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    • 8. 发明申请
    • METHOD OF WELDING ELECTRONIC COMPONENTS ON PCBS
    • 在PCBS上焊接电子元件的方法
    • US20090050677A1
    • 2009-02-26
    • US12102613
    • 2008-04-14
    • JIAN-YI HAOI-HSIEN CHIANGCHENG-HSIEN LIN
    • JIAN-YI HAOI-HSIEN CHIANGCHENG-HSIEN LIN
    • B23K31/02
    • H05K3/3494B23K1/0016B23K2101/40B23K2101/42H05K2203/0165H05K2203/1581
    • 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.
    • 公开了一种在PCB上焊接电子部件的示例性方法。 首先,提供包括多个支撑区域的金属托盘。 在每个支撑区域中形成至少一个通孔。 其次,将焊膏施加到PCB的焊盘上。 第三,将电子部件安装在焊盘上。 第四,将印刷电路板放置在金属托盘上,使每个印刷电路板放置在相应的支撑区域中,焊盘位于通孔上方。 最后,焊膏被加热以焊接印刷电路板上的电子部件。 通过这样做,热能够直接通过每个支撑区域中的通孔并使焊膏完全熔化。 结果,可以减少焊接缺陷。