About Alex

Efficient Power Conversion (EPC) CEO and Co-Founder Inducted into the ISPSD Hall of Fame 2019


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Alex Lidow Inducted into the ISPSD Hall of Fame 2019

El Segundo, Calif. – May 2019 – Efficient Power Conversion (EPC) Corporation proudly announces that Dr. Alex Lidow, CEO and co-founder, is inducted into the ISPSD Hall of Fame 2019. This prestigious honor is bestowed upon an honored contributor to advancing power semiconductor technology and sustaining the success of ISPSD. This Hall of Fame award was announced on May 20th, 2019 at 31st IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) 2019 at the Marriott Parkview Hotel, Shanghai, China.

On thanking the ISPSD committee regarding his induction, Dr. Lidow said, “This is a great honor. I share this honor with Tom Herman, with whom I undertook the foundational work on the power MOSFET, and with my co-founders at EPC, Joe Cao and Bob Beach, who had the courage to join me on our mission to develop gallium nitride power devices to crush silicon. I look forward to continue working with our customers who are innovating new designs with GaN.”

Dr. John Shen, advisory committee chair said, “We are very pleased to have Alex inducted into the Hall of Fame this year. Contributions to our semiconductor industry have been most important in furthering our betterment of the whole world, as well as changing the way we live. We will continue to achieve further contributions, only through our inductees’ unremitting efforts in innovating and contributing to power semiconductor technology, which is indispensable in our daily lives.”


ISPSD is the premier forum for technical discussions in all areas of power semiconductor. The conference rotates on a four-year cycle across the world. ISPSD brings together the world’s foremost experts and leading companies on power devices and integrated circuit technology. Since the first meeting held in Tokyo in 1988, ISPSD has become the premier international forum for technical discussions in all aspects of power semiconductor devices and integrated circuits.

About EPC

EPC is the leader in enhancement mode gallium nitride based power management devices. EPC was the first to introduce enhancement-mode gallium-nitride-on-silicon (eGaN) FETs and integrated circuits as power MOSFET replacements in applications such as DC-DC converterswireless power transferenvelope trackingautomotivepower invertersremote imaging and sensing technology (Lidar), and Class-D audio amplifiers with device performance many times greater than the best silicon power MOSFETs. EPC also has a growing portfolio of eGaN-based integrated circuits that provide even greater space, energy, and cost efficiency.

eGaN is a registered trademark of Efficient Power Conversion Corporation, Inc.


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GaN on Silicon Devices: How to Dislodge Silicon-Based Power MOSFETs


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Alex Lidow’s Quest To Replace Silicon And Revolutionize Electronics


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Alex Quest






A Series of Forbes Insights Profiles of Thought Leaders Changing the Business Landscape: Alex Lidow, Founder and CEO, Efficient Power Conversion

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60 most influential people driving the self-driving movement


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– Automotive News, December 19, 2016 – Alex has been chosen as 1 of 60 people driving the self-driving movment



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Four Ways GaN Technology Helps Save the Planet


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Gallium nitride (GaN) is a better semiconductor than silicon.  There are many crystals that are better than silicon, but the problem has always been that they are far too expensive to be used in every application where silicon is used. But, GaN can be grown as an inexpensive thin layer on top of a standard silicon wafer enabling devices that are faster, smaller, more efficient, and less costly than their aging silicon counterparts.

This breakthrough for growing GaN on silicon can be viewed as a means for the extension of Moore’s Law, a “law” that has run out of steam in the past few years due to the performance limitations of silicon.  However, just classifying it as an extension of Moore’s Law is proving to be too narrow a view of the impact of GaN technology on the way we live.  In fact, GaN is proving to play a key role in a radical shift in how we allocate our planet’s precious, and dwindling, resources.  Let’s look at four ways GaN — in end-use applications — is helping us be kinder and gentler on our planet.


Autonomous vehicles and the transportation revolution

Figure 1: GaN provides faster and more accurate LiDAR images than silicon

Figure 1: GaN provides faster and more accurate LiDAR images than silicon


LiDAR (Light Detection and Ranging) as a way to measure the distance between two objects has been around for over 50 years.  The way this technology works is that the LiDAR system flashes a beam of light and measures the time it takes for that beam to bounce off a distant object and return to the detector sitting next to the original light source.

