Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal – Responsive to electromagnetic radiation
Reexamination Certificate
2005-08-23
2005-08-23
Eckert, George (Department: 2815)
Semiconductor device manufacturing: process
Making device or circuit responsive to nonelectrical signal
Responsive to electromagnetic radiation
C438S069000, C257S434000, C257S435000, C257S440000
Reexamination Certificate
active
06933168
ABSTRACT:
A method and apparatus for employing a light shield to modulate pixel color responsivity. The improved pixel includes a substrate having a photodiode with a light receiving area. A color filter array material of a first color is disposed above the substrate. The pixel has a first relative responsivity. A light shield is disposed above the substrate to modulate the pixel color responsivity. The light shield forms an aperture whose area is substantially equal to the light receiving area adjusted by a reduction factor. The reduction factor is the result of an arithmetic operation between the first relative responsivity and a second relative responsivity, associated with a second pixel of a second color.
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Bawolek Edward J.
Beiley Mark A.
Clark Lawrence T.
Blakely , Sokoloff, Taylor & Zafman LLP
Diaz José R.
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