e/Backside illumination

Information
has gloss	eng: Backside illumination (BSI or BI) is a technology for image sensors, either CMOS or CCD. In a device with backside illumination, the silicon light sensor for each pixel is on the "back" side of the silicon wafer, opposite the transistors and metal wiring layers. This increases the efficiency of the sensor as compared to the traditional ("frontside illumination") technology, in which some of the light is scattered by the circuit layers on the front side of the wafer before it can reach the image sensor.
lexicalization	eng: Backside Illumination
instance of	e/Image sensor