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APEC 2025 Celebrates its 40th Anniversary in Atlanta |
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At last year's event, Tony O'Gorman was introduced as the APEC 2025 General Chair. Sadly, Tony passed away in May and Aung Thet Tu agreed to carry out Tony's Plans for the conference. Here are a few words from Aung:
As I reported in the previous newsletter, a full two months before registration opened in October, the booth space in the exhibit hall has already sold out. If you missed the opportunity to exhibit, please consider getting on the wait list. Here's a quick rundown of the key APEC elements:
As a PSMA member, you and your company collages are eligible for very attractive Full conference If you haven't already made plans to attend, don't wait any longer. Be sure you have it in your 2025 I hope to see you in Atlanta, March 16-20, 2025
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Remembering Arnold Alderman (October 26, 1939 - October |
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Highlights of Arnold's service to PSMA over 28 years:
Additionally:
From Brian: Speaking from a personal perspective, Arnold was one of the finest human beings I have ever known. Not just as a professional colleague, but as someone that truly set the bar for what is meant by giving to, and supporting others, with absolutely no personal gain to be had. He was the eternal optimist with a smile and boisterous laugh in the face of even the direst scenarios, and taught me there is ALWAYS a brighter side and an optimistic path forward to forge. Furthermore, no one exemplified giving and paying it forward like Arnold…another core principle that I gleamed a small part of from him and have/will always carry forward in my own endeavors. On that lighter note, it made me smile to know he passed just beyond midnight ET, which means he officially died on Energy Efficiency Day (https://energyefficiencyday.org/) in the US. I was told this also made the family chuckle when they learned this factoid. I can state without reserve that Arnold's contributions have made PSMA, our industry, and me (by association) all much better for having been fortunate enough to engage with him. From Ada: Given Arnold Alderman's passion, character, and drive, I am honored to partner on each of the Anagenesis' PwrSoC & PSiP market reports and other projects. He set high standards in all his projects and in doing business. He was more willing to give rather than hold back despite his busy schedule. Furthermore, he was a strong advocate for PSMA. He is definitely missed. If you would like to leave a note or comment, consider posting here: https://www.linkedin.com/ Contributed by Ada Cheng & Brian Zahnstecher Arnold's official obituary is as follows –
"Arnold Neil Alderman, 84, of Wickenburg, AZ, passed away on October 1, 2024. He was born on October 26, 1939, in Pittsfield, MA, to Carlton Alston Alderman and Susan Almira Towne. Arnold grew up in Hancock, Massachusetts, and went on to earn a Bachelor of Science from Northeastern University and an MBA from the University of New Haven. He married Lucie Alderman in 1962 in Vermont. Arnold began his career as an electrical engineer, living all over the country wherever his work took him. As his family grew, he set down roots in Milford, CT, where he worked designing early induction heating prototypes and had his name on several patents. During this time, he received his MBA and embarked on a new chapter of his career in marketing semiconductors on the West Coast. Arnold also created his consulting business, Anagenesis, which he continued to run right up until his passing. Arnold had many hobbies and interests, including playing guitar, sailing, trains, and dancing. He was actively involved in AA, PSMA, served as a Town of Wickenburg Commissioner, and was a member of the Community Alliance Church. Arnold will be remembered for making friends wherever he went, his open, welcoming personality, helpfulness, big smile, the courtesy he extended to others, and his generosity of time and spirit. He is survived by his children, Kendall Alderman (Anne-Marie), Zefora Alderman (Dawn), and Kimberly Legler (Ryan); and his siblings, Sally McAllister, Mary Pierce, George Maston, Michael Maston, Nora Mullen, and Phyllis Gould. Additionally, he is survived by his four grandchildren: Emily Alderman, Katie Alderman-Cane (Christopher) Alderman, and Nico Alderman."
