Greg Smith
President and Chief Executive Officer at Teradyne
Thanks, Tracy, and thank you all for joining us today. I'll start-off by summarizing our fourth quarter and full-year 2024 results and provide some context for our initial view of 2025. Then I'll provide context around our updated mid-term earnings model. I'll describe the trends we expect to -- we expect to drive the markets and Teradyne's strategy to drive highly leveraged earnings growth through the mid-term. Sanjay will then go into greater detail on all of these topics.
Our fourth quarter came at the high-end of our guidance range as trends we noted previously continued through the end-of-the year. Cloud AI has been the dominant driver of our semiconductor test business and we have seen some short-term improvement in the mobile space, driven by supply-chain shifts in our customer-base. In industrial and automotive, our fourth quarter benefited from customer-specific equipment purchases. Strength in our test business more than offset the continuing weakness in the industrial automation market, which impacted our robotics business.
In 2024, after two years of semiconductor test market declines, our SOC and memory test revenue grew 17% year-over-year, excluding DIS. AI was the dominant driver of our growth, specifically AI accelerator ASICs, networking and HBM DRAM. We have previously described a class of customers called VIPs or vertically-integrated producers. We use this term because these customers develop custom silicon to provide differentiation in their end-products, whether they are phones, cars or cloud AI computing.
In the first-half of 2024, we saw VIP strength for Edge AI and automotive. In the second-half, strength was driven by Cloud AI compute VIP customers. Our goal in 2024 was to achieve 50% market-share in computing VIPs and we believe that we achieved that goal. This is particularly notable because much of the VIP test demand in 2024 came in the form of upgrades to systems left underutilized by the weak mobile market. If this demand had come in the form of system sales, our VI 2024 VIP revenue would have been more than double what we recognized in the year.
At the company-level, we grew 5% in 2024. If one excludes the divestiture of the DIS business, our total revenue growth was 8%. We grew earnings per share by 10% year-over-year and generated over $470 million in free-cash flow. Our full-year financial results reflect an inflection in our business, both in terms of semiconductor test cyclical recovery, but more importantly, a successful pivot to diversify our customer-base and reduce customer concentration. In 2020 and 2021 timeframe, our business was dominated by mobile with high customer concentration in that market. Back then, we were highly exposed to mobile in SOC, memory and wireless tests.
Now in 2024, the compute end-market was a larger component of our revenue than mobile as our SOC business in the compute market grew more than 3.5 times the prior year. We have been investing to capitalize on the secular shift towards VIP ASICs and that yielded roughly 50% share in what we believe was around a $300 million TAM in 2024. We have seen growth driven by our historical strength in the networking space. And we see opportunities in-system level tests for AI compute.
The pivot we have executed in SOC over the past couple of years is remarkable. In 2023, 11% of our SOC product revenue was in computing and 51% was in auto and industrial. In 2024, 34% was in compute and 34% was in auto and industrial, a balance that underpins our longer-term model. Recent advancements in AI inference, which appear to reduce the cost and time to develop AI applications may be a catalyst to accelerate Edge AI development.
We think this could directly benefit the markets where we have historical strength, mobile and automotive. It's early days, but we believe that lower-cost, lower-power and faster time-to-market AI solutions can drive complexity growth and increased unit demand at the edge, which are key inputs for improving demand for test equipment.
Looking-forward to 2025, we expect the SOC TAM to continue to grow roughly 7% year-over-year. While some of this growth is driven by AI compute, we expect a modest recovery in mobile, automotive and industrial in the back-half of the year. We believe that we are positioned to gain share in the low-single digits in SOC test.
Now shifting gears to memory. In 2024, our memory business grew over five -- grew to over $500 million, up 30% year-over-year. Strength in the market and our growth was fueled by AI compute demand for HBM DRAM. In the second-half of 2024, we were qualified for HBM performance test at a major memory supplier. Our higher throughput and forward compatibility created competitive differentiation, enabling us to capture significant share of the HBM performance test market in the second-half of 2024.
We expect the HBM device end-market to be strong through 2025. However, from a test equipment perspective, we are expecting the market to soften as customers absorb capacity with higher productivity tools. We expect the HBM TAM to recover in 2026. As a result, we expect the entire memory test market to be flattish in 2025, although we do expect to gain share in the low single-digit range.
