Patent ID: 8344432
Filing Date: 2013-01-01
Classification: H01L

Abstract:
1. A solid state imaging device comprising: a light receiving section operable to perform photoelectric conversion; a transfer register formed in a semiconductor base; a transfer electrode formed of a semiconductor layer on the transfer register; a charge transfer section formed of the transfer register and the transfer electrode and operable to transfer a signal charge accumulated in the light receiving section; a bus line electrically connected to a portion of the transfer electrode on the transfer register to supply a driving pulse to the transfer electrode and formed of a metal layer; and a barrier metal layer formed at an interface between the transfer electrode and the bus line in a contact section that connects the transfer electrode and the bus line and has a work function of the size between a work function of the semiconductor layer of the transfer electrode and a work function of the metal layer of the bus line, the barrier metal layer spacing the transfer electrode from the bus line in the contact section.