Resonant tag and method of manufacturing the same

Details Resonant tag and method of manufacturing the same Resonant tag and method of manufacturing the same

1990-12-27

1992-04-28

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428457, 428461, 428515, 428901, 295921, 29848, 343895, 340572, B32B 900

Patent

active

051088223

ABSTRACT:
A resonant tag is manufactured in the manner described below: a conductive thin film is formed to a predetermined thickness on two surfaces of an insulating thin film. Thereafter, a conductive pattern, composed of an inductor element and a capacitor element corresponding to a resonant frequency of a resonant circuit, is printed on a surface of one of the conductive thin films, and a conductive pattern, composed of a capacitor element corresponding to the resonant frequency of the resonant circuit, is printed on a surface of the other insulating thin film at a position which faces the capacitor element formed on one of the conductive thin films using an ink which resists etching. A non-printed portion of the conductive thin films is removed by etching to form a resonant circuit pattern. Thereafter, a portion of the insulating thin film, which corresonds to the capacitor element pattern, is thinned to a desired thickness by pressing a heating/pressing member heated to a predetermined temperature against that portion under a predetermined pressure for a predetermined period of time.

REFERENCES:
patent: 3913219 (1975-10-01), Lichtblau
patent: 3967161 (1976-06-01), Lichtblau
patent: 4369557 (1983-01-01), Vandebult
patent: 4583099 (1986-04-01), Reilly et al.
patent: 4689636 (1987-08-01), Tait et al.

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