Navigation Links
Research discovery could revolutionize semiconductor manufacture
Date:11/28/2012

A completely new method of manufacturing the smallest structures in electronics could make their manufacture thousands of times quicker, allowing for cheaper semiconductors. The findings have been published in the latest issue of Nature.

Instead of starting from a silicon wafer or other substrate, as is usual today, researchers have made it possible for the structures to grow from freely suspended nanoparticles of gold in a flowing gas.

Behind the discovery is Lars Samuelson, Professor of Semiconductor Physics at Lund University, Sweden, and head of the University's Nanometre Structure Consortium. He believes the technology will be ready for commercialisation in two to four years' time. A prototype for solar cells is expected to be completed in two years.

"When I first suggested the idea of getting rid of the substrate, people around me said 'you're out of your mind, Lars; that would never work'. When we tested the principle in one of our converted ovens at 400C, the results were better than we could have dreamt of", he says.

"The basic idea was to let nanoparticles of gold serve as a substrate from which the semiconductors grow. This means that the accepted concepts really were turned upside down!"

Since then, the technology has been refined, patents have been obtained and further studies have been conducted. In the article in Nature, the researchers show how the growth can be controlled using temperature, time and the size of the gold nanoparticles.

Recently, they have also built a prototype machine with a specially built oven. Using a series of ovens, the researchers expect to be able to 'bake' the nanowires, as the structures are called, and thereby develop multiple variants, such as p-n diodes.

A further advantage of the technology is avoiding the cost of expensive semiconductor wafers.

"In addition, the process is not only extremely quick, it is also continuous. Traditional manufacture of substrates is batch-based and is therefore much more time-consuming", adds Lars Samuelson.

At the moment, the researchers are working to develop a good method to capture the nanowires and make them self-assemble in an ordered manner on a specific surface. This could be glass, steel or another material suited to the purpose.

The reason why no one has tested this method before, in the view of Professor Samuelson, is that today's method is so basic and obvious. Such things tend to be difficult to question.

However, the Lund researchers have a head start thanks to their parallel research based on an innovative method in the manufacture of nanowires on semiconductor wafers, known as epitaxy consequently, the researchers have chosen to call the new method aerotaxy. Instead of sculpting structures out of silicon or another semiconductor material, the structures are instead allowed to develop, atomic layer by atomic layer, through controlled self-organisation.

The structures are referred to as nanowires or nanorods. The breakthrough for these semiconductor structures came in 2002 and research on them is primarily carried out at Lund, Berkeley and Harvard universities. The Lund researchers specialise in developing the physical and electrical properties of the wires, which helps create better and more energy-saving solar cells, LEDs, batteries and other electrical equipment that is now an integrated part of our lives.


'/>"/>

Contact: Lars Samuelson
Lars.Samuelson@ftf.lth.se
46-703-177-679
Lund University
Source:Eurekalert  

Related biology technology :

1. Wolters Kluwer Research Now Available via Bloomberg Tradebook
2. ACORN Research, LLC Announces Partnership with AdeptBio, LLC
3. New England Biolabs Introduces Polbase, an Information Repository of Scientific Data for Polymerase Researchers
4. Researching graphene nanoelectronics for a post-silicon world
5. In new quantum-dot LED design, researchers turn troublesome molecules to their advantage
6. BBVA Foundation Unites the Efforts of Massachusetts General Hospital and Barcelonas Vall dHebron Hospital in Biomarker Research for Personalized Cancer Therapies
7. New research points to benefits of innovative cobas® HPV test for primary screening as Englands cervical cancer screening programme includes the test in current HPV "triage" rollout
8. Multidisciplinary team of researchers develop world’s lightest material
9. K computer research results awarded ACM Gordon Bell Prize
10. ResearchMoz: Ophthalmic Devices Market to 2017 - Glaucoma and Cataract Surgery Devices, Minimally Invasive Procedures in Ophthalmic Surgery to Drive the Ophthalmic Surgery Market
11. Researchers shrink tumors and minimize side effects using tumor-homing peptide to deliver treatment
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Research discovery could revolutionize semiconductor manufacture
(Date:10/9/2017)... , Oct. 9, 2017  BioTech Holdings ... mechanism by which its ProCell stem cell therapy ... limb ischemia.  The Company, demonstrated that treatment with ... of limbs saved as compared to standard bone ... molecule HGF resulted in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... , ... At its national board meeting in North Carolina, ARCS® Foundation ... of Physics and Astronomy, has been selected for membership in ARCS Alumni Hall ... 2015 Breakthrough Prize in Fundamental physics for the discovery of the accelerating expansion of ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s SPEAC® System ... standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using surface electromyography ...
(Date:10/7/2017)... (PRWEB) , ... October 06, ... ... leader in Hi-C-based genomic technologies, launched its ProxiMeta™ Hi-C metagenome deconvolution product, ... Hi-C kit and accompanying cloud-based bioinformatics software to perform Hi-C metagenome deconvolution ...
Breaking Biology Technology:
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their ... (DCA). ... launches biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at ... process to allow eligible Delta SkyMiles Members who are enrolled in CLEAR ...
(Date:6/14/2017)... IBM ) is introducing several innovative partner startups at VivaTech ... startups and global businesses, taking place in Paris ... will showcase the solutions they have built with IBM Watson ... France is one of the most dynamic ... in the number of startups created between 2012 and 2015*, ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
Breaking Biology News(10 mins):