All About Circuits

All About Circuits is a leading online platform for electrical engineers, known for its vibrant and independent community. Established in 2004, it began as a simple forum and an open-source textbook. Over time, it has evolved into a bustling hub where engineers come together to collaborate and share their knowledge and skills.

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OKI Reaches New Heights With a 124-Layer PCB

6 days ago | allaboutcircuits.com | Luke James

In a milestone development for high-density electronic packaging, OKI Circuit Technology has introduced a 124-layer printed circuit board (PCB), the highest known commercial stack height for semiconductor testing applications to date. This advancement pushes beyond the long-standing 108-layer ceiling and could signal a new era in substrate design for artificial intelligence, defense, aerospace, and advanced communications technologies. Cross-section of the 124-layer PCB.
Intel and AMD CPUs Prove Interoperable With Marvell’s CXL Portfolio

6 days ago | allaboutcircuits.com | Duane Benson

Marvell Technology recently announced that its Structera CXL platform is interoperable with AMD's EPYC CPUs and Intel's 5th Gen Xeon scalable platforms, marking a significant compute express link (CXL) memory performance feat. Cloud data centers often must deploy servers from multiple processing unit vendors.
‘Cameras Today Are Almost Blind’: Startup Eyeo Provides ‘Perfect Sight’

1 week ago | allaboutcircuits.com | Duane Benson

Startup Eyeo has announced a breakthrough optical waveguide technology that eliminates light-blocking filters on digital image sensors. The company has closed €15 million ($17 million USD) in seed funding to build development kits, expand partnerships, and scale manufacturing for a first commercial product. To learn more about Eyeo and the company’s technology, All About Circuits sat down with Jeroen Hoet, CEO of Eyeo.
EDA Companies Throw Support Behind TSMC’s New A14 Process

1 week ago | allaboutcircuits.com | Luke James

At its recent North America Technology Symposium, TSMC unveiled its next-generation A14 process technology—an ambitious leap beyond the soon-to-be-deployed N2 node. Hot on the heels of this announcement, several EDA companies publicly declared support for the A14 platform, aligning their tools and flows with the foundry’s future-facing roadmap. TSMC will launch A14 production in 2028.
Konrad Zuse and the Z1: The Dawn of Programmable Computing

1 week ago | allaboutcircuits.com | Luke James

Konrad Zuse (1910–1995) was a German civil engineer and pioneering computer scientist who built a series of machines that laid the foundation for the computers we use today. Konrad Zuse. Image used courtesy of Wolfgang Hunscher, Dortmund via Wikimedia Commons (CC BY-SA 3.0)Frustrated by the slow and error-prone manual calculations in his engineering work, Zuse began to imagine a machine that could handle these tasks automatically.
Omnivision Launches 1.5 MP Global Shutter Sensor for Driver Monitoring

1 week ago | allaboutcircuits.com | Arjun Nijhawan

Omnivision has released the OX01N1B image sensor to make in-cabin automotive monitoring systems more cost-effective and energy efficient while improving performance. The OX01N1B is part of the larger Omnivision Nyxel Near Infrared (NIR) automotive sensor family. OX01N1B is the latest introduction to the NIR sensor family. Image used courtesy of OmnivisionOmnivision says the OX01N1B will capture higher-quality images for applications such as driver-awareness monitoring and night vision.
Audio Roundup: The Sweet Sound of Miniaturized, Efficient Audio Devices

1 week ago | allaboutcircuits.com | Aaron Carman

With the goal of improving the efficiency, utility, and performance of audio systems, several companies have recently released new devices to overcome key challenges in the audio electronics industry. While these new products take many forms—from class D amplifiers to solid-state speakers—they provide designers with tools to make audio devices smaller and easier to use. Up first, Novosense recently unveiled a new class D audio amplifier that targets automotive applications.
Happy 40th Birthday to the Arm Architecture

2 weeks ago | allaboutcircuits.com | Luke James

April 2025 marked an important milestone in the computing world: the 40th anniversary of the Arm architecture. From its humble beginnings in a small British lab, Arm has evolved into one of the most influential computing architectures in history. Today, it powers everything from smartphones to supercomputers, impacting industries from mobile to AI, automotive, and beyond. In the early 1980s, Acorn Computers, a small British company, found itself at a crossroads.
NI Connect 2025: Emerson Announces Big Hardware, Software Upgrades to T&M

2 weeks ago | allaboutcircuits.com | Duane Benson

This week is NI Connect (April 28–30, 2025) at the Fort Worth Convention Center, "for the test leaders of tomorrow". NI Connect, organized by Emerson (which acquired NI in 2023), focuses on Emerson’s NI high-performance test and measurement (T&M) systems used throughout all industries. This year, the event will showcase integrated hardware and software T&M systems for increasingly complex products. Emerson NI USB-C CompactDAQ center stage on a lab desk.
JEDEC Officially Releases HBM4 Memory Standard

2 weeks ago | allaboutcircuits.com | Luke James

JEDEC has finalized the JESD270-4 High Bandwidth Memory (HBM4) standard, introducing major upgrades in memory speed, efficiency, and scalability. Developed with input from AMD, Nvidia, Google, Micron, and other industry players, HBM4 addresses current memory limitations in AI, high-performance computing (HPC), and advanced data center applications. SK Hynix shipped the "world’s first 12-layer HBM4 samples" in March 2025.