Browse > Article
http://dx.doi.org/10.5762/KAIS.2012.13.1.322

Implementation of Digital Desoldering System for Removing Lead-free Solder  

Oh, Kab-Suk (Dept. of Electronics Engineering, Tongmyong University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.1, 2012 , pp. 322-328 More about this Journal
Abstract
This paper deals with a digital Desoldering system for removing lead-free solder. We proposed a Desoldering system that is to cope with the changed work environment of the solder materials changing from lead solder to lead-free solder, we can be quickly stable to the set temperature, and continuous operation is possible. Proposed system consists of a Desoldering station and a Desoldering gun. For the PID temperature control, we designed the 8bit MCU peripheral circuit. We had a few experiments to confirm the performance of the proposed system, and compared with the specification of same kind of imports. As a result, proposed system than the imported products showed good performance as follows: the time to reach operating temperature is 11 seconds faster, ripple temperature variation is $1.5^{\circ}C$ lower, temperature recovery rate is about $0.14^{\circ}C$/sec faster.
Keywords
Desoldering system; Lead-free Solder; Microprocessor; PCB; PID Controller;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Katsuhiko Ogata, "Modern Control Engineering Second Edition", pp. 592-605, Prentice Hall, 1990.
2 Kab-suk Oh, "Development of digital Solder Station Based on PID Controller", Journal of the Korea Academia-Industrial Cooperation Society, Vol. 11, No. 3, pp. 866-872, March, 2010.   과학기술학회마을   DOI
3 HAKKO, "http://www.hakko.com/english/products /hakko_fm204.html", October, 2011.
4 Yang-Ki An and Dong-han Yoon, "Design and Fabrication of then Digital Iron Using the Micro-processor", The Institute of Electronics Engineers of Korea - System and Control, Vol. 38, No. 5, pp. 33-41, September, 2001.
5 Kee-Young Park, "Processing and System] Hardware Realization of Low Consumption High Frequency Soldering Iron System", The Institute of Electronics Engineers of Korea - IE, Vol. 41, No. 2, pp. 43-48, June, 2004.
6 Ho-Ik Jun, Hyun-Seob Cho, "Design of Digital Correction Circuits Using Microprocessor", Journal of the Korea Academia-Industrial Cooperation Society, Vol. 12, No. 5, PP. 2291 -2293, May, 2011.   과학기술학회마을   DOI
7 Won Ki Jung, Young Suk Kim, "Development of a Micronutrient acupuncture point treatment equipment", Journal of the Korea Academia- Industrial Cooperation Society, Vol. 11, No. 8 pp. 2958-2962, August, 2010.   DOI
8 Ji-Min Yoon, Chae-Young Lim, Kyung-Ho Kim, "A Study of Baby Sleeping Positions Sensing and Safety Band Using an Accelerometer", Journal of the Korea Society of Computer and Information, Vol. 15, No. 6, PP. 11-18, June, 2010.   과학기술학회마을   DOI
9 Yun-Hyung Lee, Gang-Gyoo Jin, Myung-Ok So, "Simple Tuning Methods of PID Controller for Integrating Processes with Time Delay", Journal of the Korean Society of Marine Engineering, Vol. 32, No. 2, PP. 211-379, March, 2008.
10 Soo-Lyong Lee, et al, "PID Control of Unstable Processes with Time Delay", Journal of the Korean Society of Marine Engineering, Vol. 33, No. 5, PP. 637-777, July, 2009.   DOI
11 M. Gronalt, et al, "A heuristic for component switching on SMT placement machines", International Journal of Production Economics, Vol. 53, Issue 2, pp. 181-190, November, 1997.   DOI   ScienceOn
12 J. H. Huang, et al, "A dislocation model of shear fatigue damage and life prediction of SMT solder joints under thermal cycles", Microelectronics and Reliability, Vol. 33, Issue 4, pp. 535-542, March, 1993.   DOI