| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed wiring board and an impedance matching method therefor for improving the characteristic impedance matching precision in a transmission line. <P>SOLUTION: The printed wiring board comprises a transmission line 14 having a dielectric 13 including a ferroelectric between a signal line 11 and a ground or a power supply line 12. The board is used to apply a strong electric field between the signal line 11 and the ground or the power supply line 12 and carry out the impedance matching of the transmission line 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
