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Three-dimensional one-time-programmable memory comprising off-die read/write-voltage generator

  • US 9,508,395 B2
  • Filed: 03/06/2016
  • Issued: 11/29/2016
  • Est. Priority Date: 09/01/2011
  • Status: Active Grant
First Claim
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1. A discrete three-dimensional one-time-programmable memory (3D-OTP), comprising:

  • a 3D-array die comprising at least a 3D-OTP array, wherein said 3D-OTP array comprises a plurality of vertically stacked 3D-OTP cells;

    a peripheral-circuit die comprising at least an off-die VR/VW-generator of said 3D-OTP array, wherein said off-die VR/VW-generator generates at least a read voltage and/or a write voltage different from a supply voltage;

    means for coupling said 3D-array die and said peripheral-circuit die;

    wherein the number of back-end-of-line (BEOL) levels in said 3D-array die is at least twice as much as the number of interconnect levels in said peripheral-circuit die;

    said off-die VR/VW-generator is absent from said 3D-array die; and

    , said 3D-array die and said peripheral-circuit die are separate dice.

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