Three-dimensional integration technology for real time micro-vision system

It becomes possible to achieve the real time micro-vision system with extremely high image processing speed if three-dimensional LSI comes into reality because a higher level of parallel processing can be performed in three-dimensional LSI. Then, we have proposed a new three-dimensional integration technology for such real time micro-vision system with high image processing speed. Several key technologies for three-dimensional integration such as formation of buried interconnection and micro-bump, wafer thinning, wafer alignment and wafer bonding have been developed.