Patent ID: 7837301

Claim:
A printed board comprising: an insulating film; a plurality of terminal lands forming a plurality of columns and arranged adjacent to each other at one end portion of one surface of the insulating film; a plurality of printed wires arranged on one surface of the insulating film, wherein each of the plurality of printed wires is connected to at least one of the plurality of terminal lands, wherein the plurality of printed wires comprises: a first plurality of printed wires arranged extending to the corresponding terminal lands in a direction intersecting an extending direction of the terminal land columns formed by the plurality of terminal lands and the first plurality of printed wires pass between the plurality of terminal lands; and a second plurality of printed wires arranged extending in a direction intersecting the extending direction on an outer side of the plurality of terminal land columns; and a ground printed wire arranged on the one surface of the insulating film, wherein the ground printed wire is positioned on the outer side of the plurality of printed wires at three peripheral sides of the end portion of the insulating film and the ground printed wire connects with at least one solder bump through at least one through hole formed in the insulating film at each of the three peripheral sides of the ground printed wire, wherein the first plurality of printed wires at least are connected to each of the terminal lands arranged in a first plurality of columns of the plurality of terminal lands and the second plurality of printed wires at least are connected to each of the terminal lands arranged in at least one second column of the plurality of terminal lands, wherein the first plurality of columns are positioned farther from an edge of the insulating film at the one end portion side than the at least one second column is positioned from the edge of the insulating film at the one end portion side.