Patent ID: 7525181

Claim:
A tape wiring substrate for use in a chip package, the tape substrate including: a base film having a chip mounting area dedicated to receive a chip of the chip package; and base wiring extending along a surface of the base film, the base wiring including a plurality of input and/or output (input/output) wiring patterns for use in transmitting input and/or output signals to and/or from a chip when the chip is mounted on the chip mounting area of the base film, each of the input and/or output wiring patterns having a group of leads, the leads being spaced from one another at a regular pitch in each group, and the leads having first ends, respectively, disposed alongside the chip mounting area, dispersion wiring having at least one respective lead interposed between the groups of leads of an adjacent pair of the input/output wiring patterns, and connecting wiring connecting each said at least one respective lead of the dispersion wiring to a lead of one of the groups of leads of an adjacent pair of the input/output wiring patterns.