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Message from the PSMA |
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Background: Before we dive into each finalist, here is a short description on why PSMA created this award in the first place. The Global Energy Efficiency Award is to inspire electrical system designers and manufacturers to explore new technologies, architectures, and components for better energy efficiency. The award casts a spotlight on these successful efforts for us to celebrate. Finalists:
Congratulations again to all three of our finalists! Based on their respective system designs, it's clear that whoever is chosen as the winner, it will not have been an easy decision for the judges! We hope that these finaliists have inspired others to improve their electrical energy efficiency too! Provided by David Chen
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PSMA Planning Meeting | ||||||||
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The second session, held on October 25, started with presentations by the PSMA Executive Committee. Trifon Liakopoulos started with the Chair report, giving his vision of where PSMA is heading over the next five years. Tim McDonald followed that with a six quarter financial forecast. One of the things Tim emphasized was that the decisions to conduct the Packaging and Magnetics Committee Special Report, combined with the investment in the Marketing Project will cause PSMA to operate at a deficit over the next year, with revenues going up and expenses down after that. As a result, any new special projects proposals will have to include a source of funding in order to be approved. David Chen then ended the Executive Committee portion of the meeting by covering the Key Performance Indicators that PSMA is tracking. David said he would like to see PSMA start tracking committee-specific KPIs and asked all committee chairs to think of metrics that can be tracked. After the Executive Committee presentations there was a report from Dhaval Dalal and Conor Quinn on the Power Technology Roadmap (PTR). The next PTR is scheduled for release at APEC 2025, after which Dhaval and Conor plan on stepping down as PTR chairs. New leadership is needed to take over this key PSMA initiative. In addition, Dhaval and Conor would like to see the PTR format be updated to be more in line with modern trends, including making more content available online and having more dynamic content which can be updated more frequently than the current three year cycle. Chris Whaling then presented on the PSMA Marketing Project. He talked about the need to refresh our website to be more modern looking and making it easier for people to find what they are looking to access. He also talked about updating our mission statement to better align with what PSMA is currently doing and where it wants to go. He emphasized that the goal of the Marketing Project is to increase PSMA's visibility which will lead to increased membership and increased revenue. After the Marketing Project presentation, the attendees then had an open discussion to talk about how to prioritize the goals of all the committees as well as the bigger projects (such as the PTR update and the Marketing Project). The discussion was lively and many different people contributed ideas and thoughts.
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PSMA Magnetics Committee and PELS TC2 High Frequency | ||||||||
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Power Magnetics @ High Frequency
The purpose and focus of the workshop are to identify the latest improvements in magnetic materials, coil (winding) design, construction and fabrication, evaluation and characterization techniques and modelling and simulation tools. The Workshop will target the advancements deemed necessary for power magnetics to meet the technical expectations and requirements of new and evolving market applications. These are driven by higher operating frequencies and emerging topologies together with continuous advances in circuits topologies and semiconductor devices. The target audiences for the 2025 Power Magnetics @ High Frequency Workshop include the designers of power magnetic components for use in electronic power converters, those who are responsible to implement the most technologically advanced power magnetic components necessary to achieve higher power densities, specific physical aspect ratios such as low profile, higher power efficiencies and improved thermal performance. The target audiences also include people involved in the supply chain for the power magnetics industry ranging from manufacturers of magnetic materials and structures, fabricators of magnetic components, providers of modelling and simulation software as well as manufacturers of test and characterization equipment. The theme of the 2025 Power Magnetics @ High Frequency will be integrated magnetics, defined as magnetic structures that