| 摘要 |
PURPOSE: A connection pin of a microphone is provided to have a big diameter to enhance the strength, not to be easily bent or broken when connecting to an external substrate, and to freely control the size of a soldering unit, thereby reducing damage to a pin hole and a circuit pattern and implementing a firm soldering process by increasing a gap between the connection pin and the pin hole. CONSTITUTION: One side of a connection pin(20) is inserted into a pin hole(13) of a PCB(10), to be connected with a circuit pattern(14) for soldering. The other side of the connection pin is projected to an exterior to be connected to other substrate(30). The connection pin has a bigger diameter than the pin hole. On an external circumference of the one side of the connection pin, a soldering unit(23) is installed. The soldering unit is pressurized. Each edge(22) of the soldering unit is pressurized on an inner wall of the pin hole, to be temporarily fixed during soldering. |
