Patent ID: 6422473
Filing Date: 2002-07-23
Classification: G06K,H01L

Abstract:
A circuit chip module forming a card with a circuit including an antenna for communication utilizing an electromagnetic wave and a processing portion performing a process for communication, comprising:a first circuit chip including at least a portion of the processing portion and having a first terminal; and a second circuit chip including the antenna and a remaining portion of the processing portion and having a second terminal, and characterized in that said first circuit chip and said second circuit chip are stacked in a direction of thickness of the card to electrically connect said first terminal with said second terminal, wherein said first circuit chip and said second circuit chip as stacked are free from external electrical connections in regions outside thereof, and further characterized in that a desired resonance frequency is obtained by selectively disconnecting an interconnection for a plurality of capacitors preliminary provided in said first and second circuit chips.