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US07902618B2 Backside illuminated imaging sensor with improved angular response 有权
具有改进的角度响应的背面照明成像传感器

Backside illuminated imaging sensor with improved angular response
Abstract:
A backside illuminated imaging pixel with improved angular response includes a semiconductor layer having a front and a back surface. The imaging pixel also includes a photodiode region formed in the semiconductor layer. The photodiode region includes a first and a second n-region. The first n-region has a centerline projecting between the front and back surfaces of the semiconductor layer. The second n-region is disposed between the first n-region and the back surface of the semiconductor layer such that the second n-region is offset from the centerline of the first n-region.
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