Patent ID: 8319345

Claim:
A semiconductor device comprising: a semiconductor integrated circuit; and a semiconductor packaging substrate connected with the semiconductor integrated circuit, the semiconductor packaging substrate including: a plurality of pads arranged in a square grid pattern; among the plural pads, a first pad which outputs a signal from the semiconductor integrated circuit; among the plural pads, a second pad disposed adjacent to the first pad obliquely in the square grid arrangement, which inputs a signal to the semiconductor integrated circuit; among the plural pads, a third pad and a fourth pad which are adjacent to both the first pad and the second pad and are grounded or have a constant voltage; a first through-hole connected with the first pad; a second through-hole connected with the second pad; a third through-hole connected with the third pad; a fourth through-hole connected with the fourth pad; and a fifth through-hole which is provided between the first through-hole and the second through-hole and grounded or has a constant voltage.