perform two or more functions. The workshop will open with a keynote presentation by Minjie Chen of Princeton providing an overview of advances in the physical structures and fabrication of magnetic devices for power applications over the past ten years. The morning session will consist of lecture presentations by Ranajit Sai of Tyndall discussing trends of magnetic designs for 2.5D and 3D packaging. Jens Kehl of Wurth Elektronik will address advances in inductive components fabricated on 300 mm silicon substrate wafers, Sebastian Bachman of Tridelta Weichferrite will address industry transitions relative to processing and shaping magnetic cores and John Mcdonal of Atlas magnetics will discuss a new generation of magnetics for improving performance of Power Supply in Package (PSiP) devices. During lunch, breakfast, and the networking hour at the end of the workshop there will be an interactive session of tabletop technology demonstrations, each addressing specific technical disciplines and capabilities consistent with the workshop agenda. Workshop attendees typically spend ten to fifteen minutes at each technology demonstration station viewing informal interactive presentations. The technology demonstration format facilitates Interaction between the attendees and the presenters as a segue from the morning technical presentation sessions to the afternoon lecture presentation session. Technology demonstrations are confirmed by JC Sun of Bs&T, Akihiko Saito of Daido Steel, Kosuke Yuasa of Daido Steel, Mike Arasim of Fair Rite, Wilmar Martinez of KU Leuven, Lukas Mueller of Micrometals, Alfonso Martinez of Open Magnetics, Kevin Hermanns of PE Systems, Andres Arias and Risha Yu of Premier Magnetics, Jun Wang of the University of Bristol and Efran Bernal of Wurth Elektronik. We still have room for additional technology demonstrations. If anyone is interested to present a technology demonstration, we encourage them to contact the workshop organizing committee via e-mail to power@psma.com. The afternoon session will begin with a keynote presentation by Charles Sullivan of Dartmouth addressing trends of electrical requirements, modelling and simulation of magnetic components over the past ten years. The keynote presentation will be followed by lecture presentations by Mike Ranjram of Arizona State University addressing recent advances of Variable-Inverter-Rectifier-Transformer (VIRT) hybrid electronics, Alfonso Martinez of Wurth Elektronik addressing simulation techniques for integrated magnetic functions and Michael Freitag of Yageo addressing the impact of using nanocrystalline powder core material on the design of inductors for TLVR applications. Registration for the workshop is limited and is open at the following URL: https://psma.com/power-magnetics-high-frequency-workshop-2025-registration Any company interested in financially supporting the workshop as a partner can find more information regarding partner opportunities and benefits at the following URL: https://www.psma.com/2025_workshop_partnership Should contact the organizing committee through PSMA via e-mail to power@psma.com. The agenda for the 2025 Power Magnetics @ High Frequency is available on the PSMA website at the following URL: https://psma.com/2025_Power_Magnetics_at_High_Frequency_Agenda
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PSMA Welcomes You to Attend 3D-PEIM | ||||||||||
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REGISTRATION NOW OPEN PSMA cordially invites you to attend 3D-PEIM 2025!
The Symposium will be held July 8–10, 2025 by the world-renowned National Renewable Energy Laboratory in Golden, Colorado, USA. NREL is the U.S. Department of Energy's only national laboratory dedicated solely to energy efficiency and renewable energy. Created and supported by the PSMA's Packaging & Manufacturing Committee, 3D-PEIM will feature invited papers highlighted by plenary and keynote addresses and contributed presentations by industry and academia experts. There will be Exhibits and an Exhibit Sponsor's Session. Ample opportunities will be provided to network with attendees, speakers and exhibitors. The program is comprised of 9 Technical Sessions and will feature 3 days of in-person laboratory tours of NREL's power electronics and energy systems research facilities. Plenary Speakers Dr. Harsha Nanjundaswamy, BorgWarner: Beyond 2030: Powering the E-Powertrain with High-Value and High-Efficiency Power Conversion Systems—A BorgWarner Perspective Dr. Devan Iyer, IPC: Advanced Packaging to System Integration—Trends and Challenges Dr. Subramanian Iyer, University of California Los Angeles: The Power Delivery and Energy Storage Challenge in Advanced Packaging. Program at a Glance
Dr. Faisal Khan (NREL) is 3D-PEIM's General Chair. Dr. Sreekant Narumanchi (NREL) and Dr. Registration opens in early February at 3D-PEIM.org You are cordially invited to sign up for Partnership Tabletop Exhibit Opportunities!
