Patent ID: 8953076
Filing Date: 2015-02-10
Classification: H01L,H04N

Abstract:
1. A photoelectric conversion device comprising: a p-type storage region; an n-type buried semiconductor region formed under the p-type storage region, the p-type storage region and the buried layer forming a photodiode; a floating diffusion; a transfer transistor configured to transfer holes accumulated in the p-type storage region to the floating diffusion; an amplifier transistor configured to amplify a signal which appears in the floating diffusion; an element isolation region; a channel stop region which is an n-type region and covers at least a lower portion of the element isolation region; an n-type semiconductor region arranged between the channel stop region and the n-type buried layer, wherein the element isolation region includes first element isolation portions arranged adjacent to a first semiconductor region to sandwich the first semiconductor region, the first semiconductor region being a region including, at its surface, an active region of the amplifier transistor, wherein the n-type semiconductor region includes a portion having an upper face contacting the channel stop region and the first semiconductor region, and a lower face contacting the n-type buried layer.