OPTICAL DEVICE AND METHOD FOR FABRICATING THE SAME

摘要

An optical device includes: an optical element including an imaging region, a peripheral circuit region formed at the rim of the imaging region and including a plurality of electrode portions, and a plurality of microlenses formed on the imaging region; a plurality of through-hole electrodes connected to the respective electrode portions and formed through the semiconductor substrate along the thickness of the semiconductor substrate; a plurality of metal interconnects connected to the respective through-hole electrodes and formed on a back surface of the semiconductor substrate opposite to a principal surface of the semiconductor substrate; an adhesive member formed on a surface of the optical element and made of a resin; and a transparent board bonded to the optical element with the adhesive member interposed therebetween. The transparent board has a planar shape larger than that of the optical element.