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Formation of antifuse structure in a three dimensional memory

  • US 6,541,312 B2
  • Filed: 12/22/2000
  • Issued: 04/01/2003
  • Est. Priority Date: 12/22/2000
  • Status: Expired due to Term
First Claim
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1. A method of forming a memory comprising:

  • forming a first plurality of spaced apart rail-stacks having a top semiconductor film;

    forming a dielectric film having a top surface between said plurality of first rail-stacks;

    etching said semiconductor film of said first plurality of spaced apart rail-stacks so that said semiconductor film is recessed below said top surface of said dielectric film;

    forming an antifuse material on said etched semiconductor film of said first plurality of spaced apart rail-stacks; and

    forming a second plurality of spaced apart rail-stacks on said antifuse material, said second plurality of spaced apart rail-stacks having a lower semiconductor film on said antifuse material.

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