Intel Tri-Gate Test Wafer

Intel Tri-Gate Test Wafer

<< >>
Usage conditions apply
This is an uncut silicon wafer containing Intel’s tri-gate transistor technology, the 22 nanometer microprocessor architecture used in Intel’s Ivy Bridge and Haswell CPU’s. The test structures on this wafer were designed by Uday Shah and Ravi Pillarisetty and provided a proof-of-concept to Intel that 3D tri-gate transistor technology was commercially viable. While the architecture was originally announced in 2002, Intel’s Ivy Bridge CPU’s didn’t hit the market until late 2011, a testimony to the highly intricate nature of microprocessor production.
The highly pure silicon wafer provides the substrate for transistors on the integrated circuits that make up microprocessors. The wiring circuity is imprinted on the silicon via a microscopic photolithography process. Intel’s tri-gate technology refers to the process of stacking a single logic gate on top of two vertical gates, creating conducting channels on three sides of a vertical fin structure, a three dimensional transistor that results in lower energy consumption and increased speed.
Currently not on view (plastic case)
Object Name
date made
Intel Corporation
Physical Description
plastic (case material)
silicon (overallwafer material)
case: 1 in x 14 1/4 in x 12 3/4 in; 2.54 cm x 36.195 cm x 32.385 cm
wafer: 1/32 in x 11 3/4 in;.07938 cm x 29.845 cm
ID Number
catalog number
accession number
Credit Line
Gift of Intel Corporation
See more items in
Work and Industry: Production and Manufacturing
Industry & Manufacturing
Computers & Business Machines
American Enterprise
American Enterprise (wafer)
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object