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Enabling the Direct View LED Display Market

Chief Executive Officer

Dr. Clinton Ballinger is one of the world’s leading authorities in nanotechnology and products enabled by novel semiconductor materials and CEO/entrepreneur with a reputation for launching “world’s first” products across multiple markets, on time and under budget. Dr. Ballinger possesses a diverse background with demonstrated lean business acumen that includes founding and operating companies, creating, developing and launching new products, extensive capital raising experience, and global team development. Dr. Ballinger’s previous company, Evident Technologies, created, developed and commercialized a new class of LEDs complete with off-shore manufacturing partnerships. He has raised over $25M in equity-based financing and convertible debt and has 15 years of direct P&L responsibility. In addition, he led the effort to launch multiple product lines as well as establishing IP and commercialization strategies.

Chief Technology Officer

Dr. James Lu is the first IEEE Fellow “for contributions to three-dimensional integrated circuit (3D-IC) technology” and an IMAPS Fellow. He has led a number of research programs, including a large research program on 3D integration/packaging since 1999. Dr. Lu has more than 270 publications covering from micro-nano-electronics theory and design to materials, processing, devices, integration and packaging, including Si and GaAs devices, GaN LEDs and power devices. His current research interests include large-area assembly of LEDs, power devices, neutron detectors, micro-nano-electronics and sensors, and 3D integration of smart systems.

Director of Product Development

Dr. Mark Durniak is a materials engineer with over 5 years experience in the growth, characterization, and fabrication of LEDs. Dr. Durniak completed his PhD as an Excellence in Engineering Fellow from Sandia National Laboratory, and was the first to grow and achieve green luminescence from cubic GaN/GaInN. His work has been published in Advanced Electronic Materials and Compound Semiconductor Magazine. He has conducted over 80 customer discovery interviews with top display manufacturing executives testing and validating SelfArray’s value proposition. Dr. Durniak currently has 4 patents pending.

The SelfArray Advantage

The direct view LED market is inhibited by expensive tri-color SMD LEDs with CAPEX intensive and time consuming manufacturing. The move to inexpensive, un-packaged, chip-on-board (CoB) LED displays is inevitable, and SelfArray’s patented directed self-assembly (DSA) technology is equipped to assemble such LEDs into pixel-arrays quickly and inexpensively.

How it Works

We are developing Directed Self-Assembly (DSA) using diamagnetic levitation. This leads to lightning fast assembly of millions of LEDs into an array. LED dies with a thin layer of pyrolytic graphite are deposited on a vibrating magnetic stage where they quickly orient themselves with the magnetic field. Once oriented, the LEDs can be transferred to the final PCB for bonding in a massively parallel fashion.

High Throughput Manufacturing

Much of the expense associated with a direct view LED display comes from the diode cost as millions of LEDs are required per each display. Small, unpackaged LEDs are cheaper than the traditional SMDs used in direct view LED displays today. However, it requires 3x the assembly time for unpackaged LEDs as red, green and blue dies are required.

This reinforces the need for our incredibly fast DSA approach to manufacturing. SelfArray’s technology is a massively parallel process and completely scalable. With it, manufacturing time becomes insensitive to the number or size of LEDs, the panel size, and pixel pitch.

Inexpensive LEDs

Our technology is perfectly suited for use with discrete, unpackaged LEDs for CoB applications. Without packaging, LEDs can be fed into our system directly after dicing, forgoing packaging costs. Our patent pending sorting technology is set up to quickly and efficiently in large numbers of unpackaged LEDs before self-assembly.

How We Make a Display

The DSA process is repeated three times with red, green, and blue LEDs. After DSA into an oriented array, the LEDs are transferred in parallel to a circuit board and flip-chip bonded. This forms an electrically connected array of R-G-B LEDs that we sell to display manufacturers.

Get in Touch

SelfArray allows for tremendous cost reductions for direct view LED display manufacturers. We have a battle-tested team, a growing IP portfolio and are looking for partners in the display industry.

How can SelfArray help you? Contact us.