Patent ID: 6076737
Filing Date: 2000-06-20
Classification: G06K,H01L

Abstract:
An IC card comprising:an IC module comprising a rectangular substrate, a rectangular contact layer formed on an opposed surface of the substrate, an IC chip mounted on another surface of the substrate, and a frame attached to the another surface of the substrate so that the frame and substrate in combination completely surround the IC chip; anda base card holding the IC module;wherein the contact layer is formed in a shape smaller than that of the substrate to form an outer isolation region in which a portion of the surface of the substrate is exposed,the contact layer is divided into a plurality of sections by inner isolation regions, and sections of the outer isolation regions have a width greater than that of the inner isolation regions, andthe sections of the outer isolation regions consist of a first pair of sections parallel to each other and a second pair of sections parallel to each other, the first pair of sections having a width greater than that of the second pair of sections.