| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer printed wiring board which is not required to make a dielectric body more uniform in thickness and can be easily manufactured. SOLUTION: A multilayer printed wiring board of strip structure is equipped with dielectric bodies 2 and 3 which are located above and below a signal line pattern 1 and asymmetrical to each other in thickness. The thickness ratio of the upper dielectric body 2 to lower dielectric body 3 is set at 2.4:1 or below. Even if the dielectric bodies 2 and 3 vary in thickness, making their thicknesses deviate slightly from the prescribed values, a change rate of Z0 due to this deviation can be made small. |
