comment on this article

Wafer pruning set to improve chip manufacturing yields

Puneet Gupta, professor of electrical engineering, UCLA

Looking to improve semiconductor manufacturing yields, Semiconductor Research Corporation and researchers from University of California, Los Angeles have developed a method of monitoring semiconductor wafers that may lead to less expensive chips with higher performance.

The method – called wafer pruning – performs wafer tests earlier in the manufacturing process, rather than after chip packaging. By using process monitors on wafer lines tested after the initial manufacturing steps, manufacturers can evaluate die performance earlier and estimate wafer yield.

"The notion of design assisted manufacturing is a big change from the way things are done currently," said Puneet Gupta, pictured, professor of electrical engineering at UCLA. "Our research provides a way to not waste resources in producing silicon wafers that will eventually lose money because chips on them are not good enough for production. We believe that the cost reductions from this and other design-assisted manufacturing methods that we are investigating could easily be as much as one full technology node."

The researchers are currently fine tuning the approach, which includes a 45nm silicon prototype.
For more on fault tolerant design and the drive to improve yields, click here.

Author
Graham Pitcher

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Safer batteries

Rice University scientists have taken the next step toward the deployment of ...

Data mining

Together with his team, Karsten Reuter, Professor of Theoretical Chemistry at ...

Improving reliability

Cryogenics is the study of the production of extremely cold temperatures and is ...

Signs of life

Since Galvani discovered the effect of electricity on frogs’ legs more than two ...

NI Trend Watch 2014

This report from National Instruments summarises the latest trends in the ...

Capactive sensing

This whitepaper looks at a number of capacitive sensing applications to ...

The changing face

A year of seismic social and political change 1968 saw anti-Vietnam war ...

UK R&D after Brexit

Newly appointed Universities and Science minister Sam Gyimah has arrived on the ...

The project begins

Recently, Stephen Doran took up his position as CEO of the Compound ...