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SEMICONDUCTOR MEMORY DEVICE

  • US 20110202812A1
  • Filed: 09/23/2010
  • Published: 08/18/2011
  • Est. Priority Date: 02/12/2010
  • Status: Active Grant
First Claim
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1. A semiconductor memory device comprising a plurality of semiconductor memory chips in which data requested to be written by an information processing apparatus is written, the data having one or more pieces of first data in a predetermined unit,the device includes:

  • a write controller configured to write the pieces of the first data in the predetermined unit and redundancy information into different semiconductor memory chips, the redundancy information being calculated by using a predetermined number of pieces of the first data and being used for correcting an error in the predetermined number of pieces of the first data; and

    a storage unit configured to store therein identification information and region specifying information so as to be associated with each other, the identification information associating the predetermined number of pieces of the first data and the redundancy information, and the region specifying information specifying a plurality of storage regions in the semiconductor memory chips to which the pieces of the first data and the redundancy information associated with each other are written.

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