Media Sponsors:
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Subsea Power: the challenges in powering today's and |
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Subsea power architecture Most commonly, seafloor installations are powered from the shore or a platform via long-distance high-voltage transmission cables to floating or submerged transformation stations. Here, the voltage is stepped down locally to AC or DC within the range of 300 to 900VAC or 400 to 1500VDC to power local equipment and ultimately, lower DC voltages for the final application. This appears to be a standard approach just as it is for power grids and electronics equipment in industrial applications on terra firma. However, when the final equipment is located on the seabed and dealing with oil, gas or sensitive equipments, the level of quality and safety requirements are significantly higher.
The subsea power grid contains components such as switchgear, step-down transformers, energy distribution, and monitoring and control equipment serving several equipments such as pumps, compressors, water-injection systems and safety controllers. For efficiency and safety, the power components can be installed on a common base frame on the seabed (Figure 01) and interconnected through application specific connectors able to handle low voltage for signal use, and high voltage for power supplies, and able to sustain hydrostatic pressure and under-water connections. Also, for safety reasons and to guarantee uninterrupted operation, the local grid is secured by Uninterruptible Power Supplies (UPS), which could also be located on seabed. All components within the grid are retrievable and are designed and constructed for normal and incidental operation. But because they are often deployed at depths below which humans can operate, they might require remotely operated vehicle (ROV) intervention and been designed in consequence. What's unique about subsea power supplies? Subsea power supplies are classified in two major categories:
Embedded Power Supply Unit (E-PSU) at a glance. Power electronics designers dealing with subsea power supplies often describe their job as: "Designing a highly rugged power supply with extreme reliability and intelligence for one of the most hostile environments on Earth where failure is not an option." This is a good summary of the challenges faced by designers when developing power solutions that will be operated in deep seas where most of the time humans cannot access other than by using ROVs. As mentioned in the introduction, the range of subsea applications is large, and depending on which segment the power supply will address, different standards and best practices apply, but for all of them there is a common approach to perform risk analysis to properly assess the technology and operational safety. In cooperation with the equipment manufacturer, the electrical load calculation is one of the earliest tasks during the electrical power system design that needs to be considered. Engineers should estimate the required electrical load of all the subsea elements that will consume the electricity so that they can select an adequate power supply. Each local load may be classified into several different categories, for example, vital, essential, and nonessential:
Depending on the final equipment and the level of risk, different technologies might be considered such as a redundant power solution, automatic load balancing or an emergency power resource switching to UPS. In all cases the power supplies must be able to communicate with the central monitoring system, where using the latest evolution of digital control and predictive algorithms, high levels of operational safety are achieved.
As certain parts of subsea oil and gas equipments migrate from full hydraulic operation to hybrid - for example motorized valves that electronically monitor and control - power supplies are required to be integrated within the pressurized cylinder. Also, when designing power supplies for transmission cables, e.g., signal repeaters, because space is critical, power designers must consider the volume available to shape the power supply in order to fit into the final application (Figure 02). Due to the compacity and high level of integration, another important point to take into consideration when designing a power supply for subsea operation is the electromagnetic compatibility within the embedded system. Extensive interoperability tests are performed during the design of the final equipment and sometimes this could require the adoption of a different topology e.g., multiphase with active phase-shifting to reduce EMI interference.
In subsea applications it goes without saying that lifetime and reliability are very important. Power supplies must be designed with a high safety margin and with the lowest possible amount of stress - electrical and thermal - on every component (Figure 03). The selection of components is an important part of the design that might influence the choice of the topology and building practices. One example is the choice of the preferred switching transistors with a baseplate to facilitate conduction cooling.
Design considerations for different standards. Most power supply designers are used to common standards for industrial, medical, transportation or defense applications, but when dealing with specific areas such as subsea oil and gas applications they must consider specific standards such as the one established by the American Petroleum Institute (API). As shown in Figure 04, the standard covers a number of specific areas and power supplies to meet different sections of the Standard for Subsea Production and Processing Control Systems (API 17F). This standard includes specific tests as well as communication protocols. As well, with regards to subsea connectors we listed two of the ISO-13628 types. These provide the general requirements and overall recommendations for the development of complete subsea production systems, from the design phase to decommissioning and abandonment. This standard is not only for connectors and is often used in complement to the API. Sustainable power to subsea applications. Most subsea applications are powered from the shore through long distance power cables, or a platform via high voltage transmission cables often 10-100 kms, but there are several applications that require remote power solutions. Conventionally a vessel or floating platform with traditional power generators can be located above the field, but when considering the environment and sustainability this is not optimal, and accordingly the subsea engineering community has begun to consider alternative options.
