发明授权
US3991347A Plated-through hole soldering to filter body 失效
电镀通孔焊接到过滤体

Plated-through hole soldering to filter body
摘要:
A method of one step soldering of the outer diameter of a filter sleeve to a printed circuit board while soldering the leads thereto simultaneously as well as the completed filter assembly. The method comprises provided a printed circuit board having an electrically conductive coating on at least the upper surface with a portion of the conductor removed in the regions where leads from the filter to be positioned on the top surface of the printed circuit board are to extend through the printed circuit board for soldering. The printed circuit board includes apertures extending entirely therethrough, not only for the leads from the components positioned on the surface thereof, but also beneath filter sleeves positioned on the printed circuit board. The apertures in the printed circuit board are preferably coated with an electrically conductive material to provide better adherence for the solder during the soldering operation. In the event a conductive ground plane is to be utilized on the upper and lower surfaces of the printed circuit board, it is essential that the apertures beneath the filter sleeves be plated through.
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