Thank you, Carmen. Good afternoon, and welcome to our conference call to discuss Cohu's fourth quarter and fiscal year 2018 results and first quarter outlook for 2019. I'm joined today by our President and CEO, Luis Müller; and our Vice President of Finance and CFO, Jeff Jones. If you need a copy of our earnings release, you may access it from our website at www.cohu.com or by contacting Cohu Investor Relations. There is also a slide presentation accompanying today's call that may be accessed through the webcast link on Cohu's website and is also posted as a PDF in the Investor Relations section. Replays of this call will be available via the same page after the call concludes. Now to the Safe Harbor. During the course of this conference call, we will make forward-looking statements reflecting management's current expectations concerning the Company's future business. These statements are based on current information that we have assessed, but which by its nature is subject to rapid and even abrupt changes. We encourage you to review the forward-looking Statements section of the slide presentation and the earnings release as well as Cohu's filings with the Securities and Exchange Commission, including the most recently filed Form 10-K, Form 10-Q and registration statement on Form S-4. Our comments speak only as of today, March 12, 2019, and Cohu assumes no obligation to update these statements as a result of developments occurring after this call. Finally, during the call today, we will also discuss certain non-GAAP financial measures. Please refer to our earnings release and slide presentation for reconciliations to the most comparable GAAP measures. Now, I'd like to turn the call over to Luis Müller, Cohu's President and CEO. Luis?
Luis Müller: Thanks Rich. Good afternoon and thanks for joining us. On today's call, I'll provide commentary on the fourth quarter and fiscal year 2018 results. I'll also discuss the current business environment, provide an update on the integration of Xcerra and share our thoughts on the industry prospects for 2019. Cohu's fourth quarter sales of 170.6 million were within guidance for the first reported period reflecting the combination of Cohu and Xcerra, following the close of the acquisition on October 1, 2018. Non-GAAP earnings per share of $0.24 was better than expected and reflects the strength in the business model, although the mobility market has weakened since early last fall, there was one positive exception in the fourth quarter as our customer drove volume demand for our testers, handlers and contactors to support production plans for our new device launch in 2019. Holding up relatively well were the automotive and data center, cloud and AI semiconductor markets. We had a particularly strong quarter for analog IC test with customers driving demand for our testers, gravity handlers and power analog contactors. While not all customers serve in this market continued to see a strong demand into the New Year, several are maintaining a bullish outlook. We also had several design wins in the quarter. Our tri-temperature, pick-and-place handlers were qualified at three new customers and we capture a new win in the European automotive semiconductor market with our turret inspection platform. We continue to see demand for our testers used in engineering for 5G applications, which are expected to ramp in higher-volume later this year. We also had multiple design wins with the xWave contactor at a leading mobility customer testing 5G antenna modules, power amplifiers and transceivers. Several early adopters of this contactor have begun ramping volume manufacturing for automotive radar applications. Despite weaker market conditions, Cohu has still delivered growth year-over-year including the contribution from Xcerra annual sales reached 451.8 million and non-GAAP earnings per share of $1.49. We are not immune to the same market weakness affecting many semiconductor and semiconductor equipment companies. This includes the impact of continued softness in the mobility and IoT markets that started last fall and persist into the beginning of this year, uncertainty around the U.S. and China trade disputes, slower global GDP growth, and consequently demand from customers particularly in China. Today even automotive and industrial markets are feeling the impact from soft demand for semiconductors. What is difficult to pinpoint is the exact contribution of each of these various factors are having on the industry and how long they will persist including any seasonal influences. Aside from continued strength in cloud, AI and data center related businesses we are only now emerging from what is typically the seasonally weak period for the industry. At this point, we have not seen any significant change in tone or sentiment from our customers. There are some bright spots, but overall customers see market weakness continuing into Q2 while expecting a return to growth as we approach the middle of the year resulting in a stronger second half. This year is consistent with several customer specific projects we have been working on, that are expected to ramp in high volume later this year. Our latest data points from the December survey showed equipment utilization at approximately 81%, which is down 3 points quarter-over-quarter. This is consistent with what we could expect given the current market conditions. As for the integration of Xcerra, we announced the plan in late November to rationalize our global handler and contactor manufacturing operations, resulting in the closing our facilities in Penang, Malaysia and Fontana, California by the end of this year. These facility closings are expected to eliminate about 280 positions and reduced cost by approximately 8 million annual run rate by the end of 2019. We have also communicated to customers, plans to consolidate certain handler product lines that are expected to lead to additional reductions in operating expenses and improvements to gross margin in the second half of 2019. More recently, we have agreed to an early termination with our distributor for Xcerra products in China and Taiwan, effectively going direct in these regions starting tomorrow March 13th, instead of the previously announced date in September 2019. This is expected to help accelerate profitability of business generating these regions and increases ability into new business opportunities. You may recall we committed to $20 million of annual run rate cost synergies within the first two years of the acquisition and these actions put us about a year ahead of schedule. Turning to 2019, we forecast the non-memory market for semiconductor test and inspection to contract approximately 10% to 15% year-over-year. We estimate that non-memory handler market our largest segment to be about 600 million to 650 million in 2019 and the SoC tester market likely to be in the range of 2.1 billion to 2.3 billion. We also expect the inspection market to decline approximately 10% and model the contactor in PCB test markets to be about flat year-over-year with 5G infrastructure and other millimeter wave applications offsetting some decline in traditional product segments. All of these estimates assume our customers' expectations of a midyear recovery take shape. Our work on 5G solutions is starting to turning to meaningful business. Our PCB test is leading the way with new high accuracy methods to test the quality of back-drills, a critical concern for high-frequency signal transmission. Our millimeter wave contactors continue to win new opportunities while existing customers are starting to ramp in volume production. There is optimism that investments in 5G related infrastructure will accelerate into the second half of the year, and if so that should also translate into initial volume orders for testers and handlers. Overall, we expect the semiconductor market will continue to grow over the midterm, not only due to 5G but also from the continued expansion of semiconductor content in automobiles and industrial equipment, the proliferation of sensors in IoT and IoV applications, the adoption of industry 4.0 and the general growth in data creation, storage and processing. Now, I would like to turn it over to Jeff to review our fourth quarter results and provide first quarter guidance.