公开(公告)号：US20150179265A1

公开(公告)日：2015-06-25

申请号：US14135881

申请日：2013-12-20

Applicant: Apple Inc.

Inventor： Moti Teitel ,  Maya Barkon ,  Micha Anholt ,  Naftali Sommer

IPC: G11C16/10

CPC classification number: G11C11/5628 ,  G11C7/1006 ,  G11C11/56 ,  G11C11/5642 ,  G11C11/5671 ,  G11C16/08 ,  G11C16/10 ,  G11C16/107 ,  G11C16/26 ,  G11C16/3427

Abstract: A method for data storage includes, in a first programming phase, storing first data in a group of memory cells by programming the memory cells in the group to a set of initial programming levels. In a subsequent second programming phase, second data is stored in the group by identifying the memory cells in the group that were programmed in the first programming phase to respective levels in a predefined partial subset of the initial programming levels, and programming only the identified memory cells with the second data, so as to set at least some of the identified memory cells to one or more additional programming levels that are different from the initial programming levels. The memory cells to which the second data was programmed are recognized by reading only a partial subset of the first data. The second data is read from the recognized memory cells.

Abstract translation: 一种用于数据存储的方法包括在第一编程阶段中通过将组中的存储器单元编程为一组初始编程级别来将第一数据存储在一组存储器单元中。 在随后的第二编程阶段，通过将在第一编程阶段中编程的组中的存储器单元识别为初始编程级的预定义部分子集中的相应级别，并且仅编程所识别的存储器，将第二数据存储在组中 具有第二数据的单元，以便将所识别的存储器单元中的至少一些设置为与初始编程电平不同的一个或多个附加编程电平。 通过仅读取第一数据的部分子集来识别第二数据被编程到的存储器单元。 从识别的存储器单元读取第二数据。

公开(公告)号：US08830746B2

公开(公告)日：2014-09-09

申请号：US13905580

申请日：2013-05-30

Applicant: Apple Inc.

Inventor： Maya Barkon ,  Meir Dalal ,  Moti Teitel ,  Micha Anholt

IPC: G11C11/34 ,  G11C16/34 ,  G11C27/00 ,  G11C29/02 ,  G11C11/56

CPC classification number: G11C27/00 ,  G11C11/5642 ,  G11C16/3418 ,  G11C29/021 ,  G11C29/028

Abstract: A method includes reading a group of analog memory cells using first explicit read thresholds, to produce first readout results. The group is re-read using second explicit read thresholds, to produce second readout results. The group is read using one or more sets of auxiliary thresholds so as to produce auxiliary readout results, such that the number of the auxiliary thresholds in each set is the same as the number of the first explicit read thresholds and the same as the number of the second explicit read thresholds. A readout performance of third read thresholds, which include at least one of the first explicit read thresholds and at least one of the second explicit read thresholds, is evaluated using the first, second and auxiliary readout results.

Abstract translation: 一种方法包括使用第一显式读取阈值读取一组模拟存储器单元，以产生第一读出结果。 使用第二显式读取阈值重新读取该组，以产生第二读取结果。 使用一组或多组辅助阈值读取组，以产生辅助读出结果，使得每组中的辅助阈值的数量与第一显式读取阈值的数量相同，并且与第 第二个显式读取阈值。 使用第一，第二和辅助读出结果评估包括第一显式读取阈值和至少一个第二显式读取阈值中的至少一个的第三读取阈值的读出性能。

公开(公告)号：US09230655B2

公开(公告)日：2016-01-05

申请号：US14135881

申请日：2013-12-20

Applicant: Apple Inc.

Inventor： Moti Teitel ,  Maya Barkon ,  Micha Anholt ,  Naftali Sommer

IPC: G11C16/04 ,  G11C16/08 ,  G11C16/26 ,  G11C7/10 ,  G11C11/56 ,  G11C16/34 ,  G11C16/10

CPC classification number: G11C11/5628 ,  G11C7/1006 ,  G11C11/56 ,  G11C11/5642 ,  G11C11/5671 ,  G11C16/08 ,  G11C16/10 ,  G11C16/107 ,  G11C16/26 ,  G11C16/3427

Abstract: A method for data storage includes, in a first programming phase, storing first data in a group of memory cells by programming the memory cells in the group to a set of initial programming levels. In a subsequent second programming phase, second data is stored in the group by identifying the memory cells in the group that were programmed in the first programming phase to respective levels in a predefined partial subset of the initial programming levels, and programming only the identified memory cells with the second data, so as to set at least some of the identified memory cells to one or more additional programming levels that are different from the initial programming levels. The memory cells to which the second data was programmed are recognized by reading only a partial subset of the first data. The second data is read from the recognized memory cells.

Abstract translation: 一种用于数据存储的方法包括在第一编程阶段中通过将组中的存储器单元编程为一组初始编程级别来将第一数据存储在一组存储器单元中。 在随后的第二编程阶段，通过将在第一编程阶段中编程的组中的存储器单元识别为初始编程级的预定义部分子集中的相应级别，并且仅编程所识别的存储器，将第二数据存储在组中 具有第二数据的单元，以便将所识别的存储器单元中的至少一些设置为与初始编程电平不同的一个或多个附加编程电平。 通过仅读取第一数据的部分子集来识别第二数据被编程到的存储器单元。 从识别的存储器单元读取第二数据。

公开(公告)号：US20130258738A1

公开(公告)日：2013-10-03

申请号：US13905580

申请日：2013-05-30

Applicant: Apple Inc.

Inventor： Maya Barkon ,  Meir Dalal ,  Moti Teitel ,  Micha Anholt

IPC: G11C27/00

CPC classification number: G11C27/00 ,  G11C11/5642 ,  G11C16/3418 ,  G11C29/021 ,  G11C29/028

Abstract: A method includes reading a group of analog memory cells using first explicit read thresholds, to produce first readout results. The group is re-read using second explicit read thresholds, to produce second readout results. The group is read using one or more sets of auxiliary thresholds so as to produce auxiliary readout results, such that the number of the auxiliary thresholds in each set is the same as the number of the first explicit read thresholds and the same as the number of the second explicit read thresholds. A readout performance of third read thresholds, which include at least one of the first explicit read thresholds and at least one of the second explicit read thresholds, is evaluated using the first, second and auxiliary readout results.

Abstract translation: 一种方法包括使用第一显式读取阈值读取一组模拟存储器单元，以产生第一读出结果。 使用第二显式读取阈值重新读取该组，以产生第二读取结果。 使用一组或多组辅助阈值读取组，以产生辅助读出结果，使得每组中的辅助阈值的数量与第一显式读取阈值的数量相同，并且与第 第二个显式读取阈值。 使用第一，第二和辅助读出结果评估包括第一显式读取阈值和至少一个第二显式读取阈值中的至少一个的第三读取阈值的读出性能。