LiDAR has become a core technology behind autonomous vehicles because it can provide a fast (virtually instantaneous) and extremely accurate 3D image (or three-dimensional point cloud) of the surrounding environment (see figure 1).  The reason LiDAR can paint such a fast and accurate image is that the lasers are “fired” by GaN transistors and integrated circuits.  The speed and accuracy at which GaN can fire the laser is fast enough to create high-resolution images needed for the fastest autonomous racecars.

Autonomous vehicles will become a reality, although the exact timeline is still uncertain.  When this happens, imagine the impact it will have on our entire transportation system and the urban landscape.  Individual car ownership will be a thing of the past, since we will be able to order a driverless car for the number of passengers and the range needed at that moment.  Parking lots will disappear, road congestion will be reduced, and, most significantly, traffic deaths will be eliminated.

In addition, the cost to the consumer for vehicle transportation will be significantly lower as less capital will need to be invested in a vehicle, and fewer taxes will have to be paid for transportation infrastructure.  We can assume that the majority of these autonomous vehicles will be electric, thus further reducing the stress on energy consumption, air quality and greenhouse gas emission.


Drone package delivery and the logistics revolution

Another type of autonomous vehicle that will reduce stress on our environment is the drone. As with autonomous vehicles, GaN-based LiDAR is key to autonomy with drones, but drones have a different challenge; they have limited range when powered by batteries.  Imagine the amount of traffic that would be reduced if all our small packages were to be delivered by drones.  This is not a dream – it is now possible, thanks to the ability to charge drones in mid-air using wireless power transfer.

Figure 2: Drone being charges from a small antenna driven by GaN transistors

Figure 2: Drone being charges from a small antenna driven by GaN transistors

Shown in figure 2 is a drone being charged from a small antenna driven by GaN transistors.  These low-cost and light weight charging platforms could be mounted on every street light, thus enabling drones to recharge as needed while on their package delivery missions.  These antennae can also be fitted with a battery pack and a solar panel.  In this configuration they can create long-distance trails of autonomous charging stations that could give access to the most remote and dangerous locations on our planet for critical deliveries of food or medical supplies.

Eliminating power cords

Wireless recharging of drones is just one example of our ability to transfer energy without wires thanks to the speed and efficiency of GaN.  On a broader scale, we are on the verge of eliminating power cords in the home using a technology called resonant magnetic energy transfer.  This technology was invented at MIT earlier this century and serves as the means for “cutting the cord” and freeing the home and work environment from messy power cords.

In figure 3 is a desktop that has been built with a low cost antenna just under the top surface.  Using GaN integrated circuits to achieve efficiencies similar to devices with power cords, this desktop is able to directly power an array of diverse electronic devices positioned anywhere on the surface.

Figure 3: Desktop built with low cost antenna under the top surface to wirelessly power devices placed on it.

Figure 3: Desktop built with low cost antenna under the top surface to wirelessly power devices placed on it.

Imagine this type of powered tabletop in your kitchen, or in the conference room at work, or in your living room powering your sound system and TV without wires.  A world without power cords would be more efficient – TVs, radios and illuminated artwork could be hung anywhere on the wall without the need for wall sockets and unsightly power cords. In addition, not having to “plug in” would eliminate countless electrical fires that destroy many homes and lives each year.

Making artificial intelligence and deep learning less harmful to our environment

We are experiencing a fast escalation of the demand for massive server installations to support big data, cloud computing, deep learning, and artificial intelligence.  According to Fujitsu, data center energy consumption accounts for up to 2% of all electricity use worldwide.  Even though there is no way the demand for computing ability can be reversed, computing can be made less costly to our environment by reducing the need for energy, and here is another major contribution of GaN technology.

Due to GaN’s high efficiency, we can contribute to the Open Compute energy consumption goal by saving between 10 and 20% of the energy used by data center server farms.  Additionally, significant energy savings can be harvested from the reduced need for cooling of these massive server installations.  Now, all we have to worry about is whether the computers will be smarter than humans!

Figure 4: GaN reduces the energy needed to run data centers, which are expanding rapidly due to the increasing demand for computing power

Figure 4: GaN reduces the energy needed to run data centers, which are expanding rapidly due to the increasing demand for computing power

GaN technology is enabling many new applications that were just not possible with silicon semiconductors.  Given above are just a few examples of how GaN technology is changing the way we live.  Efficient Power Conversion (EPC) was founded based on the goal of replacing silicon semiconductors with a technology that is far more efficient and lower cost to produce.  As it turns out, GaN is doing so much more than just saving money by replacing aging silicon components, GaN is enabling new applications that significantly reduce the resources we need to drain from our planet while making our lives safer, healthier, and more fun.


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