METHOD OF WELDING ELECTRONIC COMPONENTS ON PCBS
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United States of America Patent
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app pub date -
Apr 14, 2008
filing date -
Aug 24, 2007
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Abandoned
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Abstract
An exemplary method of welding electronic components on PCBs is disclosed. Firstly, a metal tray including a number of supporting areas is provided. At least one through hole is formed in each of the supporting areas. Secondly, solder pastes are applied onto welding pads of PCBs. Thirdly, electronic components are mounted on the welding pads. Fourthly, PCBs are placed on the metal tray in a manner that each printed circuit board is placed in a corresponding supporting area and the welding pads being above the through hole. Finally, the solder pastes are heated to weld the electronic components on the printed circuit board. By doing so, the heat can pass through the through holes in each supporting area directly and fully melt the solder paste. As a result, welding defects can be reduced.
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