Sony sandwiches DRAM into image sensors for better captures
 

Stacking layers of silicon is all the rage these days, and Sony is getting in on the party with a new image sensor for smartphones at the ISSCC conference. The company is using 3D fabrication to layer a 125MB DRAM cache in between a conventional backside-illuminated image sensor and the accompanying processing circuitry. That DRAM buffer solves some annoying problems with smartphone image capture and lets the sensor capture more frames per second of slow-motion video.

http://techreport.com/news/31403/son...etter-captures