Thank you, Joelle. With me today is Kevin Brewer, Executive Vice President and CFO; and Doug Lawson, Executive Vice President of Corporate Marketing and Strategy. If you have not seen a copy of our press release issued last night, it is available on our website. Playback service will also be available on our website, as described in our press release. Please note that comments made today about our expectations for future revenues, profits and other results are forward-looking statements under the SEC safe harbor provision. These forward-looking statements are based on management's current expectations and are subject to the risks inherent in our business. These risks are described in detail in our Form 10-K annual report and other SEC filings, which we urge you to review. Our actual results may differ materially from our current expectations. We do not assume any obligation to update these forward-looking statements. Q1 was a solid quarter for Axcelis despite continued difficult market conditions. Revenue for the quarter was $91.5 million, with better than forecasted earnings of $0.18 per share, driven by strong systems gross margins and tightly controlled spending. Memory accounted for only 30% of our shipments in the quarter, with the bulk of shipments, 70%, going to mature foundrylogic customers. We expect the full year to reflect a similar imbalance in our segment mix. The geographic mix of our segment's system shipments for the first quarter was Korea, 28%; China, 16%; Taiwan, 26%; U.S. and Europe, 17%; and the rest of the world, 13%; highlighting the memory market slowdown as well as delayed investment activity in China. We anticipate weakness in the broad market throughout 2019 resulting from continuing softness in memory and in mature process technologies in some geographies. Lower fab utilization across the industry is expected, as customers manage their inventories, which, combined with more conservative expense control, will likely reduce our after-market revenue. These conditions are impacting our financial outlook for Q2 and could make the remainder of 2019 challenging as well. For the second quarter, we are forecasting revenues of approximately $80 million, gross margins of approximately 40%, operating profit of approximately $2 million and EPS in the range of $0.01 to $0.03. If current market conditions continue, we believe 2019 revenues could be down by 15% compared to 2018. We can't influence market conditions. So we will focus on what we can control. Our objectives are to maintain profitability and prepare for the next upturn. We will aggressively control our costs to manage through the downturn, while continuing to invest in R&D for new segment-focused products. These new products create competitive differentiation that supports our customers' technology and manufacturing needs and will fuel growth as the market recovers. These development efforts will focus on Purion product extensions for the image sensor market for advanced image sensor products, and on the powered device market in silicon carbide as well as silicon. Additionally, we will be investing in Purion H product extensions specifically targeting the productivity needs of the mature process technology market and the advanced technology requirements of leading-edge logic customers. The fundamentals of the datacenter connected world have not changed. The cycle continues to be driven by IoT in the mature foundry/logic market, data storage in the 3D NAND market, and data analytics and AI in the DRAM and advanced logic segments. 5G proliferation over the next few years will create another boost to this cycle across all segments. In the near term, we will be patient and manage our business for profitability and future growth, while our customers work down inventories and memory supply and demand come back into alignment. Now I'd like to turn it over to Kevin to discuss our financials.