Patent ID: 7400515
Filing Date: 2008-07-15
Classification: B41J,H05K

Abstract:
1. A circuit board electrode connection structure comprising: a plurality of circuit boards; one or more electrodes formed in or on at least one of the circuit boards; and one or more electrode connection regions present at at least one of the circuit boards; wherein at least a portion of the circuit boards are directly connected with each other at the one or more electrode connection regions by one or more adhesives intervening therebetween or thereamong; wherein at least one thickness of at least one of the adhesives between or among at least two of the plurality of circuit boards in at least one of the electrode connection regions is less than at least one thickness of at least one of the electrodes; and wherein: at least one of the circuit boards comprises: at least one of the electrodes protrudes from the at least one first board substrate, and at least one of the electrodes is formed in or on at least one floor of the at least one recess; at least one step is formed in at least one depth dimension from at least one surface of the at least one electrode of the at least one second circuit board, to at least one surface of the at least one second board substrate; at least one magnitude of the at least one step is smaller than at least one thickness of the at least one electrode protruding from the at least one first board substrate; and at least one thickness of at least one of the adhesives is substantially equal to at least one difference between at least one of the thicknesses of at least one of the electrodes protruding from at least one of the first board substrates of at least one of the first circuit boards and at least one of the magnitudes of at least one of the steps in at least one of the recesses in at least one of the second circuit boards.