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MULTI-LAYER MEMORY SYSTEM

  • US 20120254574A1
  • Filed: 03/31/2011
  • Published: 10/04/2012
  • Est. Priority Date: 03/31/2011
  • Status: Active Grant
First Claim
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1. A mass storage memory system, comprising:

  • an interface adapted to receive data from a host system;

    a plurality of memory layers, the plurality of memory layers comprising;

    a first memory layer having non-volatile memory cells comprising a first bit per cell storage capacity;

    a second memory layer having non-volatile memory cells comprising a second bit per cell storage capacity, the second bit per cell storage capacity being greater than the first bit per cell storage capacity; and

    a third memory layer having non-volatile memory cells comprising a third bit per cell storage capacity, the third bit per cell storage capacity being greater than the second bit per cell storage capacity;

    anda controller in communication with the interface and the plurality of memory layers, the controller configured to direct data received from the host to one or more of the plurality of layers, and to transfer data between the plurality of memory layers.

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