发明授权
US5607609A Process and apparatus for soldering electronic components to printed circuit board, and assembly of electronic components and printed circuit board obtained by way of soldering 失效
将电子部件焊接到印刷电路板的工艺和设备,以及通过焊接获得的电子部件和印刷电路板的组装

Process and apparatus for soldering electronic components to printed
circuit board, and assembly of electronic components and printed
circuit board obtained by way of soldering
摘要:
In accordance with the present invention, there is provided a soldering process comprising the steps of: providing in a furnace first and second heaters each adapted to emit infrared energy; setting a printed circuit board, which has a solder paste and an electronic component thereon, in the furnace; heating the printed circuit board with the first heater; and heating the electronic component with the second heater;wherein the first and second heaters have different radiation spectra such that infrared energy irradiated by the first heater is more absorbed by the printed circuit board and less absorbed by the electronic component than that irradiated by the second heater. The present invention also provides a soldering apparatus for use in such soldering process.
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