Featured Articles

Android Wear installed on 50-100k phones

Android Wear installed on 50-100k phones

Android Wear is a companion app that you need in order to run your new Android Wear watch.

More...
AMD launches 45W desktop Kaveri parts, finally

AMD launches 45W desktop Kaveri parts, finally

AMD has finally launched three 45W Kaveri SKUs, which were in the works for months. The three chips feature configurable TDP,…

More...
Desktop Broadwell LGA is Socket 1150

Desktop Broadwell LGA is Socket 1150

Broadwell was supposed to come in 2014 and it will ship in the last quarter of this year for detachable thin…

More...
Nvidia officially launches the 8-inch Shield Tablet

Nvidia officially launches the 8-inch Shield Tablet

As expected and reported earlier, Nvidia has now officially announced its newest Shield device, the new 8-inch Shield Tablet. While the…

More...
Aerocool Dead Silence reviewed

Aerocool Dead Silence reviewed

Aerocool is well known for its gamer cases with aggressive styling. However, the Dead Silence chassis offers consumers a new choice,…

More...
Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Friday, 18 May 2012 09:52

Intel's Tri-gate is a trapezoid

Written by Nick Farrell



Platonic solids


Reverse engineering outfit Chipworks has posted microscope cross-sections of parts of the 22-nm Ivy Bridge processor from Intel.

It shows that the much touted FinFETs, which Intel calls tri-gate transistors, are in fact trapezoidal. Chipworks broke up 64-bit, four-core Xeon E3-1230 CPUs intended for the server market, which Chipworks bought in Hong Kong.
What is odd is that Intel appears to have moved away from a rectangular section which it was showing in 2011.

In a statement Gold Standard Simulations has also waded into the debate. Its CEO Professor Ase Asenov said that there is speculation about the possible advantages and disadvantages of the trapezoidal, or almost triangular, shaped 'bulk' FinFET." GSS has performed a simulation analysis of the FinFET using its statistical 3-D TCAD simulator called Garand. Its  simulation looked at the dependence of threshold voltage on gate length for the trapezoidal Intel transistor and an equivalent rectangular-fin transistor.

He said that the rectangular fin has better short channel effects. Still, the million-dollar question is if the almost-triangular shape is on-purpose design, or is this, what bulk FinFET technology can achieve in terms of the fin etching? We will only know when Intel lets people come up and see its etching.

blog comments powered by Disqus

 

Facebook activity

Latest Commented Articles

Recent Comments