Financial Data and Key Metrics Changes - In Q1, revenues were $171.4 million, a decrease of 9.6% from Q4 and an increase of 1.6% year-over-year [16] - Non-GAAP gross margin for Q1 was 39.2%, down from 40.2% in Q4 [18][19] - Non-GAAP EPS for Q1 was $0.23, down from $0.27 in Q4 [23] - GAAP net income for Q1 was $6.4 million, or $0.08 per diluted share, compared to $9.7 million, or $0.12 per diluted share in Q4 [22] Business Line Data and Key Metrics Changes - Probe card segment revenues were $136.5 million in Q1, a decrease of 9.2% from Q4, driven by lower DRAM and Flash revenues [17] - Foundry and Logic revenues increased to $85 million in Q1, a 2.4% increase from Q4, comprising 49.8% of total revenues [17] - DRAM revenues were $48.9 million in Q1, down 22.8% from Q4, representing 28.5% of total revenues [17] - Systems segment revenues were $34.8 million in Q1, a decrease from Q4, but expected to see moderate growth in Q2 [12][17] Market Data and Key Metrics Changes - The company anticipates double-digit sequential revenue growth in Q2, driven by demand from hyperscalers and investments in generative AI [5] - HBM probe card demand is expected to increase due to ongoing shipments for existing HBM3E designs and new HBM4 designs [8][10] - The company has seen a reduction in revenue from China due to tariffs and export controls, validating its decision to divest operations in that region [6][7] Company Strategy and Development Direction - The company is focusing on diversifying its customer base and product offerings, particularly in HBM and advanced packaging [39] - A recent acquisition of FICT Limited enhances the company's access to multilayer organic substrates, crucial for advanced foundry and logic probe cards [11] - The company aims to achieve a target model of $2 non-GAAP EPS on $850 million of revenue, with a gross margin target of 47% [15][44] Management's Comments on Operating Environment and Future Outlook - Management noted that the current geopolitical and tariff environment creates uncertainty, impacting revenue and gross margins [5][6] - The company is taking a cautious approach to capital investments while evaluating the evolving tariff situation [24] - Management expressed optimism about the growth potential in the second half of 2025, particularly in the foundry and logic markets [63] Other Important Information - The company generated free cash flow of $6.3 million in Q1, down from $28.8 million in Q4, primarily due to lower profitability [23] - The company has initiated a new $75 million share repurchase program after fully utilizing the previous program [24] Q&A Session Summary Question: Impact of tariffs on revenue and margins - Management confirmed an estimated mid single-digit million dollar reduction in revenues due to tariffs, particularly affecting multinational customers in China [30][31] Question: Customer dynamics and revenue contributions - Management noted a return of a key customer to the top sales list, indicating increased activity in the client PC space and a focus on regaining competitive position [36][37] Question: DRAM business outlook - All projected growth in DRAM is expected to come from HBM, with steady demand in non-HBM applications [42] Question: Co-package optics and its impact - Management highlighted the potential for co-package optics to drive growth in both systems and probe card businesses, emphasizing the importance of collaboration with customers [65][86] Question: Advanced probe cards for GPUs - The company is making progress in qualifying advanced probe cards for GPUs, with expectations for positive updates in the second half of the year [72][73]

Financial Data and Key Metrics Changes - In Q1, revenues were $171.4 million, a decrease of 9.6% from Q4 and an increase of 1.6% year-over-year [16] - Non-GAAP gross margin for Q1 was 39.2%, down from 40.2% in Q4 [18] - Non-GAAP EPS for Q1 was $0.23, down from $0.27 in Q4 [23] - GAAP net income for Q1 was $6.4 million, or $0.08 per diluted share, compared to $9.7 million, or $0.12 per diluted share in Q4 [22] Business Line Data and Key Metrics Changes - Probe card segment revenues were $136.5 million in Q1, a decrease of 9.2% from Q4, driven by lower DRAM and Flash revenues [17] - Foundry and Logic revenues increased by 2.4% to $85 million in Q1, representing 49.8% of total revenues [17] - DRAM revenues were $48.9 million in Q1, down 22.8% from Q4, comprising 28.5% of total revenues [17] - Systems segment revenues were $34.8 million in Q1, a decrease from Q4, but expected to see moderate growth in Q2 [12][17] Market Data and Key Metrics Changes - The company anticipates double-digit sequential revenue growth in Q2, driven by demand from hyperscalers and investments in generative AI [5] - HBM probe card demand is expected to increase due to ongoing shipments for existing HBM3E designs and new HBM4 designs [8] - The company has seen a reduction in revenue from China