Beyond AI compute, we believe that there are other segments in the semiconductor test market that offer the opportunity for accelerating long-term growth. One of these areas is power semiconductors. These devices will continue to grow long-term with the crossover to EVs and the demand for more efficient power generation, storage and distribution. We are announcing a strategic partnership with Infineon, the market-leader in power semiconductors to acquire their internal tester development team in Regansburg, Germany. This group will enable us to accelerate our roadmap in power semiconductor space, specifically in areas like silicon carbide and gallium nitride at the scale needed to serve the automotive and renewables market.
While the semi-test business was strong in 2024, Paradigm's other product test businesses, which include our system test and wireless test operating segments, continued to be impacted by weak end-market conditions. Within our product test businesses, we saw some programs push-out from 2024 into 2025, but scored key program wins that we expect to drive healthy growth in 2025. We expect our wireless test business to return to growth in 2025 after securing 74 out of 80 tracked WiFi 7 design-win opportunities in 2024.
Turning to robotics. The industrial automation market continued to be weak in Q4. We typically see strong fourth quarter seasonality as customers place quick turn orders in the back-half of the quarter. Visibility is inherently low in this high turns business. In Q4 of 2024, this seasonality was far more muted than in prior years, and we ended the year down slightly for UR and roughly flat for Mir.
This underperformed our expectations but outperformed our Industrial Automation peer group. Despite the headwinds, there were highlights for robotics. The UR channel transformation continues to progress with the OEM channel delivering 20% growth and the mere large accounts also delivering 24% growth year-over-year in 2024.
In the fourth quarter, as part of our multifaceted partnership with NVIDIA, UR launched its AI accelerator. Late in the fourth quarter, Mir's new flagship product, the AI-enabled Mir 1200 palette Jack began shipping to customers. And most recently, Teradyne Robotics announced a strategic partnership with Analog Devices to develop and deploy robots, AI and software to support ADI's automation initiative.
In 2024, we combined UR and Mir operations into a unified robotics operations group. Now in Q1 of 2025, we are consolidating our go-to-market functions at the robotics level to enable our best partners to sell the full UR and Mir product-line and to serve our customers better with a single customer service organization. This restructuring increases our efficiency and reduces our robotics breakeven revenue from $440 million in 2024 to $365 million in 2025.
Looking ahead to the next four years, we are very optimistic. A year-ago, there were questions as to whether VIPs would matter and if they did, could we win their business. At that time, we thought the compute VIP market would be $100 million to $200 million opportunity in 2024, growing to $400 million to $600 million in the 2026 timeframe.
Our latest estimate is that the compute VIP market was $300 million in 2024 and the compute VIP market will be centered around $600 million in 2026 and could approach $800 million in 2028. We believe that Cloud AI will continue to drive share gains for us in SoC and memory. By the later years of this midterm, as AI moves to the edge for mobile enabled by process technology like 2-nanometer and gate all-around, we expect robust growth of the mobile TAM.
With the remarkable complexity of AI computing systems and the need for highly reliable performance in the training and use of AI models, we expect growing demand for additional test steps. The addition of system-level test insertions for AI compute both in the cloud and at the edge creates an additional growth vector for Teradyne. This was a primary consideration in our decision to align the integrated system test unit within.
Going-forward, we believe that AI will have an outsized impact on the longer-term growth of edge devices, specifically in mobile and automotive applications. Also, the trends towards electrification, whether pure EV or hybrid provide considerable growth potential with increasing silicon content per vehicle. Our investments in this space, including our strategic partnership with Infineon will help us drive share gains in this highly complex test-intensive segment of the market. Based on these long-term trends, we expect to see healthy TAM growth in the automotive and mobile segments of the market over the mid-term.
Our strong market position in these segments will help fuel our revenue growth. These positive trends underpin our 2028 earnings model. At the midpoint of our model, we expect to grow from $2.8 billion of revenue in 2024 to $5 billion in 2028. We expect EPS to grow from $3.22 per share to $8.25 per share over the same-period, implying a 12% to 18% revenue CAGR and a 21% to 31% EPS CAGR over that period, demonstrating considerable operating leverage in our business model.
To sum-up, 2024 was a very good year. We have repositioned the company and are seeing the success from our investments in AI in compute and in-memory. We expect that 2025 will be another good year. We are setting our robotics business up on a sustainable path for long-term growth and our test business will grow driven by continued strength in share gains in VIPs, tightening capacity utilization and the return of higher demand in mobile, industrial and automotive.
With that, I'll turn the call over to Sanjay. Sanjay?