Figure 2.

The modified THH-VCSOA device. Schematic diagram to illustrate (a) the THH-VCSOA structure and its contact configuration and (b) the potential distributions of the device along the p-channel (broken line) and n-channel (solid line). In the region of V_p > V_n, the device is forward-biased, while in the region of V_n > V_p, the device is reverse-biased.