Patent ID: 6591494
Filing Date: 2003-07-15
Classification: G06K,H01L,Y10T

Abstract:
A method for manufacturing a non-contact type IC card, said method comprising the following steps of: forming a plane coil by punching or etching a thin metal plate in such a manner that a conductor line is wound several times on substantially the same surface, said plane coil having respective terminals at innermost and outermost ends, and adjacent loops of conductor line are connected to each other at predetermined positions by connecting pieces; filling spaces between adjacent loops of conductor of the plane coil are filled with a resin to maintain predetermined intervals between said adjacent loops of conductor of the plane coil; and removing said connecting pieces from the plane coil; wherein said spaces between adjacent conductor lines are filled with resin so as not to protrude from upper and lower surfaces, respectively, of the plane coil.