TABLE OF CONTENT
SR. NO. | TOPIC | PAGE NO. | 1 | Acknowledgment | 3 | 2 | Introduction to 3D transistors | 4 | 3 | Need of 3D transistors | 5 | 4 | Operation | 6 | 5 | Comparison with 2D transistors | 9 | 6 | Advantages | 10 | 7 | Limitations | 10 | 8 | Applications | 11 | 9 | Conclusion | 11 | 10 | References | 11 | | | | | | | | | | | | | | | | | | | | | |
3D TRANSISTORS
There's no denying that the future of computing lies in small, low-power solutions coupled with big-iron cloud services. With 3D transistors, Intel may finally have the ammunition it needs to do battle in the smart phone and tablet markets. Intel made one its most significant technology announcement ever by stating it will base upcoming processors on 3D transistors. This announcement will drive its chip development over the next several years. This non-planar transistor architecture will be used by Intel Corporation in Ivy Bridge processors.
WHAT ARE 3D TRANSISTORS?
It can get confusing very quickly because there are a few technical terms being bandied about to describe the new transistor structure. Intel calls it generically 3D but technically it's a Tri-Gate transistor. The traditional flat two-dimensional "planar" gate is replaced with a thin three-dimensional silicon fin that rises up vertically from the silicon substrate.
The gate wraps around the fin (see image below). The current is controlled by using a gate on each of the three sides of the fin--two on each side and one across the top--rather than just one on top, as is the case with the 2D planar transistor. The additional control enables as much transistor current flowing as possible when the transistor is in the 'on' state (for performance), and as close to zero as possible when it is in the 'off' state (to minimize power), and enables the transistor to switch very quickly between the two states (again, for