Abstract
A protective wall 11 higher than conductive circuit patterns 10, 12, 13, 14 and 15 is formed so that it extends between adjacent patterns. Even if metal powder by fretting corrosion appears, the resist layer 11 prevents it from scattering and shorting the electrically isolated conductive circuit patterns. Thus, the printed-circuit board of the present invention is free from malfunctions of the electronic parts and damage thereto.
Claims0
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