Patent ID: 7939923
Filing Date: 2011-05-10
Classification: G06K,H01L

Abstract:
1. A memory card comprising: a circuit board; a first semiconductor chip mounted on a principal face of the circuit board with a bump sandwiched between the first semiconductor chip and the circuit board; a second semiconductor chip mounted on the principal face of the circuit board with a bump sandwiched between the second semiconductor chip and the circuit board and with a clearance not greater than 1 mm between the first semiconductor chip and the second semiconductor chip; a first sealing resin layer for surrounding the bump bonded to the first semiconductor chip and existing between the first semiconductor chip and the circuit board; a second sealing resin layer for surrounding the bump bonded to the second semiconductor chip and existing between the second semiconductor chip and the circuit board; and a cover disposed over the principal face of the circuit board for covering the first semiconductor chip and the second semiconductor chip disposed on the principal face of the circuit board, wherein the circuit board includes one of a linear protrusion and a linear recess extending on the principal face of the circuit board and between the first semiconductor chip and the second semiconductor chip.