Patent ID: 7087844
Filing Date: 2006-08-08
Classification: H01L,H05K,Y02P

Abstract:
1. A wiring circuit board for mounting a bare chip of an integrated circuit by directly connecting electrodes of the bare chip to the wiring circuit, which is characterized in that the bare chip to be mounted comprises plural electrodes formed on a connection surface thereof in an alternate arrangement pattern following zigzag peaks, the outer shape of the individual electrodes is a quadrate shape of about 15 μm–100 μm for one side; the wiring circuit board comprises a strip conductor formed in exposure and extending in a direction about perpendicular to an advancing direction of said zigzag, in a stripe pattern, so that an individual conductor can be directly connected to each electrode of the bare chip; each strip conductor forms an end at a position corresponding to each electrode, thus the ends of the stripe pattern being formed by alternately arranged long ends and short ends; and the strip conductor having a long end part comprises the following part (A) having a smaller width than the width of parts adjacent to both ends of the part (A):