Epiwafer

Lumens developed a monolithic stacked RGB microLED epiwafer technology

Specialized Korea-based LED developer Lumens announced that it has developed a Monolithic RGB epitaxial wafers for micro-LED display production. The new technology stacks the three color LEDs on on top of the other on the wafer.

A comparison between Lumen's stacked RGB transfer process (bottom) and the standard process (top)

A stacked microLED architecture improves the performance, while also making the transfer process more productive. The company says that its design will offer a dramatic reduction in the production costs - especially the transfer process, which is reduced to a third (in terms of number of transfer steps), while also doing all the process from a single wafer.

Read the full story Posted: Jan 26,2023

Aixtron launches a new fully-automated 200 mm system for microLED mass production

Aixtron launched a new fully-automated production system, the G10-AsP, targeting the microLED and laser markets. The company says that the G10-AsP ,the first system to offer a fully automated process, enables the highest throughput of its class with uniformity and defect levels never seen before.

Aixtron says that this system will allow, for the first time, the mass production of 10um (or lower) microLED chips, with high performance. The G10-AsP offers a 200mm AsP Batch reactor and comes with In-Situ Cleaning and an automated cassette-to-cassette (C2C) wafer loading.

Read the full story Posted: Jan 26,2023

Sundiode and Soft-EPI successfully grew a monolithic all-InGaN stacked-RGB LED structure

Stacked-RGB microLED microdisplay developed Sundiode announced that it has achieved the successful growth of a monolithic, all-InGaN RGB LED structure on a single sapphire wafer. This structure was developed in collaboration with Soft-EPI.

Sundiode's epitaxial technology enables stacked-RGB LEDs with multiple junctions, capable of emitting RGB colors independently. This structure makes it easier to produce ultra-high density microdisplays.

Read the full story Posted: Jan 11,2023

Ams Osram: we are clearly leading with microLEDs, to start 8-inch production in 2024

In 2021, ams Osram announced that it will expand its LED production plant in Kulim, Malaysia, with an investment of around $850 million. Osram plans to produce mini-LED and micro-LED chips on 8-inch wafers in Kulim.

ams Osram LED production facility in Kulim, Malaysia

ams Osram already said it regards microLED as one of its key initiatives, and in a recent conference call the company's CEO emphasized that that microLED is one of the areas in which the company has clear advantages and is a market leader - and it will direct more efforts on microLEDs. The company is on track, it was revealed, to start microLED production in Kulim in 2024.

Read the full story Posted: Dec 15,2022

A spotlight on Lextar: a Microled Industry Association member

We're happy to interview Lextar, as part of our new series of interviews with MicroLED Industry Association members. Lextar, a global LED developer, was established in 2008 in Taiwan as a subsidiary of AU Optronics, and is now part of Ennostar following a merger with Epistar. Lextar is producing microLED chips, and has launched its first commercial microLED products In 2018.

Q: Hello! Can you introduce your company and technology?

Lextar Electronics, a subsidiary of Ennostar Inc., was founded in May 2008 and has top research and developed team on T.E.M.O.( Thermal.Electrical .Mechanical. Optical ) vertical integration technology with over 2,300 patents worldwide and offers excellent optoelectronics technology solutions and services based on great expertise and group support. Lextar’s products cover LCD backlights, Mini LED, automotive, 3D/2D sensing, UV sterilization/curing and professional lighting which are widely applied in home appliances, automotive, industrial areas, etc.

In order to accelerate the investment of advanced applications and improve operation efficiency, Lextar and EPISTAR jointly established the best compound semiconductor investment platform - Ennostar Holdings (stock code 3714) through share swap in 2021.

Read the full story Posted: Nov 21,2022

3D-Micromac sold several LLO systems for the production of microLED devices in Asia

3D-Micromac announced that a leading optical solutions provider has purchased several microMIRA laser lift-off (LLO) systems to use in the production of microLED devices. The systems will be installed in pilot lines and production lines at its state-of-the-art LED chip factory in Asia

3D-Micromac says that the microMIRA laser system provides highly uniform, force-free lift-off of different layers on large-area substrates at high processing speeds without the need for costly and polluting wet chemical processes. The unique line beam system is built on a highly customizable platform that can incorporate different laser sources, wavelengths and beam paths to meet each customer's unique requirements. The system is capable of processing different substrate materials and sizes, and can achieve processing speeds (including handling) of up to 60 eight-inch wafers per hour.

Read the full story Posted: Nov 08,2022

Spotlight on ALLOS Semiconductors: a Microled Industry Association member

We're happy to interview ALLOS Semiconductors, as part of our new series of interviews with MicroLED Industry Association members. ALLOS Semiconductors is an IP licensing and technology company that focuses on GaN-on-Si technology for the microLED industry. ALLOS offers a turn-key technology transfer to establish a super-uniform CMOS-compatible large epiwafer process at customers within only 12 weeks.

Q: Hello! Can you introduce your company and technology?

ALLOS Semiconductors is the global leader for gallium nitride on silicon epiwafer technologies (GaN-on-Si) for next generation, micro LED-based display solutions and other applications building on more than 20 years track-record.

Our customer and partner base includes top-tier companies from the electronic device, display, LED and semiconductor foundry industries. They benefit from the cost, yield and performance advantages of our patent-protected 200 and 300 mm GaN-on-Si micro LED epiwafer technologies – including our unique 1 bin® technologies.

Read the full story Posted: Nov 07,2022

Epistar to invest $122 million USD to build 150 mm microLED epiwafer capacity

According to Ennostar, the company intends to invest around $122 million USD in its Epistar subsidiary, with an aim to setup a production capacity of 150mm microLED epitaxial wafers. The investment will be performed in several stages.

Ennostar also updates that Epistar has completed its mini LED chip production capacity, but the demand for such chips is lower than expected, and so the company's mini LED production utilization is not at 100%.

Read the full story Posted: Aug 11,2022

Aixtron is upbeat on the microLED industry, says orders for its production tools have started to kick in

During Aixtron's Q1 2022 financial results conference call the company's CEO made some interesting comments on its microLED business and the market in general.

Aixtron says that it sees the microLED display industry advancing "as expected". Demand for its microLED production tools has "started to kick in". The company is "increasingly confident" that we will 'soon' see commercial microLED displays on the market.

Read the full story Posted: May 09,2022

Enkris launches GaN-on-Si microLED epiwafers on 300 mm wafers

China-based GaN epiwafer producer Enkris Semiconductor launched new microLED epiwafers. The "Full Color GaN" series offers GaN-on-Si microLED epiwafers, with wafers sizes of up to 300 mm.

Enkris full-color GaN microLEDs series

Enkris' new epiwafers offers blue, red and green LED arrays, all based on the same material platform. Enkris Semiconductor uses its patented strain engineering and polarization engineering, which it says is unique, to expand its GaN-on-Si LED epiwafer product portfolio to all colors (with wavelengths of 390-650nm).

Read the full story Posted: Apr 11,2022