The print patchboard which possesses the grandpa turn where production manner and the electronic

摘要

PROBLEM TO BE SOLVED: To provide a circuit board having buffering parts around its mounting holes, and its manufacturing method by which the buffering parts are formed around the mounting holes without necessitating a special mold or another molding process or the like.;SOLUTION: In the course of steps of manufacturing the circuit board by mounting parts on a printed wiring board and soldering them, a step of applying a buffer material is provided after a step of printing solder paste. In this step, a heat-curing liquid material is applied around the mounting holes of the printed wiring board. In a manufacturing step wherein solder is heated and soldering is performed, the buffering parts are formed by heat curing the liquid material.;COPYRIGHT: (C)2007,JPO&INPIT