| 摘要 |
Provided is a printed circuit board consisting of laminated substrates each with a fiberglass cloth contained in its resin and with a wiring arranged onto at least one of its surfaces, wherein, in at least one of substrates provided with a wiring for transmitting a higher speed signal than that transmitted by wirings arranged onto the other substrates, a fiberglass cloth having a different property from that of said the other substrates is contained. |
