Solid state color imager and method of manufacture

A solid state color imager with preferential response to at least two colors of light, the imager comprising:

• a first color-selective photoreceptor comprising a first color-selective semiconductor region limited in depth according to a first color fractional absorption ratio for a first color of light;
• and
• a second color-selective photoreceptor comprising a second color-selective semiconductor region limited in depth according to a second color fractional absorption ratio for a second color of light.

A method for manufacturing a solid state color imager, the method comprising:

• creating a first color-selective photoreceptor by fabricating a first color-selective semiconductor region limited in depth according to a first color fractional absorption ratio for a first color of light;
• and
• creating a second color-selective photoreceptor in proximity to the first color-selective photoreceptor by fabricating a second color-selective semiconductor region limited in depth according to a second color fractional absorption ratio for a second color of light.

A solid state imager comprising:

• a first photoreceptor comprising a first color-selective doping profile;
• a second photoreceptor comprising a second color-selective doping profile,
• wherein the first color-selective doping profile provides preferential response to a spectrum of light different than the second-color selective doping profile.