Amongst many projects around the world, the Renewables for Subsea Power (RSP) project is one of the most interesting and promising. In answer to the question: How can green technologies be combined to provide reliable and continuous low carbon power and communications to subsea equipment, offering a cost-effective future alternative to umbilical cables? Scottish ocean energy pioneers Mocean Energy (who developed Blue X, a 20m-long, 38t, 10kW, wave energy converter machine (Figure 05)) and a group of partners specialized in subsea energy storage and energy management developed a business case which combines wave power, solar with energy storage to power subsea equipment for oil and gas projects (Figure 06).RSP test and evaluation process has now completed and are ready for commercial deployment. This is very good example demonstrating that wave energy combined with solar-power capability and battery technologies can offer a reliable and cost-effective alternative to costly umbilical cables for subsea applications.
In conclusion: Subsea power electronics is often considered as a niche industry but for a power designer developing power solutions for deep sea it is a great opportunity to learn about a very interesting range of applications that require advanced technology, extreme reliability and true innovation. That, combined with new ideas such as Renewables for Subsea Power (RSP) make our job very exciting and motivating, pushing the limits of our power supplies for even deeper explorations.
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Breakthrough In Dynamic RDS(ON) Is Making 1200-V E-Mode GaN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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These advantages have led to a rapidly growing demand for GaN-on-Si switches in various power applications, such as electric vehicle (EV) chargers and traction inverters; renewable energy systems; and consumer, server, telecom and industrial power supplies. The market has witnessed the successful adoption of GaN-on-Si FETs (with voltage ratings up to 650 V) especially in consumer electronics, providing a strong foundation of confidence for the reliable deployment of higher-voltage GaN devices in more demanding power applications. Automotive Industry: A Catalyst For 1200-V GaN FETs The automotive industry, especially with the rise of EVs, is a primary driver for 1200-V GaN technology. As EV manufacturers transition towards higher-voltage systems (like 800-V batteries), there is a growing requirement for power conversion devices that can handle these voltages efficiently and cost effectively. There are a few other major power semiconductor companies developing 1200-V GaN FETs using the cascode structure or GaN-on-sapphire technology. However, the cascode structure will sacrifice the GaN transistor's fast-switching capability and induce additional parasitics while sapphire substrates have much worse thermal conductivity than silicon that make them unsuitable for high-power applications. E-mode GaN-on-Si FETs are still particularly advantageous due to their reduced costs, enhanced efficiency, and higher power density, which are essential for onboard chargers, dc-dc converters, and drive inverters in EVs. The efficiency gains from using GaN FETs can lead to extended vehicle range and reduced charging times, making EVs more appealing to consumers. GaN-On-Si Challenges: Vertical Leakage And Current Collapse However, developers of GaN-on-Si technology have found it challenging to further increase the breakdown above 1 kV, due to the low critical electric field of the silicon substrate and high defect density in the epitaxial GaN buffer. GaNPower (GPI) has pioneered advancements by limiting vertical leakage of substrate and buffer layers to achieve up to 1500-V breakdown voltages for e-mode GaN-on-Si FETs (see the reference). However, another challenge remains: maintaining excellent switching performance at high bus voltages. Effective switching, crucial at bus voltages of 800 V or higher, requires the dynamic drain-source on-resistance (RDS(ON)) to stay close to its static value. Industry and academic studies have indicated dynamic RDS(ON) dispersion and current collapse occur in GaN FETs under high-voltage operation, especially when blocking voltages surpass 700 V. This complicates high-voltage and high-current applications, such as in EV motor drives, due to the increased device heating and efficiency losses. This increase in dynamic RDS(ON) is due to defects and traps in the GaN/AlGaN epi-layers grown on silicon or sapphire substrates, forming a virtual-gate that interacts with conduction electrons, preventing full channel activation. Integrating All-GaN-IC For Improved Dynamic Performance GaNPower has addressed these issues in its third-generation 1200-V technology by developing an innovative all-GaN-IC technique (patent pending). A proprietary GaN-based gate regulating circuit has been monolithically integrated with the power GaN FETs in a single chip, in order to mitigate the effects of these defects and traps. Combined with a previous advanced packaging solution (see the reference), this all-GaN-IC innovation significantly enhances the dynamic switching performance under high-voltage operation (800 V or higher) without considerably compromising the breakdown voltage, which makes cost-effective single-chip 1200-V e-mode GaN-on-Si FETs viable. GaNPower recently demonstrated robust dynamic switching performance in its third-generation 1200-V 20-A GaN FET across a wide bus voltage range (up to 1 kV), handling a switching current of 20 A. According to the typical Id-Vg and off-state Id-Vd curves shown in Fig. 1, the gate threshold voltage has been enhanced to 2.7 V while the good breakdown characteristics were preserved.
