统中执行数据恢复的系统和方法
公开(公告)号：US09239756B2
公开(公告)日：2016-01-19
申请号：US14105953
申请日：2013-12-13
申请人： SanDisk Technologies Inc.
发明人： Ofer Shapira , Eran Sharon , Idan Alord , Opher Lieber
IPC分类号： G06F11/00 , G06F11/10 , G06F12/10 , G06F12/08 , G11C29/52
CPC分类号： G06F11/1068 , G06F11/1008 , G06F11/1044 , G06F11/1048 , G06F11/106 , G06F12/0891 , G06F12/1045 , G11C29/52
摘要： Systems and methods for performing defect detection and data recovery within a memory system are disclosed. A controller of a memory system writes data to a physical location of a memory and stores the physical location of the memory in a Flash Management Unit Tag cache (“Tag cache”). The controller identifies a data keep cache that is associated with the physical location of memory and updates an XOR sum stored in the identified data keep cache. The controller determines whether to perform a verification operation, and in response to a determination to perform the verification operation, verifies data stored at each physical location that has been stored in the Tag cache since a previous verification operation. Additionally, the controller determines whether to perform a reset operation, and in response to a determination to perform the reset operation, flushes the Tag cache and the plurality of data keep caches.
摘要翻译：公开了用于在存储器系统内执行缺陷检测和数据恢复的系统和方法。存储器系统的控制器将数据写入存储器的物理位置，并将存储器的物理位置存储在闪存管理单元标签高速缓存（“Tag cache”）中。控制器识别与存储器的物理位置相关联的数据保持高速缓存，并更新存储在所识别的数据保持高速缓存中的XOR和。控制器确定是否执行验证操作，并且响应于执行验证操作的确定，验证存储在已经存储在标签高速缓存中的每个物理位置的数据，因为之前的验证操作。此外，控制器确定是否执行复位操作，并且响应于执行复位操作的确定，刷新标签缓存并且多个数据保持高速缓存。

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