A spotlight on Comptek: a Microled Industry Association member

We're happy to interview Comptek Solutions, as part of our new series of interviews with MicroLED Industry Association members. Comptek, established in 2017 as a spin-off from the university of Turku, Finland, develops quantum technology (branded as Kontrox) that boosts the performance of devices such as microLEDs and lasers.

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

Vicente Calvo, Comptek's CEO and co-founder: Comptek Solutions is a forerunner in III-V compound semiconductor surface engineering. We have developed a novel surface treatment process - Kontrox - which effectively passivates the surface of the materials by forming a high-quality native crystalline oxide layer with very low surface defect state density.  In µLEDs, Kontrox is applied to the chip sidewalls to prevent non-radiative recombination mechanisms, effectively passivating the surface.  This drastically improves the performance and manufacturing yields of µLEDs, particularly at small chip sizes.

Q: Can you say why you joined the microLED association and what you hope to achieve?

The association is a perfect networking platform offering an excellent outlook on the current developments and trends in the µLED industry. We particularly appreciate the opportunity to connect to key industry players.

Read the full story Posted: Dec 12,2022

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

Aixtron receives its first order for tools used for volume production of microLEDs

Aixtron announced its financial results for Q2 2022, with the company's highest quarterly order intake since 2011. The company said that it received its first order for tools used in volume production of microLED devices.

Aixtron announced several microLED system orders in the past, but these were R&D or pilot line systems. In 2021 Aixtron said that a US Tier-1 LED producer has selected Aixtron's AIX G5+ C equipment for microLED device production. In February 2022 Wuhan-based HC Semitek selected Aixtron's Planetary AIX 2800G4-TM (IC2) and AIX G5+ C MOCVD systems to produce microLEDs.

Read the full story Posted: Jul 28,2022

Kulicke and Soffa received new purchase orders for its LUMINEX laser-based mini-LED die-transfer solution

Kulicke and Soffa Industries (K&S) announced that it has received two purchase orders, from two separate customers, for its LUMINEX, a disruptive laser-based mini and micro LED die-transfer solution.

Kulicke & Soffa Luminex system photo

K&S says that its highly flexible system is capable of single die transfer, multi-die transfer and mass transfer, supporting sorting, mixing, re-pitching and placement process steps. The broad flexibility of this system addresses the growing advanced display value chain and supports needs of LED, OSAT, panel and display suppliers.


Read the full story Posted: Jun 09,2022

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

STAr Technologies reintroduce UNICORN-LAIT II Parallel Micro-LED Tester

This is a sponsored post by STAr Technologies

With Micro-LED moving from Engineering to Production, a near-zero tolerance for bad pixel, ultra-small pitch probing, automatic electrical and optical measurement systems need to step up. With STAr’s enhanced Unicorn-LAIT II addresses these stricter testing requirements and with its unique parallel test architecture for electrical, driver functionality, RGB, optical testing capabilities.

STAr Unicorn LAIT-II advanced integrated test system photo

STAr Unicorn-LAIT II Advanced Integrated Test System

Unicorn-LAIT II is an advanced high throughput LED test system, that caters for dies in hundreds of thousands to millions of LED per wafer. High Parallelization allows the customer to significantly reduce the Cost of Test and Test Time. The system provides critical measurements for Mini/Micro-LEDs and integrates parallel testing with the electrical, optical measurement with probe station and probe cards in one system, offering a comprehensive analysis result to industry users.

Read the full story Posted: Apr 26,2022

HC Semitek to use Aixtron's G5+ C MOCVD systems for microLED production

Aixtron announced that Wuhan-based HC Semitek is using Aixtron's Planetary AIX 2800G4-TM (IC2) and AIX G5+ C MOCVD systems to produce microLEDs. All of these systems, shipped in Q4 2021, feature a configuration of 8x6 inches.

Aixtron says that this AIX G5+ C system uses wafer-level control (based on Auto-Feed Forward) of the film surface temperature during the epitaxial process in combination with Ultraviolet (UV) pyrometry. This warrants, according to Aixtron, a very accurate control of the Indium incorporation into the Multi-Quantum wells (MQW), which will ultimately define the wavelength consistency among all produced wafers

Read the full story Posted: Feb 23,2022

Bolite Optoelectronics launches a new laser-based side-wiring solution

Taiwan-based laser micromachining subsystem and equipment manufacturer Bolite Optoelectronics announced its new automated side-wiring system, the laser-based Bolite SW-L, which can be used for the production of tiled microLED displays.

Bolite SW-L system photo

This laser-based tool offers high-precision alignment, advanced process control, and full automation with robotic handling. The minimum line with and spacing is 5 um. Bolite says that this system is highly compatible with TFT production processes. The SW-L systems are now available, and Bolite is already accepting orders.


Read the full story Posted: Feb 21,2022

Coherent publishes new white paper to discuss the role of lasers in microLED production

This is a sponsored post by Coherent

Coherent is a leading global supplier of lasers and photonics technology. For the MicroLED industry, Coherent provides several solutions from a single laser source, optical systems up to an integrated system for the three vital processes in MicroLED fabrication – Laser Lift-Off (LLO), Laser-Induced Forward Transfer (LIFT), and Repair/Trimming.

Coherent recently published a new white paper that provides an update on how high-energy ultraviolet laser beams enable LLO and LIFT processes. The white paper shows the importance of a perfect combination of laser and optical design to a how these lasers ensure placement accuracy and mass transfer that will remain future-proof as microLED chip die size continues to shrink.



Read the full story Posted: Jan 24,2022

Applied Materials Baccini Cell Systems provides advanced screen printing solutions for microLED production

This is a sponsored post by Applied Materials

Applied Materials Baccini Cell Systems provides advanced screen-printing solutions and systems for a wide range of applications - including for MicroLED production.

Here is an interview we conducted with Applied Materials' Director of Global Product Marketing, Daniel Hada, who details the company's solutions for MicroLED production and R&D.

Q: Can you tell us a little bit about Applied Materials' Baccini systems? What kind of systems are you offering?

We provide advanced screen-printing solutions for both R&D applications and high volume manufacturing. All Baccini systems are built for sheet-to-sheet printing, either on flexible or rigid substrates. In addition to our screen-printing capabilities, we also provide customers with different drying and curing solutions, in-line inspection systems to monitor the quality of the print immediately after the print, and fully automated print lines to enable low cost, and high volume manufacturing. Utilizing Baccini’s Esatto technology which provides high accuracy and high print repeatability, we developed the Double Print technology years ago, to allow print on print capability for printing narrow lines/small features with high aspect ratios and to minimize interruptions in the printed lines.


Read the full story Posted: Dec 20,2021