Online Non-contact Fault Detection of LED Chips

被引：2
|
作者：
Li, Lian [1 ]
Wen, Jing [1 ]
Li, Ping [1 ]
Wen, Yumei [1 ]
Yin, Fei [1 ]
机构：
[1] Chongqing Univ, Coll Optoelect Engn, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 630044, Peoples R China
来源：
2008 7TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, VOLS 1-23 | 2008年
关键词：
LED; non-contact detection; online detection; photovoltaic effect; packaging;
D O I：
10.1109/WCICA.2008.4592937
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An online non-contact fault detection Method of LED chips is presented based on the photovoltaic effect in diodes. By observing the photo-generated current in the bonding lead frame of a LED chip, the LED chip and its electric connection with the lead frame during packaging are checked. The fault detection principle is described in detail in this paper. By using the method based on the law of electromagnetic induction, the photo-generated current can be measured without any touch. The experimental results show that the method can be easily realized, and thus can be used for online fault detection of LED chips in packaging.
引用
收藏
页码：280 / 283
页数：4
相关论文
共 50 条
  • [31] NON-CONTACT DETECTION OF HEAD POSTURE DURING SLEEP
    Akbarian, S.
    Zhu, K.
    Montazeri, N.
    Delfi, G.
    Yadollahi, A.
    Taati, B.
    SLEEP MEDICINE, 2019, 64 : S6 - S7
  • [32] Non-contact detection of hidden objects under clothes
    Eremeev, A. I.
    Shipilov, S. E.
    Satarov, R. N.
    Fedyanin, I. S.
    Khmelev, V. L.
    Yakubov, V. P.
    III INTERNATIONAL CONFERENCE COGNITIVE ROBOTICS, 2019, 516
  • [33] A Capacitive Sensing System for Non-Contact Detection of Ice
    Baby, Cyril K.
    George, Boby
    INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS, 2014, 7 (05):
  • [34] Non-contact detection of magnetoelastic bilayer position sensors
    Kosel, J
    Pfützner, H
    Mehnen, L
    Kaniusas, E
    Meydan, T
    Vázquez, M
    Rohn, M
    Merlo, AM
    Marquardt, B
    SENSORS AND ACTUATORS A-PHYSICAL, 2005, 123-24 : 349 - 353
  • [35] Non-contact detection of free flying nanoliter droplets
    Ernst, A.
    Streule, W.
    Zengerle, R.
    Koltay, P.
    TRANSDUCERS '07 & EUROSENSORS XXI, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2, 2007,
  • [36] Non-contact detection of human heart rate with Kinect
    Zhou, Liqian
    Yin, Ming
    Xu, Xi
    Yuan, Xinpan
    Liu, Xiaojun
    CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, 2019, 22 (Suppl 4): : S8199 - S8206
  • [37] Non-contact Vital Sign Detection Using Gain Detection Technique
    Peng, Kang-Chun
    Sung, Meng-Che
    Wang, Fu-Kang
    Horng, Tzyy-Sheng
    2021 IEEE INTERNATIONAL SYMPOSIUM ON RADIO-FREQUENCY INTEGRATION TECHNOLOGY (RFIT), 2021,
  • [38] Online non-contact quality control of noodle dough using ultrasound
    Kerherve, S. O.
    Guillermic, R. -M.
    Strybulevych, A.
    Hatcher, D. W.
    Scanlon, M. G.
    Page, J. H.
    FOOD CONTROL, 2019, 104 : 349 - 357
  • [39] Non-contact mapping
    Schneider, MAE
    Schmitt, C
    ZEITSCHRIFT FUR KARDIOLOGIE, 2000, 89 : 177 - 185
  • [40] Non-contact NDE
    Palmer, SB
    INSIGHT, 1995, 37 (05) : 366 - 367
12345