Patent ID: 6507054
Filing Date: 2003-01-14
Classification: H01L

Abstract:
A solid-state imaging device, comprising:a semiconductor substrate of a first conduction type; a semiconductor layer of a second conduction type formed on the main surface of the semiconductor substrate; a separation region of a first conduction type formed on the main surface of the semiconductor substrate so as to demarcate the semiconductor layer; an annular first semiconductor region of a first conduction type formed adjacent to the separation region within the semiconductor layer demarcated by the separation region on the main surface of the semiconductor substrate; a second semiconductor region of a second conduction type formed touching the first semiconductor region on the inside of the first semiconductor region on the main surface of the semiconductor substrate; a first insulating film formed annularly over the first semiconductor region; and an electrode formed over the first insulating film so as to be contiguous with the second semiconductor region via an opening formed in the first insulating film, wherein the electrode is made up of aluminum containing copper, and a charge sweeping component is constituted by the first semiconductor region, the second semiconductor region, the first insulating film, and the electrode.