Patent ID: 6583558
Filing Date: 2003-06-24
Classification: H01J,H01L

Abstract:
An electron tube includinga vacuum container, a cathode sealed in the vacuum container and having a photocathode surface containing an alkali metal, and an anode sealed in the vacuum container and having a rear side irradiation type semiconductor device formed with a charge transmission portion, the anode having a rear surface side in confrontation with the photocathode surface; characterized in that: the rear side irradiation type semiconductor device includes a flattened film, an electrically conductive lead, and a thin film, the flattened film covering the charge transmission portion and having a flattened top surface; the lead being formed on the flattened film and electrically connected to the charge transmission portion; and the thin film being formed over the flattened film and the lead, and being mainly composed of a silicon nitride.