US 6,441,736 B1 · Ultra-thin flexible durable radio frequency identification devices and hot or cold lamination process for the manufacture of ultra-thin flexible durable radio frequency identification devices

Abstract

A ultra-thin flexible durable radio frequency plastic of other substrate identification device, such as cards, tags, badges, bracelets and labels including at least one electronic element embedded therein and a hot or cold lamination process for the manufacture of radio frequency identification devices including a micro IC chip embedded therein. The process results in a device having an overall thickness in the range of 0.005 inches to 0.033 inches with a surface suitable for receiving dye sublimation printing—the variation in the device thickness across the surface is less than 0.0005 inches. The hot lamination process of the present invention results in an aesthetically pleasing device which can be used as a sticker when adhesive is applied to the device. The invention also relates to a plastic device in all shapes and sizes formed in accordance with the hot lamination process of the present invention and can withstand harsh chemicals and various pressures.

Claims18

Dependent claims

A process for incorporating at least one electronic element in the manufacture of a plastic device comprising the steps of:

(a) providing first and second plastic core sheets;
(b) positioning said at least one electronic element in the absence of a non-electronic carrier directly between said first and second plastic core sheets to form a core, said plastic core sheets defining a pair of inner and outer surfaces of said core;
(c) positioning said core in a laminator apparatus, and subjecting said core to a heat and pressure cycle, said heat and pressure cycle comprising the steps of:
(I) heating said core to a first period of time;
(II) applying a first pressure to said core for a second prior of time such that said at least one electronic element is encapsulated by said core;
(III) cooling said core while applying a second pressure to said core;
(d) coating at least one of said outer surfaces of said core with a layer of ink;
and
(e) applying a layer of overlaminate film to at least one outer surface of said core.

6 more elements

Dependencies are inferred from the claim text.

Ultra-thin flexible durable radio frequency identification devices and hot or cold lamination process for the manufacture of ultra-thin flexible durable radio frequency identification devices

Life of this patent

Ultra-thin flexible durable radio frequency identification devices and hot or cold lamination process for the manufacture of ultra-thin flexible durable radio frequency identification devices

Life of this patent

Abstract

Claims18