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US 2018/0025186 A1Published application
Labeling and authenticating using a microtag
AssigneeTruTag Technologies, Inc.
InventorsTimothy Learmonth, Ting Zhou
Life of this patent
Estimating the term…
Abstract
An identifier made using a silicon film fragment. The silicon film has a varying optical index of refraction. The varying optical index of refraction reflects one or more spectral peaks when illuminated with light. The one or more spectral peaks includes a reference peak. The silicon film is fragmented to generate the silicon film fragment.
Claims15
An identifier, comprising:
- a silicon film fragment;
- wherein a silicon film has a varying optical index of refraction;
- wherein the varying optical index of refraction reflects one or more spectral peaks when illuminated with light;
- wherein the one or more spectral peaks includes a reference peak;
- and
- wherein the silicon film is fragmented to generate the silicon film fragment.
3 more elements
Dependencies are inferred from the claim text.