Featured Articles

HP Stream is a Chromebook killer priced at $200

HP Stream is a Chromebook killer priced at $200

We have been hearing reports of a new breed of affordable Windows notebooks for months. It is alleged that a number…

More...
AMD Radeon R7 SSD line-up goes official

AMD Radeon R7 SSD line-up goes official

AMD has officially launched its first ever SSDs and all three are part of AMD’s AMD Radeon R7 SSD series.

More...
KitKat has more than a fifth of Android users

KitKat has more than a fifth of Android users

Android 4.4 is now running on more than a fifth of Android devices, according to Google’s latest figures.

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