AbstractElectron wave devices making use of the wave nature of the electron have been studied extensively. It is important to systematically understand and use the wave phenomena in a potential structure as the operating principle of these devices. In this paper, a method based on Bergeron equivalent circuits is proposed as a technique for time domain analysis of the electron wave propagation expressed by the one‐dimensional quantum‐mechanical wave equation. It is shown that by this technique the time domain analysis of the wave behavior described by the Schrödinger equation under the effective mass approximation and the two‐ and three‐band model equations can be systematically treated by nodal analysis, including boundary conditions. Also, as a boundary condition of an open system that is important in time domain analysis, an absorbing boundary condition due to a potential structure with loss is proposed. By means of the proposed technique, the time domain analysis of the incident wave packet on a GaAs/AlAs structure considering Γ − X mixing, and on a resonant interband tunneling structure is carried out and its behavior is described. © 2001 Scripta Technica, Electron Comm Jpn Pt 2, 85(1): 1–12, 2002.