Demonstrating Dynamic Performance Of Monolithic 1200V GaN-On-Si FETs A customized DPT (double-pulse testing) platform, as shown in Fig. 2a equipped with a reliable voltage clamp circuit for accurate dynamic RDS(ON) measurement, was used to evaluate the burst-mode dynamic switching performance of GPI's third-generation 1200-V 20-A GaN FETs. With 12-V PWM input, 1-kV bus voltage, and up to 23-A drain current, all the switching waveforms, as shown in Fig. 2b, are quite clean without considerable ringing or overshoots.
The dynamic RDS(ON) values under various voltages (400 to 800 V) at the device's rated current (20 A) have been extracted and summarized in Fig. 3a. A less than 10% increase in the RDS(ON) from 400-V to 800-V bus voltage demonstrates a successful mitigation of dynamic RDS(ON) dispersion.
A customized half-bridge buck testing platform with a high-saturation toroidal power inductor and a constant 128-Ω high-power resistor load, as shown in Fig. 4a, was built for the continuous hard-switched evaluation. Two GPI third-generation 1200-V 20-A GaN FETs with suitable heat sinks were installed on the main test board and proper fan cooling was used during the tests. With a 100-kHz switching frequency, 12-V PWM input and 800-V bus voltage, the buck converter achieved a peak efficiency of 96.34% at a maximum power input of 1 kW (limited by lab equipment). Fig. 4b demonstrated good continuous hard-switching waveforms without substantial ringing and overshoot at an 800-V bus voltage.
The Path Forward For 1200-V E-Mode GaN FETs More rigorous reliability qualification testing on a large scale of GPI's 1200-V 20-A GaN FETs is in progress to make sure the third-generation 1200-V technology is reliable and optimized in practical industry applications. However, results obtained to date confirm that GaNPower's third-generation 1200-V technology, integrating advanced packaging with the all-GaN-IC technique, considerably enhances the breakdown voltage of e-mode GaN-on-Si FETs while preserving good dynamic switching performance under high-voltage operation (800 V or higher). Engineering samples of GPI's 1200-V, 20-A GaN FETs in a TO247-4 package are now available for selected customers to evaluate in their applications. References "Packaging for Lateral High Voltage GaN Power Devices," U.S. Patent 11,107,755 B2, Li et al. The article "Breakthrough In Dynamic RDS(ON) Is Making 1200-V E-Mode GaN FETs Viable" by Daniel Wan and Simon Li, GaNPower International, Vancouver, B.C., Canada was originally published in the October 2024 issue of How2Power Today: https://www.how2power.com/pdf_view.php?url=/newsletters/2410/H2PToday2410_commentary_GaNPowerIntl.pdf About The Authors
Simon (Zhanming) Li is the key founder and CEO of GaNPower International where he leads a team of experienced scientist and application engineers focusing on development of high-voltage GaN for industry applications. Simon has coauthored two books on semiconductor TCAD and design as well as having about 150 academic papers, patents and patent applications to his credit. He holds a Ph.D. from the University of British Columbia. Simon can be reached at simon@iganpower.com. For more on SiC & GaN technology, see How2Power's Silicon Carbide and Gallium Nitride Power Technology section. |
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| Events of Interest - Mark Your Calendar |
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Bali
Indonesia
Anaheim Convention Center
Anaheim, CA
College Station, Texas
Georgia World Conference Center
Atlanta, GA
East Sarajevo
Bosnia and Herzegovina
Paris
France
Tuscaloosa, AL
Urbana, Illinois
Los Angeles, California
Montreal, Quebec
Canada
Changsha
China
Houston, Texas
Kumamoto
Japan
