Modelinig and algorithms of device simulation for ultra-high speed devices

The physical models and algorithms of device simulation for ultra-high speed devices are proposed. The propagation of electromagnetic field induced by electrodes cannot be ignored for analyses of ultra-high speed devices. In order to obtain the consistent basic equations for the both of device and electromagnetic field propagation simulations, we newly introduce Nakanishi-Lautrup (NL) field of quantum electrodynamics (QED) to the electromagnetic field model. The models and algorithms are reported with some calculation results.