MKS Inc.

Ladies and gentlemen, thank you for standing by and welcome to the MKS Instruments fourth quarter and full year 2020 earnings call. At this time, all participants are on a listen-only mode. After the speaker's presentation, there will be a question and answer session. To ask a question during the session, you need to press star 1 on your telephone. If you require any further assistance, please press star then 0. I would now like to introduce your host for this conference call, Mr. David Rizek.

You may begin. Good morning, everyone.

I am David Rizek, Vice President of Investor Relations, and I'm joined this morning by John Lee, President and Chief Executive Officer, and Seth Bagshaw, Senior Vice President and Chief Financial Officer. Yesterday, after market close, we released our financial results for the fourth quarter and full year 2020, which are posted to our website, mksinst.com. As a reminder, various remarks about future expectations, plans, and prospects for MKS comprise forward-looking statements. Actual results may differ materially as a result of various important factors, including those discussed in yesterday's press release and in the most recent annual report on Form 10-K and any subsequent quarterly reports on Form 10-Q for the company. These statements represent the company's expectations only as of today, and should not be relied upon as representing the company's estimates or views as of any date subsequent to today, and the company disclaims any obligation to update these statements. During the call, we will be discussing non-GAAP financial measures. Please refer to our press release for information regarding our non-GAAP financial results and a reconciliation of our GAAP and non-GAAP financial measures. Now, I'll turn the call over to John.