Patent ID: 8816412
Filing Date: 2014-08-26
Classification: H01L

Abstract:
1. An image sensor having a light receiving region, and an optical black region bordering the light receiving region, and comprising: a semiconductor substrate; an interconnection disposed on the semiconductor substrate and comprising a line of electrically conductive material extending lengthwise along the interface between the optical black region and the light receiving region; a first group of via plugs interposed between the line of electrically conductive material and the semiconductor substrate, the via plugs of the first group spaced from one another in the lengthwise direction of the line of electrically conductive material such that first gaps are defined between the via plugs of the first group in the lengthwise direction; and a second group of via plugs interposed between the line of electrically conductive material and the semiconductor substrate, the via plugs of the second group spaced from one another in the lengthwise direction of the line of electrically conductive material such that second gaps are defined between the via plugs of the second group in the lengthwise direction, and wherein the first group of the via plugs is disposed to one side of and adjacent the interface, the second group of via plugs is disposed on the other side of and adjacent the interface, and the first group of via plugs is offset in the lengthwise direction from the second group of via plugs such that the first gaps between the via plugs of the first group are aligned with the via plugs of the second group, respectively, in a widthwise direction of the line perpendicular to the lengthwise direction, and such that the second gaps between the via plugs of the second group are aligned with the via plugs of the first group, respectively, in the widthwise direction.