due to tariffs and export controls, validating its decision to divest operations in that region [7] Company Strategy and Development Direction - The company is focusing on diversifying its customer base and product offerings, particularly in HBM and advanced packaging [38] - A recent acquisition of FICT Limited enhances the company's access to multilayer organic substrates, crucial for advanced foundry and logic probe cards [11] - The company aims to achieve $2 of non-GAAP EPS on $850 million of revenue, with a target gross margin of 47% [15][44] Management's Comments on Operating Environment and Future Outlook - Management noted that the current geopolitical and tariff environment creates uncertainty, impacting revenue and gross margins [5][6] - The anticipated growth in Q2 is not expected to be driven by tariff-related order acceleration, but rather by genuine demand increases [5] - The company is taking a cautious approach to capital investments in light of evolving geopolitical conditions [24] Other Important Information - The company generated free cash flow of $6.3 million in Q1, down from $28.8 million in Q4, primarily due to lower profitability [23] - A new two-year share repurchase program of $75 million has been approved by the Board of Directors [24] Q&A Session Summary Question: Impact of tariffs on revenue and margins - Management confirmed an estimated mid single-digit million dollar reduction in revenues due to tariffs, particularly affecting multinational customers outside free trade zones [29][30] Question: Customer dynamics and revenue contributions - A former top customer has returned to the list, indicating increased activity in the client PC space, which is expected to contribute positively to revenue [36][37] Question: DRAM business outlook - The growth in DRAM revenue is primarily driven by HBM, with expectations for continued strength in HBM3 and new contributions from HBM4 [41][42] Question: Systems sales and demand visibility - While visibility for individual orders is low, there is better long-term visibility for systems demand, particularly related to co-package optics [101]

Core Viewpoint - The release of the HBM4 specification by JEDEC is a significant advancement for AI training hardware developers, offering enhanced memory performance and density crucial for processing large datasets and complex computations in applications like generative AI and high-performance computing [1][3]. Summary by Sections HBM4 Overview - HBM4 provides a memory performance of 2TB/s and a density of up to 64GB, which is essential for applications requiring efficient processing of large datasets [1][3]. - The bandwidth of HBM4 is double that of HBM3, achieved by increasing the frequency to 8Gb/s and doubling the data width to 2048 bits [3]. Key Features of HBM4 - Higher Bandwidth: HBM4 supports over 1TB/s per stack, significantly surpassing DDR4's 25.6GB/s per module, which is critical for workloads needing rapid data access [7]. - Higher Memory Density: HBM4's vertical stacking architecture allows for greater memory density in a smaller physical footprint compared to traditional DDR memory [7]. - Energy Efficiency: HBM4 typically consumes 40% to 50% less power than DDR4 at equivalent bandwidths, enhancing performance while reducing power consumption [7]. Applications of HBM4 - HBM4 plays a crucial role in AI and machine learning applications that require high-speed processing of massive datasets, improving the performance of AI accelerators [9]. - In high-performance computing and scientific simulations, HBM4 significantly accelerates computation speeds and reduces memory bottlenecks, enhancing the efficiency of supercomputers and HPC clusters [9]. Challenges in HBM4 Deployment - High Production Costs: The advanced architecture of HBM4 results in higher manufacturing costs compared to traditional memory solutions [12]. - Complex System Integration: HBM4 requires proximity to CPUs or GPUs, complicating system design and integration for manufacturers [12]. - Thermal Management Issues: The high data transfer rates generate more heat, necessitating sophisticated cooling systems to maintain stable performance [13]. Workflow Advantages of HBM4 - HBM4 supports advanced multitasking environments, accelerating data processing between CPUs and memory, which is beneficial for running multiple virtual machines or complex workflows [14]. - Its compact design allows for higher memory density in space-constrained high-performance systems, providing greater flexibility in system design [14]. Future Trends of HBM4 - The future development of HBM4 may focus on integration with emerging technologies like quantum computing and next-generation AI accelerators, enhancing its role in supporting innovative applications [16]. - Efforts to reduce production costs and simplify system integration are expected to drive broader adoption in commercial and consumer markets [16].