ASX-Dividend-Report-Banner

Mass production of high-quality, self-standing, large-diameter single-crystal (111) diamond substrates within reach

March 04, 2025 11:00 AM AEDT | By Cision
 Mass production of high-quality, self-standing, large-diameter single-crystal (111) diamond substrates within reach
Image source: Kalkine Media

Development of n-Type Diamonds for Practical Use in Diamond Semiconductors also Making Advances

TOKYO, March 4, 2025 /PRNewswire/ -- Orbray has developed production technology for the world's largest self-standing single-crystal (111) diamond substrates, measuring 20mm square. This achievement marks significant steps in advancing diamond-based quantum devices and power devices. The company aims to commercialize large (111) diamond substrates by 2026 and is also actively working on the development of n-type self-standing diamond substrates, a crucial component for making diamond semiconductor devices mainstream.

Figure: Freestanding 20mm square single-crystal (111) diamond substrate.
Figure: Freestanding 20mm square single-crystal (111) diamond substrate.

Diamond semiconductors are being developed for a wide range of applications due to their exceptional properties. In recent years, there has been significant progress in increasing the size and improving the quality of diamond substrates to meet growing industry demand. High-quality (111) diamond substrates have drawn particular interest in the development of diamond quantum devices that contain nitrogen-vacancy (NV) centers. Additionally, (111) diamond substrates are regarded as essential not only for quantum applications but also for achieving high-performance n-type diamond-based devices, including diamond power devices. However, until now, only small-scale (111) diamond substrates, approximately 3mm square, have been available. (111) diamond crystals were prone to defects known as twin crystals during CVD growth, posing significant challenges to the production of large-diameter and thick single-crystal diamond crystals.

In a September 9, 2021 press release, Orbray Co., Ltd., announced the successful development of a high-quality, 2-inch diameter (100) self-standing diamond substrate using its proprietary efficient step-flow growth method (https://orbray.com/magazine_en/archives/811https://orbray.com/magazine_en/archives/1401). Building on this diamond crystal growth technology and utilizing specially designed sapphire substrates, the company has been advancing the development of a (111) single-crystal diamond self-standing substrate.

This work has culminated in the successful synthesis of a 20mm square (111) single-crystal diamond self-standing substrate without twin defects.

Orbray plans to commercialize this technology by 2026. This advancement is expected to drive progress in the development of diamond semiconductor devices.

Publications related to research results

March 15, 2025, The Japan Society of Applied Physics (JSAP) Spring Meeting: "Large-Diameter (111)-Plane Diamond Free-Standing Crystal Growth"

May 11-15, 2025, International Conference on New Diamond and Nano Carbons: "World-first self-standing (111) heteroepitaxial diamond without twin grown on sapphire substrate"

Orbray Co., Ltd., founded in 1939, specializes in precision jewel parts, small DC motors, and medical equipment, blending cutting-edge technology with craftsmanship. Based in Tokyo, Japan.

Contact

Orbray Co., Ltd., Diamond Division
TEL:+81-3-3919-0101 E-mail:[email protected] 


Disclaimer

The content, including but not limited to any articles, news, quotes, information, data, text, reports, ratings, opinions, images, photos, graphics, graphs, charts, animations and video (Content) is a service of Kalkine Media Pty Ltd (“Kalkine Media, we or us”), ACN 629 651 672 and is available for personal and non-commercial use only. The principal purpose of the Content is to educate and inform. The Content does not contain or imply any recommendation or opinion intended to influence your financial decisions and must not be relied upon by you as such. Some of the Content on this website may be sponsored/non-sponsored, as applicable, but is NOT a solicitation or recommendation to buy, sell or hold the stocks of the company(s) or engage in any investment activity under discussion. Kalkine Media is neither licensed nor qualified to provide investment advice through this platform. Users should make their own enquiries about any investments and Kalkine Media strongly suggests the users to seek advice from a financial adviser, stockbroker or other professional (including taxation and legal advice), as necessary.
The content published on Kalkine Media also includes feeds sourced from third-party providers. Kalkine does not assert any ownership rights over the content provided by these third-party sources. The inclusion of such feeds on the Website is for informational purposes only. Kalkine does not guarantee the accuracy, completeness, or reliability of the content obtained from third-party feeds. Furthermore, Kalkine Media shall not be held liable for any errors, omissions, or inaccuracies in the content obtained from third-party feeds, nor for any damages or losses arising from the use of such content.
Kalkine Media hereby disclaims any and all the liabilities to any user for any direct, indirect, implied, punitive, special, incidental or other consequential damages arising from any use of the Content on this website, which is provided without warranties. The views expressed in the Content by the guests, if any, are their own and do not necessarily represent the views or opinions of Kalkine Media. Some of the images/music that may be used on this website are copyrighted to their respective owner(s). Kalkine Media does not claim ownership of any of the pictures displayed/music used on this website unless stated otherwise. The images/music that may be used on this website are taken from various sources on the internet, including paid subscriptions or are believed to be in public domain. We have made reasonable efforts to accredit the source wherever it was indicated as or found to be necessary.

This disclaimer is subject to change without notice. Users are advised to review this disclaimer periodically for any updates or modifications.

AU_advertise

Advertise your brand on Kalkine Media

Sponsored Articles


Investing Ideas

Previous Next
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.