Tallinn
Estonia
Turin
Italy
Jatni
India
Knoxville, Tennessee
St. Catharines, Ontario
Canada
Nanjing
China
Targoviste
Romania
Jaipur
India
Coimbatore
India
Oslo
Norway
Grapevine, TX
Birmingham
United Kingdom
Birmingham
United Kingdom
Kota Kinabalu Sabah
Malaysia
Bordeaux
France
Philadelphia, Pennsylvania
Bilisim Vadisi (IT Valley) Gebze
Turkey
Aswan
Egypt
San Antonio, Texas
Nagasaki
Japan
Vienna
Austria
Vancouver, British Columbia
Canada
New Orleans, Louisiana
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If you or anyone in your company is interested in getting on the distribution list for future issues of PSMA UPDATE, please send e-mail to: power@psma.com. Be sure to include your name and
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reparations for APEC 2025, in Atlanta next March, are now nearly completed. To celebrate our 40th anniversary, we will have a large wall poster of APEC history where attendees will be encouraged to share your APEC memories. We also plan to have a special Wednesday Night Social event commemorating APEC's important milestone. 
t is with a very heavy heart PSMA shares the news of Arnold Alderman's passing, reportedly to be just after 10 pm MT on Tue, Oct 1, 2024. His family and friends were by his side as he passed peacefully in his sleep. A service to celebrate his life was held Tue, Oct 8 at the Community Alliance Church in his adopted hometown of Wickenburg, AZ. PSMA's presence at the service and contributed floral arrangement to honor Arnold are pictured below to complement that special smile of his above.
hile we eagerly await the announcement of the winner for 
ue to Hurricane Helene, the scheduled in-person PSMA planning meeting had to switch to a virtual format and was held over two days (October 3 and October 25). The first session focused on the PSMA Committee reports. All committees gave a brief presentation outlining their plans for the next year. Although the meeting was virtual there was a good deal of Q&A and interaction between the presenters and the rest of the attendees. 
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D-PEIM provides the opportunity to explore the latest advancements in 3D power electronics integration and manufacturing, with a strong focus on technologies to increase the density and performance of power solutions. Technical sessions will focus on advanced artificial intelligence and machine learning for modeling, converter integration and manufacturing, thermal management, reliability, module integration and manufacturing, materials, and
passive components.
leaned from the news and political debates, we are all aware that a significant number of offshore locations around the world are home to oil and gas fields. But the range and scope of subsea applications is much more than just those concerning oil and gas. From intercontinental communication cables making the WWW operate smoothly around the globe to deep-sea earthquake detection stations there are equipments installed on the seabed at depths of up to 4,000 meters (13,000 feet) and at pressures of up to 400 bar (5.816 psi), requiring safe and reliable power sources. So, in such highly demanding applications what factors does the power electronics engineer need to consider when designing power solutions?
-mode GaN-on-Si FETs, with their low on-state resistance and fast switching capabilities, have emerged as promising candidates for the next-generation power switches. Compared with SiC MOSFETs, GaN-on-Si switches offer much lower substrate and manufacturing costs, due to their perfect compatibility with the well-developed silicon CMOS technology, which has been further leveraged by the recent success of Infineon's 300-mm GaN-on-Si technology.
