Patent ID: 7623397
Filing Date: 2009-11-24
Classification: G06F,G11C,H01L,H03L

Abstract:
1. A semiconductor device comprising: a semiconductor integrated circuit device; and a wiring portion including external connecting terminals and wiring paths, which is formed on the wiring portion and connects the external connecting terminals to corresponding terminals on a semiconductor chip, wherein the wiring portion further includes a first path which is formed on the wiring portion and which receives a signal from the semiconductor integrated circuit device and outputting the signal to the semiconductor integrated circuit device and not receiving the signal from any of the external connecting terminals nor outputting the signal to any of the external connecting terminals, and wherein the first path is arranged to a feedback path for simulating delay characteristics of the wiring paths on the wiring portion, for synchronizing a phase of an output signal from a predetermined one of the external connecting terminals to a phase of an input signal to another predetermined one of the external connecting terminals.