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High capacity digital data storage by transmission of radiant energy through arrays of small diameter holes

  • US 20020126616A1
  • Filed: 10/19/2001
  • Published: 09/12/2002
  • Est. Priority Date: 10/20/2000
  • Status: Active Grant
First Claim
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15. A method for making a storage media having data stored thereon, the method comprising:

  • forming a first layer, the first layer being substantially transparent to a predetermined first radiant energy used for reading the data;

    forming a second layer on the first layer which is substantially opaque to the first radiant energy; and

    forming a pattern comprising a plurality of holes in the second layer, each of the holes having a largest dimension which is greater than a wavelength of the first radiant energy, the data being stored as the presence or absence of a hole in the pattern.

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