Intel TeraHertz
Encyclopedia
Intel TeraHertz was Intel's new design for transistor
Transistor
A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current...

s. It uses new materials such as zirconium dioxide
Zirconium dioxide
Zirconium dioxide , sometimes known as zirconia , is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the rare mineral baddeleyite. The high temperature cubic crystalline form is rarely found in nature as mineral tazheranite O2...

 which is a superior insulator reducing current leakages.
Using zirconium dioxide instead of silicon dioxide, this transistor can reduces the current leakage, and thus reduces power comsuption while still working at higher speed and using lower voltages.

One element of this structure is a "depleted substrate transistor," which is a type of CMOS device where the transistor is built in an ultra-thin layer of silicon on top of an embedded layer of insulation. This ultra-thin silicon layer is fully depleted to maximize drive current when the transistor is turned on, allowing the transistor to switch on and off faster.

In contrast, when the transistor is turned off, unwanted current leakage is minimized by the thin insulating layer. This allows the depleted substrate transistor to have 100 times less leakage than traditional silicon-on-insulator schemes. Another innovation of Intel's depleted substrate transistor is the use of low resistance contacts on top of the silicon layer. The transistor can therefore be very small, very fast and consume less power.

Another important element is the development of a new material that replaces silicon dioxide on the wafer. All transistors have a "gate-dielectric," a material that separates a transistor's "gate" from its active region (the gate controls the on-off state of the transistor).

According to Intel, the new design could use only 0.6 volt
Volt
The volt is the SI derived unit for electric potential, electric potential difference, and electromotive force. The volt is named in honor of the Italian physicist Alessandro Volta , who invented the voltaic pile, possibly the first chemical battery.- Definition :A single volt is defined as the...

s. Intel TeraHertz was unveiled in 2001. , it is not used in processors.

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