10.14489/td.2025.07.pp.061-066

2025, 07 July

DOI: 10.14489/td.2025.07.pp.061-066

Radaev O. A., Frolov I. V., Sergeev V. A., Zaitsev S. A.
COMPARISON OF LED REJECTION METHODS BY THRESHOLD CURRENT AND VOLTAGE DROP
(pp. 61-66)

Abstract. The results of a study of correlations between the values of the threshold current and the forward voltage drop at a given current with the rate of decrease in the radiation power of InGaN/GaN LEDs during long-term tests are presented. According to the selected rejection criterion, the efficiency of LED rejection was compared according to the specified parameters. It has been found that when rejecting LEDs by threshold current, the probability of errors of the first and second kind is significantly lower compared to the standard method of direct voltage drop rejection.

Keywords: LED, threshold current, forward voltage drop, rejection, testing, efficiency.

+ - About the Authors Click to collapse

O. A. Radaev, I. V. Frolov (Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Ulyanovsk, Russia)
V. A. Sergeev (Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Ulyanovsk, Russia, Ulyanovsk State Technical University, Ulyanovsk, Russia)
S. A. Zaitsev (Ulyanovsk Instrument Manufacturing Design Bureau, Ulyanovsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Vinogradova, K. A., Bugrov, V. E., Kovsh, A. R., et al. (2013). Degradation of white and blue LEDs during longterm operation. Izvestiya Vysshikh Uchebnykh Zavedeniy. Priborostroenie, 56(11), 87–91. [in Russian language]
2. Herzog, A., Wagner, M., & Khanh, T. S. T. (2020). Efficiency droop in green InGaN/GaN light emitting diodes: Degradation mechanisms and initial characteristics. Microelectronics Reliability, 112, Article 113792.
3. Renso, N., Santi, C. D., Caria, A., et al. (2020). Degradation of InGaN-based LEDs: Demonstration of a recombination-dependent defect-generation process. Journal of Applied Physics, 127(18), Article 185701.
4. Bogdanov, A. A. (2015). Monitoring parameters and quality of LEDs and LED products in serial production. Svetotekhnika, (1), 13–22. [in Russian language]
5. Maltsev, A. A., Maltsev, I. A., & Idiatullov, Z. R. (2024). Optimal set of LED characteristics to ensure their reliability and quality. Radiotekhnika, 88(1), 86–91. [in Russian language]
6. Chen, C.-H., Liu, Y.-C., Zhang, M.-H., & Zheng, G.-Z. (2009). LED light bar inspection method and inspection apparatus thereof (TW Patent No. 20103557).
7. Iwahashi, H., & Nakano, S. (2006). Method of inspecting light emitting diode light source, led light source, and film scanning device (JP Patent No. 2006352025).
8. Ogata, O., & Minato, Y. (2004). Method and device for inspecting deterioration of led (JP Patent No. 2004342809).
9. Sergeev, V. A., Frolov, I. V., & Radaev, O. A. (2017). The relationship between the defectness of emitting nanohetero-structures of green InGaN/GaN LEDs and their threshold current values. Technical Physics Letters, 43(2), 224–226.
10. Sergeev, V. A., Radaev, O. A., Frolov, I. V., & Chertoriyskiy, A. A. (2017). Quality assessment of heterojunction LEDs by threshold current level. Izvestiya Vysshikh Uchebnykh Zavedeniy. Elektronika, 22(1), 92–94. [in Russian language]
11. Sergeev, V. A., Frolov, I. V., & Radaev, O. A. (2019). Relationship between the photocurrent level of InGaN/GaN emitting heterostructures and the level of low-frequency noise and threshold current. Izvestiya Vuzov. Elektronika, 24(1), 92–96. [in Russian language]
12. Radaev, O. A., Sergeev, V. A., & Frolov, I. V. (2023). LED threshold current meter. Fizicheskie Osnovy Priborostroeniya, 12(3(49)), 23–27. [in Russian language]
13. Dolin, E., & Mokhnatkin, A. (2010). Standardization: The path to success for LED lighting products. Elektronika: Nauka, Tekhnologiya, Biznes, (6), 38–45. [in Russian language]
14. Abrashkina, M., Dergunova, N., & Rozhkova, T. (2012). On the standardization of LED light sources. Poluprovodnikovaya Svetotekhnika, 2(16), 68–71. [in Russian language]
15. Lighting Europe. (2019). Analysis of technical parameters of LED luminaires. Sovremennaya Svetotekhnika, (1), 44–49. [in Russian language]
16. Gorlov, M. I., & Sergeev, V. A. (2020). Sovremennye diagnosticheskie metody kontrolya kachestva i nadezhnosti poluprovodnikovykh izdeliy [Modern diagnostic methods for quality and reliability control of semiconductor devices]. UlGTU. [in Russian language]
17. Sergeev, V. A. (2000). Kontrol' kachestva moshchnykh tranzistorov po teplofizicheskim parametram [Quality control of power transistors based on thermophysical parameters]. UlGTU. [in Russian language]

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2025.07.pp.061-066

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.