The performance of a sub-100-nm gate-length p-channel TFET-based biosensor (pTFET-BS) covering a wide range of protein-molecules is presented, and for the first time the optimized length-range of the nanogap cavity of the biosensor through the modeling of the presence of discrete number of biomolecules, followed by shift-saturation in corresponding transfer characteristics, is reported in this paper. Furthermore, considering a real time process related over-etching effect, a variability study on the random position of the conjugated protein-molecules within the cavity, followed by a corresponding statistical analysis, are carried out. Results show that 85% to 95% (65–85%) of total combinations produce beyond 50% of maximum V_th- (I_DS-) sensitivity values, ensuring stability and hence reliability of the proposed sensor device.

介绍了涵盖广泛蛋白质分子的亚 100 nm 栅极长度 p 沟道 TFET 生物传感器 (pTFET-BS) 的性能，并首次展示了纳米间隙腔的优化长度范围本文报道了通过对离散数量的生物分子的存在进行建模，然后在相应的转移特性中进行位移饱和来构建生物传感器。此外，考虑到与过蚀刻效应相关的实时过程，对腔内共轭蛋白质分子的随机位置进行了可变性研究，然后进行了相应的统计分析。结果表明，85% 到 95% (65–85%) 的总组合产生超过 50% 的最大 V _th - (I _DS-) 灵敏度值，确保所提出的传感器设备的稳定性和可靠性。