Smart label and manufacturing method thereof

• US 20050023360A1
• Filed: 08/02/2004
• Published: 02/03/2005
• Est. Priority Date: 08/01/2003
• Status: Active Grant

• Current Assignee: Samsung Techwin Corporation (Hanwha Corporation)
• Original Assignee: Samsung Techwin Corporation (Hanwha Corporation)
• Inventors: Cho, Se-hoon
• Granted Patent: US 7,070,114 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card

Abstract

A smart label includes an antenna formed with a narrow film or panel-like material rolled in a roll, the film having one face of conductive layer and an opposite face of nonconductive layer, and a semiconductor chip attached to a side surface of the rolled antenna, the semiconductor chip having a first connection terminal connected to the conductive layer at a location adjacent to an outermost winding of the antenna and a second connection terminal connected to the conductive layer at a location adjacent to an innermost winding of the antenna.

Claims

1. A smart label comprising:

an antenna formed of a film rolled in a roll, the film having a dielectric first surface and a conductive second surface; and

an electronic chip having a first connection terminal connected to a conductive portion of the film at an outermost winding of the antenna and a second connection terminal connected to a conductive portion of the film at an innermost winding of the antenna.

2. The smart label as claimed in claim 1, wherein an indentation is formed in a side surface of the antenna to accommodate the electronic chip.

3. The smart label as claimed in claim 1, wherein the first and second connection terminals of the electronic chip are connected to the conductive portions of the film via a conductive paste.

4. The smart label as claimed in claim 2, wherein a surface of the electronic chip is attached to the indentation of the antenna by an insulating paste and an opposite surface of the electronic chip is covered by a protection sheet.

5. The smart label as claimed in claim 1 further comprising a core disposed within a central cavity of the antenna.

6. The smart label as claimed in claim 5, wherein the core is made of a dielectric material.

7. The smart label as claimed in claim 5, wherein the core is made of a conductive material.

8. The smart label as claimed in claim 1, wherein the antenna is formed in a circular shape.

9. The smart label as claimed in claim 1, wherein the antenna is formed in an oval or substantially rectangular shape.

10. The smart label as claimed in claim 1, wherein the antenna has a thickness less than about 2 mm.

11. A method of manufacturing a smart label comprising:

providing an antenna precursor by rolling a film, the film having a conductive layer at least partially disposed thereon;

cutting the antenna precursor into slices to form an antenna; and

connecting first and second connection terminals of an electronic chip to the conductive layer of the film at an outermost winding of the antenna and an innermost winding of the antenna, respectively.

12. The method as claimed in claim 11 further comprising the step of forming an indentation in a side surface of the antenna, and wherein the electronic chip is at least partially received in the indentation.

13. The method as claimed in claim 11, further comprising the step of providing the film of the antenna precursor by laminating the conductive layer on the film and separating the conductive layer in a lengthwise direction.

14. The method as claimed in claim 11, wherein the step of providing the antenna precursor is performed by rolling the film around a core member.