Patent ID: 8120077

Claim:
A solid-state imaging device, comprising: a semiconductor substrate; a photodiode, formed on the semiconductor substrate, that performs photoelectric conversion of incident light into signal charge; a transfer transistor, formed on the semiconductor substrate, that transfers the signal charge accumulated in the photodiode; a detection capacitor, formed on the semiconductor substrate, that accumulates the signal charge transferred by the transfer transistor; a reset transistor, formed on the semiconductor substrate, that discharges, into a drain, the signal charge accumulated in the detection capacitor; and a trench isolation region, formed on the semiconductor substrate, that surrounds an active region of the photodiode, the transfer transistor, the detection capacitor and the reset transistor, wherein ions are distributed in at least a first boundary between an active region directly below a gate electrode of the reset transistor and the trench isolation region, the ions enhancing generation of carriers of an opposite polarity to a polarity of carriers in a channel below the gate electrode of the reset transistor, wherein the ions are distributed in at least the first boundary in a band having a width in a range of 0.05 μm and 0.20 μm, and wherein the reset transistor has an effective gate width shorter than an effective gate length.