Featured Research

from universities, journals, and other organizations

Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth

Date:
February 5, 2014
Source:
Tyndall National Institute
Summary:
Researchers have produced the first ever atom-by-atom simulation of nanoscale film growth by atomic layer deposition (ALD) -- a thin-film technology used in the production of silicon chips.

Researchers at Tyndall National Institute, Ireland, have produced the first ever atom-by-atom simulation of nanoscale film growth by atomic layer deposition (ALD) -- a thin-film technology used in the production of silicon chips.

Related Articles


Present in all electronic devices such as credit cards, mobile phones and computers, each chip is made up of multiple thin layers that provide different functions. ALD has a key role to play in the manufacture of chips with ever thinner layers for the next generation of electronic devices. Growth simulations could help to improve the ALD process, but until now, were not accurate enough over experimental timescales.

Similarly, while quantum mechanical simulations give an accurate atom-by-atom picture of individual ALD reactions at the tiniest scales, this is still far removed from what can be measured in the lab -- until now. The Tyndall group led by Dr Simon Elliott has for the first time combined the accuracy from the quantum mechanical level with the statistics needed to follow how thousands of atoms react millions of times a second, building up layers of material, as in the lab.

Mahdi Shirazi, who will be awarded a PhD for this work, explains what set his research apart: "It was crucial to model the complete set of all ALD reactions, hundreds of them, at the quantum mechanical level and then carefully extract the information that was needed for the growth simulations."

Thus, for the first time, we see the link between atom-by-atom chemical reactions and the growth of layers of materials. This opens the way to new and improved ALD processing of materials for electronic chips, but also for catalysts, solar cells and LED lighting.

The simulations were made possible through the computational power of the Irish Centre for High End Computing and the project was funded by Science Foundation Ireland through the FORME strategic research cluster.


Story Source:

The above story is based on materials provided by Tyndall National Institute. Note: Materials may be edited for content and length.


Cite This Page:

Tyndall National Institute. "Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth." ScienceDaily. ScienceDaily, 5 February 2014. <www.sciencedaily.com/releases/2014/02/140205125413.htm>.
Tyndall National Institute. (2014, February 5). Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2014/02/140205125413.htm
Tyndall National Institute. "Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth." ScienceDaily. www.sciencedaily.com/releases/2014/02/140205125413.htm (accessed October 30, 2014).

Share This



More Matter & Energy News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Robots Get Funky on the Dance Floor

Robots Get Funky on the Dance Floor

AP (Oct. 29, 2014) Dancing, spinning and fighting robots are showing off their agility at "Robocomp" in Krakow. (Oct. 29) Video provided by AP
Powered by NewsLook.com
Saharan Solar Project to Power Europe

Saharan Solar Project to Power Europe

Reuters - Business Video Online (Oct. 29, 2014) A solar energy project in the Tunisian Sahara aims to generate enough clean energy by 2018 to power two million European homes. Matt Stock reports. Video provided by Reuters
Powered by NewsLook.com
Lowe's Testing Robot Sales Assistants in California Store

Lowe's Testing Robot Sales Assistants in California Store

Buzz60 (Oct. 29, 2014) Lowe’s is testing out what it’s describing as a robotic shopping assistant in one of its Orchard Supply Hardware Stores in California. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins