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SVConnections May 2016
March 2018



New Research Yields Super-Strong Aluminum Alloy

From  Purdue University, January 25, 2018:
 
"Researchers at Purdue University have demonstrated how to create a super-strong aluminum alloy that rivals the strength of stainless steel. The new high-strength aluminum is made possible by introducing "stacking faults" in the crystal structure. While these are easy to produce in metals such as copper and silver, they are difficult to introduce in aluminum because of its high "stacking fault energy. Meanwhile, so-called "twin boundaries" consisting of two layers of stacking faults can form. One type of stacking fault, called a 9R phase, is particularly promising. Researchers at Rice University have now induced a 9R phase in aluminum by introducing iron atoms into aluminum's crystal structure via magnetron sputtering."   READ FULL ARTICLE.

 

Engineers Create New Architecture for Vaporizable Electronics

From Cornell University, January 16, 2018, by Syl Kapacyr:
 
"Engineers from Cornell and Honeywell Aerospace have demonstrated a new method for remotely vaporizing electronics into thin air, giving devices the ability to vanish - along with their valuable data - if they were to get into the wrong hands. This unique ability to self-destruct is at the heart of an emerging technology known as transient electronics, in which key portions of a circuit, or the whole circuit itself, can discreetly disintegrate or dissolve. And because no harmful byproducts are released upon vaporization.

Cornell engineers have created a transient architecture that evades other known drawbacks by using a silicon-dioxide microchip attached to a polycarbonate shell. Hidden within the shell are microscopic cavities filled with rubidium and sodium biflouride - chemicals that can thermally react and decompose the microchip. The thermal reaction can be triggered remotely by using radio waves to open graphene-on-nitride valves that keep the chemicals sealed in the cavities.   READ FULL ARTICLE. 
  
Image: Cornell University  
 

Smart Window Coatings for Room-Temperature Applications

From Advanced Science News, January 21, 2018 by Maria E. Stournara:

"Vanadium dioxide (VO2) is one of the promising thermochromic materials due to its reversible phase transition and high efficiency in modulating IR transmittance. However, its high transition temperature at 68°C has not allowed its use in room-temperature applications.

To overcome these limitations researchers at City University of Hong Kong fabricated a hybrid thermochromic system by integrating VO2 coatings with plasmonic titanium nitride nanoarrays (VO2/TiN). When properly excited by illumination, this smart coating blocks 70% of the IR radiation at 28°C while showing good IR transparency at 20°C.
"
READ FULL ARTICLE.
 

Metasurfaces Enable Improved Optical Lens Performance

From Penn State University, February 8, 2018:
 
"Producing the perfect color images often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory that solves the problem using a single thin lens comprised of gradient index materials and metasurface layers to properly direct the light.

The researchers thought to combine two technologies: that of gradient-index (GRIN) lens, and metasurfaces - ultra-thin optical layers with sub-wavelength features that manipulate the wavefront in a desired manner. By spatially varying the material composition inside the lens, one GRIN lens can perfectly focus two colors. Then, by adding a metasurface to the GRIN lens, one layered lens can perfectly focus all three colors and do the work of three conventional lenses
.
"   READ FULL ARTICLE.
  
 

Scientists Discover Material Ideal for Smart Photovoltaic Windows 

From Berkeley Lab, January 22, 2018, by Julie Chao:
 
" Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) have demonstrated a way for a photovoltaic glass to also be reversibly thermochromic. Researchers discovered that a class of inorganic halide perovskite has amazing phase transition chemistry. It can essentially change from one crystal structure to another when we slightly change the temperature addition of a little water vapor. When the material changes its crystal structure, it changes from transparent to non-transparent. The solar cell shows fully reversible performance and excellent device stability over repeated phase transition cycles without any color fade or performance degradation.   READ FULL ARTICLE.
 
  
Source:   Berkeley Lab
Image: Berkeley Lab
 

The Dawn of Gallium Oxide Microelectronics

From  EurekAlert!, February 6, 2018, by American Institute of Physics :

" Microelectronics designers are always looking to reduce excess power consumption and unnecessary heat generation. Technologies in use today are already scaled close to their limits for the operating voltage desired in many applications. Engineers at the Air Force Research Lab (AFRL) outline a case for producing microelectronics using gallium oxide.

The referenced article, "The dawn of gallium oxide microelectronics," authored by Masataka Higashiwaki and Gregg Jessen in Applied Physics Letters Feb., 6, 2018 (doi:10.1063/1.5017845) mentions several techniques such as molecular beam epitaxy (MBE), pulsed laser deposition, halide vapor phase epitaxy (HVPE), metalorganic chemical vapor deposition, mist chemical vapor deposition (mist-CVD), and low pressure chemical vapor deposition have been used for the epitaxial growth of Ga2O3-based materials on both native and non-native substrates. To date, MBE and HVPE have shown the best control over electron density.
" READ FULL ARTICLE.
 

SEMI Forms Technology Communities to Speed Industry Collaboration and Innovation

From  SEMI, February 6, 2018, by Heidi Hoffman:

" SEMI continues to increase its impact on the success of the electronics industry supply chain. As one step in that process, SEMI President & CEO Ajit Manocha has formed a new group, Technology Communities, to better collaborate, align, and enhance all of SEMI's technology-focused activities by operating them under one umbrella.

The Technology Communities encompasses the Fab Owners Alliance (FOA), FlexTech, and MEMS & Sensors Industry Group (MSIG), as well as the SEMI Standards organization.  It supports key SEMI market verticals including Smart Manufacturing, Smart Data, and Smart MedTech.

Technology Communities also includes the Chemical & Gases Manufacturers Group (CGMG), the Silicon Manufacturers Group (SMG), the Collaborative Alliance for Semiconductor Test (CAST), Semiconductor Components, Instruments and Subsystems (SCIS), the Strategic Innovation Platforms (SIP)and the Heterogeneous Integration Roadmap. Each one of these communities has a unique and focused mission.
READ FULL ARTICLE.

S ource: SEMI
Image:  SEMI  
 

A New Radiation Detector Made from Graphene

From Science Daily, February 6, 2018 by American Institute of Physics:

"Researchers have recently exploited the thermoelectric property of graphene to create a new kind of radiation detector. Known as a bolometer, the new device has a fast response time and, unlike most other bolometers, works over a wide range of temperatures. Other researchers have previously made graphene bolometers, with better properties than this new device, but these models contain a double layer of graphene, making them more difficult to scale. Another advantage of the new device is its coating. The researchers previously developed a method to coat graphene with a dielectric polymer called Parylene, which offers a good balance of performance and scalability. The researchers next plan to make the device using chemical vapor deposition to grow larger pieces of graphene, paving the way for mass production. " READ FULL ARTICLE.

Source:  Science Daily
 

Breakthrough in Fabricating Active-Matrix GaN Microdisplays


From Photonics Spectra, January 2018, by Francois Templier, CEA-Leti and III-V Lab:

" GaN-based microdisplays are one of the best candidates to achieve the high brightness and resolution augmented reality systems require. The main challenge for GaN microdisplays is in fabricating them. Leti and III-V Lab recently developed active-matrix, wide video graphics array (WVGA) GaN microdisplay prototypes fabricated with microtube technology. GaN LED arrays are made on sapphire substrates. Base wafers consist of 4-in.-diameter sapphire with 440-nm or 525-nm LED multiquantum-well InGaN/GaN epitaxial structure grown by metal-organic chemical vapor deposition for blue or green emission, respectively. The GaN array fabrication process consists of depositing and patterning the P-contact metal pads, and patterning the pixels by etching GaN stack using plasma processes. READ FULL ARTICLE.
  
 

Engineers Develop Smart Material That Changes Stiffness When Twisted or Bent

From Iowa State University, February 14, 2018:
 
" Iowa State University researchers found a simple, low-cost way to produce particles of undercooled metal - that's metal that remains liquid even below its melting temperature. The tiny particles (1 to 20 millionths of a meter across) are created by exposing droplets of melted metal to oxygen, creating an oxidation layer that coats the droplets and stops the liquid metal from turning solid. They also found ways to mix the liquid-metal particles with a rubbery elastomer material without breaking the particles. The result is a metal mesh that forms inside the material. The engineers say the new material could be used in medicine to support delicate tissues or in industry to protect valuable sensors. There could also be uses in soft and bio-inspired robotics or reconfigurable and wearable electronics. READ FULL ARTICLE.
  
 

2017 Display Equipment Market Rose 30% to a Record High $25B; 2018 Expected to Fall 9%

From Display Supply Chain Consultants, January 18, 2018:
 
" Display Supply Chain Consultants (DSCC) has released the latest issue of its Quarterly Display Capex and Equipment Service which tracks the display equipment market for 40 segments. Highlights of the report include:
  • 2017 was a record year for the display equipment market, with revenues up 30% to a record high $24.7B. Capital-intensive OLED fabs drove the spending up 143% to a record $15.5B. LCD fab spending was down 27%.
  • In 2018, display equipment spending is expected to fall 9%, although equipment bookings are expected to rise 5% to a record $24.8B in 2019. Driving the decline in OLEDs is slower than expected capacity growth at Samsung's next fab for many different reasons. BOE is expected to replace Samsung as the #1 display equipment customer in 2018. 
  • 2019 looks to be a record year with BOE, China Star, LG Display and Samsung all spending at least $3.6B on display equipment."  READ FULL ARTICLE.
 
 

Stress-Corrosion Cracking and Corrosion Fatigue Impact of IZ-C17+Zinc-Nickel on 4340 Steel

From  Aerospace & Defense Technology, December 1, 2017 by Naval Air Warfare Center, Maryland:
 
" The protection of cathodic metallic materials used for aircraft components, like 4340, Aermet 100, and PH 13-8 corrosion-resistant steel, is critical to keeping the steel from pitting and cracking due to exposure to the operating environment. Two important properties are resistance to stress-corrosion cracking (SCC) and corrosion fatigue. These are insidious failure mechanisms that can lead to part failure in service. Cadmium and Ion vapor deposited (IVD) aluminum coatings are currently used to protect high-strength steels from corrosion, pitting, and cracking. Both are effective but each has shortcomings. Zinc-nickel coatings are being investigated as an alternative coating.   READ FULL ARTICLE.
  
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2018 AIMCAL R2R Europe Conference 
 

June 4 - 7, 2018
 
Munich, 
Germany
 
Join us June 4 - 7 in Munich, Germany for the 2018 AIMCAL R2R Europe Conference. This is the premiere European roll to roll, web coating and finishing conference. Enjoy presentations from top consultants and short courses brought to you by industry professionals. Registration is now open. 

 

Ninth International Conference on Fundamentals and Industrial Applications of HIPIMS
 
 

June 25- 28, Sheffield, UK 
 
HIPIMS 2018 will provide a forum for presenting the latest research by scientists and engineers from industry, engineering institutes and academia. Contributions will cover fundamental scientific aspects as well as application-oriented research and development. In addition, successful introduction to market of new products utilizing HIPIMS will be addressed.  In addition to the technical program, there will be short courses and a technical exhibit


 

16th International Conference on Plasma 
Surface Engineering
 
September 17 - 21, 2018
 
Congress Center
Garmisch-Partenkirchen, 
Germany
 
PSE 2018 covers fundamentals and applications of plasma and ion beam techniques in surface engineering and includes a conference and exhibit. With more than 700 participants from all over the world in 2016, PSE is a well-established and leading forum in the field of plasma as well as ion- and particle-beam assisted surface modification and thin film technologies. The biennial PSE conference series is organized by the European Joint Committee on Plasma and Ion Surface Engineering.

Click here for further information, or contact:  pse-conferences@efds.org

 

SVCF logo

Society of Vacuum Coaters Foundation

Founding Principle: The Society of Vacuum Coaters recognizes that in order to sustain its growth, it is important to attract young, well trained individuals to the field of Vacuum Coatings.

The SVC Foundation pursues this principle by providing scholarships to well qualified students planning to enter fields related to vacuum coatings, and/or providing stipends for travel expenses to attend the annual SVC Technical Conference, usually to present technical papers. The Society of Vacuum Coaters (SVC), the SVCF's founder, and AIMCAL, an organization committed to advancing vacuum roll-coating technology, and their members, provides support for the Foundation to pursue these goals.

Since its inception in 2002, the SVCF has awarded more than 50 scholarships and travel awards totaling over $180,000 to students from 18 countries. Our support can really have an impact in the life of these students; quoting a recent award recipient:

"Not only does the scholarship give the gift of financial support and the possibility to continue learning, it also gives those that have a passion for vacuum coating the blessing of attending such a wonderful program [SVC TechCon] to network and further their knowledge."

Inviting scholarship recipients to the SVC TechCon is an important element of the overall strategy for attracting new talent to our industry. Scholarship beneficiaries carry a special identification on the TechCon badge and we encourage you to meet them and make them feel welcome.

Scholarship Applications must be postmarked by November 30th of each year.


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Do You Have an Interesting Article to Share?

Interested in sharing the latest news in vacuum coating technology?  Forward us a link to an article you want to share with the rest of the SVC readership to  svcinfo@svc.org .  Purchase advertising space in this newsletter by contacting SVC at svcinfo@svc.org .  

SVConnections Contributing Editors: 
Carl M. Lampert, SVC Technical Director 
Joyce Lampert


Society of Vacuum Coaters 
PO Box 10628
Albuquerque, NM 87184
505.897.7743
 

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