Encoded microparticles and a method for fabricating
First Claim
Patent Images
1. A method for fabricating microparticles comprising:
- providing a base substrate including a particle layer thereon, the particle layer having a photosensitive material;
providing optically detectable codes in the photosensitive material of the particle layer; and
etching lines into the particle layer to create a plurality of microparticles, the microparticles having inner and outer regions, each inner region being surrounded by a corresponding outer region formed from the particle layer and including at least one of the optically detectable codes therein, the microparticles having elongated bodies that extend in an axial direction, the optically detectable codes extending in the axial direction within the microparticles.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for fabricating microparticles. The method includes providing a removable substrate that has a photosensitive material. The substrate has a plurality of inner regions. Each inner region surrounds a corresponding outer region. The method also includes providing at least one optically detectable code within at least one of the inner regions of the substrate and etching lines into the substrate to create a plurality of microparticles having at least one optically detectable code therein. The microparticles have elongated bodies that extend in an axial direction. The optically detectable codes extend in the axial direction within the microparticles.
441 Citations
40 Claims
-
1. A method for fabricating microparticles comprising:
-
providing a base substrate including a particle layer thereon, the particle layer having a photosensitive material; providing optically detectable codes in the photosensitive material of the particle layer; and etching lines into the particle layer to create a plurality of microparticles, the microparticles having inner and outer regions, each inner region being surrounded by a corresponding outer region formed from the particle layer and including at least one of the optically detectable codes therein, the microparticles having elongated bodies that extend in an axial direction, the optically detectable codes extending in the axial direction within the microparticles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method for fabricating microparticles comprising:
-
providing a removable base substrate including a particle layer thereon, the particle layer having a photosensitive material, the particle layer including optically detectable codes embedded in predetermined regions of the particle layer; and etching lines into the particle layer to create a plurality of microparticles, the predetermined regions becoming inner regions of the microparticles when the particle layer is etched, the inner regions having at least one of the optically detectable codes therein, the microparticles also having outer regions formed from the particle layer that surround the inner regions, the microparticles having elongated bodies that extend in an axial direction, the optically detectable codes extending in the axial direction within the microparticles. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
Specification