A study on electromagnetic coupling between transmission line on model chip

To clarify the electromagnetic compatibility (EMC) problems that related to the interconnection in the integrated circuit (IC) chip, transmission characteristics and electromagnetic coupling between wirings in the specially designed model transmission lines in IC chip were investigated. At first, model transmission lines, designed on the bear chip with the size of 4800 μm square, were created as model parallel transmission lines with straight, right angle and bending lines. The measurement methods, usually used for transmission line on the printed circuit board, are applied to the sample IC. It was demonstrated that decrease of transmission coefficient and dramatically large far-end cross-talk enough to cause serious errors arise at gigahertz frequency band.