Leeno Industrial Strike Shifts Semiconductor Probe Orders to Taiwan and Japan
A 40-day labor dispute at South Korean probe maker Leeno Industrial is forcing major chip designers to diversify their supply chains to avoid bottlenecks.
A prolonged labor strike at Leeno Industrial, a leading South Korean manufacturer of semiconductor probe cards, has disrupted the supply of critical testing components for the global chip industry. The instability has prompted major integrated circuit (IC) design houses to shift orders to competitors in Taiwan and Japan to avoid production bottlenecks.
The labor dispute began with rotating strikes on July 20 and escalated into an indefinite, full-scale strike on July 23. Now exceeding 40 days, the walkout has severely hampered Leeno Industrial's production capacity. In response to the ongoing disruption, the company has proactively advised its customers to seek alternative supply sources to maintain their own manufacturing schedules.
The Role of Probe Cards
Semiconductor probe cards are highly specialized tools used to test silicon wafers during the manufacturing process. These components are essential for verifying the functionality of chips before they are packaged. Because these tools are critical to the quality control of high-end GPUs and AI accelerators, any gap in their availability can lead to significant delays in the final delivery of hardware.
Market Shift to Competitors
As Leeno Industrial's output faltered, orders began migrating toward other specialized firms capable of meeting the technical requirements of top-tier chip designers. Among the primary beneficiaries is Taiwan's WinWay Technology (6515.TW), alongside Japanese firms Yamaichi Electronics and Yokowo.
Leeno Industrial maintains a high-profile customer base that includes industry giants such as Nvidia, Qualcomm, and Broadcom. While the shift in orders is a general trend across Leeno's client base, the move underscores the urgency for these firms to secure stable testing infrastructure to support the current surge in AI chip demand.
Supply Chain Implications
This disruption highlights the inherent fragility of the semiconductor supply chain, where the failure of a single specialized vendor can create ripple effects across the entire ecosystem. For companies like Nvidia and Qualcomm, the situation reinforces a strategic pivot toward supplier diversification. By spreading orders across multiple geographic hubs—specifically moving from South Korea to Taiwan and Japan—major players are attempting to insulate themselves from localized labor instability and geopolitical risks.
What to Watch
Industry analysts are now monitoring whether this temporary shift in procurement will lead to permanent changes in the market share of probe card manufacturers. It remains to be seen when a resolution will be reached between Leeno Industrial and its labor union, and whether the company can recover its standing with key clients once production resumes.