PURPOSE: To delete a feedthrough capacitor which connects an inner circuit of a shield case which covers a printed board with its outer circuit without damaging a shield effect against the interference radio wave for of a printed board to be used in various kind of electronic equipment.

CONSTITUTION: An inner layer of a circuit connection foil 2b is installed between an outer layer ground foil 1a above and an outer layer ground foil 1c below on a multilayer printed board wherein this inner connection foil is enclosed by the inner layer ground foil 1b. A large number of through holes are used to connect between the outer layer ground foil and the inner layer ground foils. The solder resist on the outer layer ground foil is deleted corresponding to the shape of the shield case in the portion where contacts the printed board of the shield case which covers the printed board. This construction makes it possible to shield the interference radio wave without using a feedthrough capacitor.