How to attach lead parts and shield case to printed board and how to attach chip parts, lead part and shield case to printed board

摘要

Compared to the conventional method, the method of attaching the lead parts and the shield case to the printed circuit board and the chip parts can reduce the process and the labor, and improve the solder coating accuracy for soldering the printed circuit board and the shield case. , A method for attaching lead parts and shield cases to printed circuit boards is proposed.;The plurality of leads 4L of the printed circuit board 1 and the plurality of leads 4L and the parts 4 of a part of the wiring pattern in the vicinity of each hole into which the leads 4L of the parts 4 should be inserted. Solders 3 and 6, respectively, on the land L formed of a conductive layer in the vicinity of the slit into which each part having the fragments 5N of the plurality of shield cases 5 respectively corresponding thereto is inserted. And a plurality of leads 4L and the respective leads 4L of the parts 4 through the holes of the printed board 1, and surrounds the leads 4L and the parts 4, respectively. As shown in the figure, each part of each of the plurality of shield cases 5 having sections 5N is penetrated through the slit of the printed circuit board 1, and each section 5N is bent to the land side to lead 4L and parts. (4) and the process of loading the shield case 5 to the printed circuit board 1, and the printed circuit board 1 on which the plurality of leads 4L, parts 4, and the plurality of shield cases 5 are loaded. Frolow And then dissolving the solder, and cooling to cool the plurality of leads 4L, each lead 4L of the component 4 and each piece 5N of the plurality of shield cases 5 to the predetermined wiring of the printed circuit board 1. And a step of soldering the pattern to the printed circuit board 1 and cutting the printed board 1 into groups of the leads 4L, the parts 4, and the shield cases 5, and obtaining a plurality of individual circuit blocks. .