• Title/Summary/Keyword: LRSCR

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A Study on Self-bias SCR Based on LRSCR for Low Voltage Class ESD Protection (저전압급 ESD 보호를 위한 LRSCR 기반 Self-bias SCR에 관한 연구)

  • U-Yeol Seo;Sang-wook Kwon;Jae-yoon Oh;Yong-Seo Koo
    • Journal of IKEEE
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    • v.28 no.2
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    • pp.239-242
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    • 2024
  • This paper proposed an ESD protection device that improved the current driving ability through Self-bias than the existing ESD protection device. The new proposed structure is based on the LRSCR structure and adds an N+ diffusion region, and reduces resistance by connecting the gate and the P+ diffusion region. As a result, it was confirmed that the proposed ESD protection device exhibits a trigger voltage of 11.8V and a holding voltage of 5.9V. It can be used in 5V applications for low voltage and is expected to have excellent current driving capability.

A study on the Design of NPN BJT built-in SCR for Low Voltage Class ESD Protection (저전압급 ESD 보호를 위한 NPN BJT 내장형 SCR 설계에 관한 연구)

  • Jeong, Seung-Gu;Baek, Seung-Hwan;Lee, Byung-Seok;Koo, Yong-Seo
    • Journal of IKEEE
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    • v.26 no.3
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    • pp.520-523
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    • 2022
  • In this paper, an ESD protection device with a simpler structure than the existing ESD protection device is proposed. The proposed new structure operates an additional NPN parasitic bipolar transistor by adding an N+ diffusion region and connecting it to the bridge region, thereby lowering the current gain. As a result, it was confirmed that the proposed ESD protection device has a trigger voltage of 10.8V and a holding voltage of 6.1V. It is expected to have reliability for 5V applications and is expected to have high tolerance characteristics.