Teradyne and MultiLane Launch MLTP JV to Speed Up High-Speed Interconnect Test for AI Data Centers

As artificial intelligence systems scale into ever more complex hardware clusters, the challenge of high‑speed connectivity has rapidly shifted from being a secondary engineering constraint to a strategic bottleneck in data center performance and reliability. Modern AI workloads demand not just massive compute power but ultra‑fast, low‑error interconnects between chips, boards, optics, switches, and network cards, stretching beyond traditional test approaches.

Teradyne and MultiLane have announced the formation of a new joint venture, MultiLane Test Products (MLTP), to accelerate development of critical high‑speed data connection test solutions for the AI data center equipment market. The deal is expected to close in the first half of 2026 and is subject to customary closing conditions.

MLTP’s mission is simple in language but strategic in scope: translate the engineering complexity of next‑generation interconnects into robust, scalable test products that help cloud and AI hardware vendors validate links from silicon to systems.

According to the official press release “Compute architectures are evolving quickly, driven by explosive growth in AI and the need for massive, reliable high‑speed interconnects. With the creation of MultiLane Test Products, we can expand our ability to support Teradyne customers all the way from the wafer level to the data center…” Greg Smith, President and CEO of Teradyne

“Wafer to data center” reflects a broader industry trend where test vendors aim to ensure not only that a chip or optical transceiver functions in isolation, but also that it performs reliably within the real‑world connectivity environments typical of hyperscale AI infrastructure.

Why High‑Speed Interconnect Test Is Becoming Critical

AI workloads are pushing data rates rapidly upward from 400G to 800G Ethernet and beyond, with the next horizon already in sight toward 1.6T (terabit) signaling and multi‑terabit interconnects. These links include:

• • Electrical SerDes and signal integrity verification
  • Optical module performance (coherent optics, QSFP‑DD, OSFP)
  • Backplane and board‑level link robustness
  • Production‑grade, high‑throughput validation for manufacturing

As one industry press release notes, testing is no longer just about correctness in a lab; it must support repeatable production quality at volume, a challenging requirement when operating at 100 GHz‑class signal frequencies and beyond.

Industry players have likewise highlighted this shift. For example, Keysight and partners are working to validate 3.2T multi‑terabit interfaces using advanced bit‑error‑rate testers and high‑speed oscilloscopes, illustrating how the broader market is wrestling with similar signal integrity and scale‑up challenges

MultiLane has built a reputation as a leader in high‑speed I/O and data center interconnect test tooling, with solutions that span from early development to production environments. Its products are designed for the Terabit generation of SerDes, covering passive and active interconnects across optical and electrical domains.

In its announcement, MultiLane’s CEO, Fadi Daou, described the venture this way: “MultiLane was founded on the belief that high‑speed connectivity is the backbone of modern computing. With Teradyne, we are building a global platform that combines our technical leadership with their commercial scale and customer reach… enabling us to accelerate innovation and deliver comprehensive test solutions across the entire compute infrastructure from silicon to system.”

Teradyne, long recognized for its leadership in automated test equipment (ATE) and advanced robotics systems, brings global market access, commercialization resources, and a massive installed base to the JV. Its portfolio has recently expanded not only in chip testing but also into system‑level and interconnect test platforms across semiconductor and electronics manufacturing.

Moreover, Teradyne has been actively building next‑generation test capabilities, such as high‑speed physical layer performance testers (e.g., UltraPHY 224G), which were developed with MultiLane modules, reflecting how their technologies are already converging.