A material reduction in orders from our clients may adversely affect our results of operations and projected financial condition. However, it is possible that one or more of those suppliers might fail to perform as we anticipate, and such failure could have an antagonistic impression on our business and have a unfavourable impact on our operating results and monetary situation. In consequence of these danger components, as well as different dangers mentioned in our other SEC filings, our actual results could differ materially from those projected in any ahead-wanting statements. A big portion of our gross sales and operations occur exterior the United States and, due to this fact, may be subject to certain dangers, including but not limited to tariffs and different obstacles, difficulties in staffing and managing non-U.S. Semiconductor manufacturers businesses, in flip, depend on many elements, together with their financial functionality, the current and anticipated market demand for integrated circuits and the availability of tools capacity to support that demand. Please describe relevant examples of how the research, including principle or a conceptual framework, knowledgeable program improvement and implementation. Mr. Archer accomplished the program for Administration Improvement at Harvard Graduate School of Business and holds a Bachelor of Science diploma in Utilized Physics from the California Institute of Expertise.
He is a fellow of the American Physical and American Vacuum Societies and has served on numerous editorial boards of refereed technical publications, program committees for major conferences in plasma science and engineering, and was vice-chair of a National Research Council examine on plasma science in the 1980s. Dr. Gottscho earned Ph.D. Along with her Legal operate, in April 2009 she was appointed Vice President of Human Resources and served on this twin capability from April 2009 via May 2012. Prior to joining Lam Research, Ms. ODowd was Vice President and General Counsel for FibroGen, Inc. from February 2007 till September 2008. Until February 2007, Ms. ODowd was a shareholder within the legislation agency of Heller Ehrman LLP for greater than twenty years, practising in the areas of company securities, governance and mergers and acquisitions for a wide range of clients, principally publicly traded high know-how firms. Richard A. Gottscho is the Companys Executive Vice President, Global Products Group, a position he has held since August 2010. Prior to that point, he had been Group Vice President and General Manager, Etch Businesses since March 2007. Dr. Gottscho joined the corporate in January 1996 and has served at numerous Director and Vice President ranges in help of etch merchandise, CVD products, and corporate research.
Sarah A. ODowd is the Senior Vice President, Chief Legal Officer of the company. Douglas R. Bettinger is Executive Vice President, Chief Financial Officer of Lam Research. He was promoted to Chief Financial Officer in June 2004, appointed Executive Vice President and Chief Operating Officer in September 2008, and promoted to President in December 2010. In January 2012, Mr. Anstice was appointed Chief Executive Officer and in February 2012, appointed to the Lam Research Corporation board of administrators. At June 29, 2014 and June 30, 2013, our backlog was approximately $866 million and $764 million, respectively. Our R&D bills throughout fiscal years 2014, 2013, and 2012 have been $716.5 million, $683.7 million, and $444.6 million, respectively. Because our operating bills are based mostly partially on anticipated future revenues, and a certain quantity of these bills are comparatively mounted, a change in the timing of recognition of revenue and/or the level of gross profit from a small number of transactions can unfavorably have an effect on operating leads to a particular quarter. These rules might require us to change our current operations, to accumulate vital extra gear, or to incur substantial other expenses to comply with environmental rules. We are subject to a wide range of governmental laws associated to the administration of hazardous supplies that we use in our business operations.
We consider that we’re usually in compliance with these rules and that now we have obtained (or will obtain or are otherwise addressing) all essential environmental permits to conduct our business. Global economic and business conditions, which are often unpredictable, have historically impacted customer demand for our products and regular industrial relationships with our customers, suppliers, and creditors. In fiscal years 2014, 2013, and 2012, three clients, Samsung Electronics Company, Ltd., SK Hynix Inc., and Taiwan Semiconductor Manufacturing Company, Ltd., every individually represented better than 10% of total revenues. We imagine current challenges for patrons at varied points in the semiconductor manufacturing course of present alternatives for us. Our patents, which cowl materials points of our past and present core merchandise, have present durations starting from roughly one to twenty years. Nearly all of R&D spending over the past three years has been targeted at deposition, etch, single-wafer clear, and different semiconductor manufacturing products.