Rearranging write data to avoid hard errors

Patent metadata

Field	Value
Publication number	US-8977929-B2
Application number	US-201313779381-A
Country	US
Kind code	B2
Filing date	Feb 27, 2013
Priority date	Feb 27, 2013
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

This disclosure relates to avoiding a hard error in memory during write time by shifting data to be programmed to memory to mask the hard error. In one implementation, a method of programming data to a memory array includes obtaining error data corresponding to a selected memory cell, shifting a data pattern such that a value to be stored by the selected memory cell matches a value associated with a hard error, and programming the shifted data pattern to memory array such that the value programmed to the selected memory cell matches the value associated with the hard error.

First claim

We claim:

1. A method of programming data to a memory array, the method comprising:
determining a hard error corresponding to a selected memory cell of the memory array and a value associated with the hard error;
shifting a data pattern to be programmed to generate a shifted data pattern such that a value to be stored by the selected memory cell matches the value associated with the hard error; and
programming the shifted data pattern to the memory array, wherein the value wri…

Assignees

• Micron Technology Inc

Inventors

• Thiruvengadam Aswin
• Visconti Angelo
• Bonanomi Mauro
• Fackenthal Richard E
• Melton William

Classifications

• G11C16/10

  Physics · mapped topic

• G11C7/1012

  Physics · mapped topic

• G06F3/0619

  Physics · mapped topic

• G11C7/1006 Primary

  Physics · mapped topic

• G11C13/0004

  Physics · mapped topic