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Variable current sinking for coarse/fine programming of non-volatile memory

  • US 7,002,843 B2
  • Filed: 01/27/2004
  • Issued: 02/21/2006
  • Est. Priority Date: 01/27/2004
  • Status: Expired due to Fees
First Claim
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1. An apparatus for programming, comprising:

  • a non-volatile storage element having a gate and two control terminals; and

    a switchable current sinking device in communication with one of said control terminals, said switchable current sinking device provides a coarse current sink to said one of said control terminals if said non-volatile storage element is in a coarse programming mode and provides a fine current sink to said one of said control terminals if said non-volatile storage element is in a fine programming mode, said switchable current sinking device includes a first current sink unit that provides said coarse current sink, a second current sink unit that provides said fine current sink, and a switch for selecting either said first current sink unit or said second current sink unit.

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