Patent ID: 7038287

Claim:
A photo-sensing device package comprising: (a) an assembly portion including: i. a substrate formed of a material substantially transparent to light within a predetermined range of wavelengths; ii. at least a first metal layer formed on said substrate about a front surface region thereof; and, iii. at least one passivation layer formed to extend over said first metal layer, said passivation layer being patterned to define a plurality of first and second access openings to respectively describe on said first metal layer a plurality of first and second solder bump pads, each of said first solder bump pads being interconnected to at least one of said second solder bump pads, said assembly portion including a second metal layer formed at least partially on said passivation layer, said second metal layer being patterned to extend at least partially over said first and second access openings to contact said first and second solder bump pads; (b) a sensing portion including at least one photo-sensing die, said photo-sensing die having formed at a forward surface thereof at least one photo-sensing area for photo-electronically transducing light within said predetermined range of wavelengths, said photo-sensing area opposing said front surface region of said assembly portion substrate, said photo-sensing die having formed thereon a plurality of solder bump pads electrically coupled to said photo-sensing area; and, (c) a plurality of first solder joints joining said sensing and assembly portions, each of said first solder joints extending between one said solder bump pad of said sensing portion and one said first solder bump pad of said assembly portion.