Abstract
Due to latch-up issue, the main problem of silicon-controlled rectifier (SCR) for power supply clamps in on-chip ESD protection is its inherent low holding voltage, especially in high-voltage applications. In this paper, we proposed a MOS-inside SCR (MISCR) showing nearly no snapback character and good ESD robustness, which is qualified for on-chip power clamp ESD protection. The stacked device achieves a series of triggering and holding voltage by altering the stacking number, which can also be used for the high voltage ESD power supply clamp applications.
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Zhang, P., Wang, Y., Zhang, X. et al. Novel silicon-controlled rectifier (SCR) for digital and high-voltage ESD power supply clamp. Sci. China Inf. Sci. 57, 1–6 (2014). https://doi.org/10.1007/s11432-013-5016-1
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DOI: https://doi.org/10.1007/s11432-013-5016-1