Patent ID: 7868284
Filing Date: 2011-01-11
Classification: G02B,H01L

Abstract:
1. An optical semiconductor package, comprising: a semiconductor component comprising an optical image sensor on its front face, the optical image sensor including a multiplicity of photodiodes; a transparent tablet having a flat top surface and a flat bottom surface, the flat bottom surface of the transparent tablet positioned adjacent the front face of the semiconductor component over the multiplicity of photodiodes, the transparent tablet having a refractive index that progressively increases in a direction between an optical axis of the tablet and a periphery of the tablet, the progressively increasing refractive index effected by means of doping the tablet with metal ions; a single optical lens for the package having a flat bottom surface and a convex top surface, the flat bottom surface of the single optical lens positioned adjacent the flat top surface of the transparent tablet, the single optical lens having a refractive index that progressively decreases in a direction between an optical axis of the single optical lens and a periphery of the single optical lens, the progressively decreasing refractive index effected by means of doping the tablet with metal ions.