Alphawave Semi pioneers 3nm UCIe IP, revolutionizing with TSMC CoWoS packaging.


July 30, 2024 by our News Team

Alphawave Semi has made a major breakthrough in chip technology, developing a highly configurable subsystem with advanced packaging technology that enables faster data transfer and improved performance.

  • Improved technology infrastructure: Alphawave Semi's breakthrough allows for higher speeds and lower power consumption in our technology infrastructure, benefiting hyperscalers, high-performance computing, and artificial intelligence.
  • Compatibility with multiple protocols: The UCIe subsystem IP can seamlessly work with a variety of chipsets, creating a cohesive chiplet ecosystem.
  • Enhanced robustness: The system includes live per-lane health monitoring, making it more reliable and less prone to errors.


Alphawave Semi, the global leader in high-speed connectivity and compute silicon, has just made a major breakthrough in the world of chip technology. They have successfully launched the industry’s first 3 nm silicon bring-up of Universal chiplet Interconnect Express (UCIe) Die-to-Die (D2D) IP with TSMC’s Chip-on-Wafer-on-Substrate (CoWoS) advanced packaging technology.

Now, I know that might sound like a lot of technical jargon, so let me break it down for you. Alphawave Semi has developed a system that allows different chips to communicate with each other more efficiently. This is a big deal because it means that our technology infrastructure, from hyperscalers to high-performance computing and artificial intelligence, can operate at higher speeds and with less power consumption.

The key to this breakthrough lies in the advanced packaging technology developed by TSMC. Using their CoWoS 2.5D silicon-interposer-based packaging, Alphawave Semi has created a fully integrated and highly configurable subsystem that provides an impressive 8 Tbps/mm bandwidth density. In simpler terms, this means that data can be transferred between chips at an incredibly fast rate, resulting in improved performance and reduced Latency.

One of the most exciting aspects of this new system is its compatibility with multiple protocols. It can support streaming, PCIe, CXL, AXI-4, AXI-S, CXS, and CHI, which means that it can work seamlessly with a wide range of chipsets. This interoperability is crucial for creating a cohesive chiplet ecosystem, where different chips can work together seamlessly.

But it doesn’t stop there. Alphawave Semi’s UCIe subsystem IP also includes live per-lane health monitoring, which enhances the system’s robustness. This means that the system can monitor the health of each individual lane, making it more reliable and less prone to errors.

Mohit Gupta, Alphawave Semi’s SVP and GM, Custom Silicon and IP, couldn’t contain his excitement about this achievement. He called it a “significant milestone” for the company and praised their expertise in utilizing TSMC’s 3DFabric ecosystem to deliver top-tier connectivity solutions. Gupta also stated that this IP sets “a new benchmark in high-performance connectivity solutions.”

To ensure that their IP meets the highest standards, Alphawave Semi’s UCIe subsystem IP complies with the latest UCIe Specification Rev 1.1. It also includes comprehensive testability and de-bug features such as JTAG, BIST, DFT, and Known Good Die (KGD) capabilities. These features enable easier testing and debugging of the system, ensuring that it performs flawlessly.

In conclusion, Alphawave Semi’s breakthrough in chip technology is a game-changer for the industry. Their innovative UCIe subsystem IP, developed in collaboration with TSMC, opens up new possibilities for high-speed connectivity and compute silicon. With its impressive bandwidth density, compatibility with multiple protocols, and enhanced robustness, this system is set to revolutionize our technology infrastructure. So, get ready for faster, more efficient, and more powerful devices in the near future.

Alphawave Semi pioneers 3nm UCIe IP, revolutionizing with TSMC CoWoS packaging.

Alphawave Semi pioneers 3nm UCIe IP, revolutionizing with TSMC CoWoS packaging.

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Background Information


About TSMC:

TSMC, or Taiwan Semiconductor Manufacturing Company, is a semiconductor foundry based in Taiwan. Established in 1987, TSMC is a important player in the global semiconductor industry, specializing in the manufacturing of semiconductor wafers for a wide range of clients, including technology companies and chip designers. The company is known for its semiconductor fabrication processes and plays a critical role in advancing semiconductor technology worldwide.

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Technology Explained


chiplet: Chiplets are a new type of technology that is revolutionizing the computer industry. They are small, modular components that can be used to build powerful computing systems. Chiplets are designed to be used in combination with other components, such as processors, memory, and storage, to create a complete system. This allows for more efficient and cost-effective production of computers, as well as more powerful and versatile systems. Chiplets can be used to create powerful gaming PCs, high-end workstations, and even supercomputers. They are also being used in the development of artificial intelligence and machine learning applications. Chiplets are an exciting new technology that is changing the way we build and use computers.

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CoWoS: CoWoS, or Chip-on-Wafer-on-Substrate, is a recent advancement in chip packaging that allows for more powerful processors in a compact size. This technology stacks multiple chips on a silicon interposer, enabling denser connections and improved performance. Developed for high-performance computing, CoWoS promises faster processing, lower power consumption, and the ability to pack more processing power into smaller devices.

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Latency: Technology latency is the time it takes for a computer system to respond to a request. It is an important factor in the performance of computer systems, as it affects the speed and efficiency of data processing. In the computer industry, latency is a major factor in the performance of computer networks, storage systems, and other computer systems. Low latency is essential for applications that require fast response times, such as online gaming, streaming media, and real-time data processing. High latency can cause delays in data processing, resulting in slow response times and poor performance. To reduce latency, computer systems use various techniques such as caching, load balancing, and parallel processing. By reducing latency, computer systems can provide faster response times and improved performance.

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PCIe: PCIe (Peripheral Component Interconnect Express) is a high-speed serial computer expansion bus standard for connecting components such as graphics cards, sound cards, and network cards to a motherboard. It is the most widely used interface in the computer industry today, and is used in both desktop and laptop computers. PCIe is capable of providing up to 16 times the bandwidth of the older PCI standard, allowing for faster data transfer speeds and improved performance. It is also used in a variety of other applications, such as storage, networking, and communications. PCIe is an essential component of modern computing, and its applications are only expected to grow in the future.

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Substrate: The technology substrate is a layer of material that provides a foundation for the components of a computer system. It is the foundation upon which the components of a computer system are built. It is usually made of a material such as silicon, which is a semiconductor material. The technology substrate is used to create the circuits and pathways that allow the components of a computer system to communicate with each other. It is also used to create the physical structure of the computer system, such as the motherboard, memory, and other components. The technology substrate is essential for the functioning of a computer system, as it provides the necessary pathways for the components to communicate with each other. It is also used to create the physical structure of the computer system, such as the motherboard, memory, and other components.

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