A printed circuit board assembly includes: a base material of printed boards; a solder pad formed on a pad-forming portion of the base material of printed boards and having a lead-coupling portion, a soldermask-covered portion, and an intermediate portion interposed therebetween; a soldermask having a solder pad-covering portion formed on the soldermask-covered portion of the solder pad and a remainder portion formed on the base material of printed boards; and a solder paste having one portion formed on the lead-coupling portion of the solder pad and attached to a lead of an electronic component, and the other portion formed on the intermediate portion of the solder pad, the solder pad-covering portion of the soldermask being substantially free of solder paste thereabove.