Stacked memory with redundancy
US-2015357002-A1 · Dec 10, 2015 · US
Performance of a system having non-volatile memory
US8990614B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990614-B2 |
| Application number | US-201313829692-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2013 |
| Priority date | Mar 14, 2013 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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Systems and methods are disclosed for improving performance of a system having non-volatile memory (“NVM”). The system can vertically re-vector defective blocks of a user region of the NVM to other blocks having the same plane or die's plane (“DIP”) but corresponding to a dead region of the NVM. Then, the system can select any band with more than one defective block and vertically re-vector one of its defective blocks to a band that has no defective blocks. At run-time, the system can monitor the number of vertical re-vectors per DIP. If at least one vertical re-vector has been performed on all DIPs of the NVM, a band of the user region can be allocated for the dead region.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for achieving consistent performance in a non-volatile memory (“NVM”) comprising a plurality of die's planes (“DIPs”), the method comprising: counting a number of defective blocks corresponding to each DIP of the plurality of DIPs; obtaining a minimum number of defective blocks for the plurality of DIPs; assigning a number of bands of the NVM as dead bands, wherein the number of bands equals the minimum number of defective blocks; and coalesci…
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- G11C29/808Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06F11/1666Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8990614B2 cover?
- Systems and methods are disclosed for improving performance of a system having non-volatile memory (“NVM”). The system can vertically re-vector defective blocks of a user region of the NVM to other blocks having the same plane or die's plane (“DIP”) but corresponding to a dead region of the NVM. Then, the system can select any band with more than one defective block and vertically re-vector one…
- Who is the assignee on this patent?
- Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification G11C29/808. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).