Samsung 16.3MP Wi-Fi Digital Camera

“If you were asked to design a camera sensor, you’d naturally put the photo receptors on top, closest to the light. Oddly enough, because of the way chips are fabricated, until recently most camera sensors have captured light at the bottom, underneath layers of interconnections. The recent introduction of back-illuminated (BI) sensor technology (also referred to as backside-illuminated or BSI) has changed all that. It is now possible to build sensors “the right way round” with the photo receptive layer facing the light. Back illumination has made some headlines for allowing better low-light performance…” Techradar