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《JOURNAL OF INFRARED AND MILLIMETER WAVES》 1997-04
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COMPUTER SIMULATION OF THE INFRARED RADIATION SIGNAL OF THE SOLDER JOINT IN SMT LASER SOLDERING

Liang Xuwen (State Key Laboratory of Transsucer Technolgy Shanghai Institute of Metallurgy, Chinese Acadomg of sciences, Shanghai 200050, China) Wang Chunqing Qian Yiyu (National Key Laboratory of Advanced Welding Production Technology, Harbin In  
The solder joint infrared radiation detecting system was developed in SMT laser micro soldering, and a numerical model of infrared sensing of the micro joint was put forward. The calculated results show that the melting and wetting of the solder were recognized by the infrared radiation signal, therefore the signal can be used to control the joint quality simultaneously in laser micro soldering.
【CateGory Index】: TP391.9
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