We have revised prior periods to record a deferred tax asset in a foreign subsidiary and have made adjustments in each successive period related to the foreign currency exchange rate changes associated with that item. The prior periods also include revised amounts from a change in application of an accounting policy, related to manufacturing variances, and other adjustments. The company has determined that all amounts were immaterial to each of the reporting periods. Our results will be finalized in our Annual Report on Form 10-K, which is scheduled to be filed on or about February 23, 2015.

TELECONFERENCE

ON Semiconductor will host a conference call for the financial community at 5:00 p.m. Eastern Time (EST) on February 5, 2015, to discuss this announcement and ON Semiconductor’s results for the fourth quarter of 2014. The company will also provide a real-time audio webcast of the teleconference on the Investors page of its website at http://www.onsemi.com. The webcast replay will be available at this site approximately one hour following the live broadcast and will continue to be available for approximately 30 days following the conference call. Investors and interested parties can also access the conference call through a telephone call by dialing (888) 291-2604 (U.S./Canada) or (760) 536-5202 (International). In order to join this conference call, you will be required to provide the Conference ID Number - which is 66690866.

About ON Semiconductor

ON Semiconductor (Nasdaq: ONNN) is driving innovation in energy efficient electronics, empowering design engineers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help customers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions. For more information, visit http://www.onsemi.com.

ON Semiconductor and the ON Semiconductor logo are registered trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the company references its website in this news release, information on the website is not to be incorporated herein.

This document contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, included or incorporated in this document could be deemed forward-looking statements, particularly statements about the future financial performance of ON Semiconductor. These forward-looking statements are often characterized by the use of words such as "believes," "estimates," "expects," "projects," "may," "will," "intends," "plans," "should," or "anticipates," or by discussions of strategy, plans or intentions. All forward-looking statements in this document are made based on our current expectations, forecasts, estimates and assumptions, and involve risks, uncertainties and other factors that could cause results or events to differ materially from those expressed in the forward-looking statements. Among these factors are our revenues and operating performance, economic conditions and markets (including current financial conditions), effects of exchange rate fluctuations, the cyclical nature of the semiconductor industry, changes in demand for our products, changes in inventories at our customers and distributors, technological and product development risks, enforcement and protection of our intellectual property rights and related risks, risks related to the security of our information systems and secured network, availability of raw materials, electricity, gas, water and other supply chain uncertainties, our ability to effectively shift production to other facilities when required in order to maintain supply continuity for our customers, variable demand and the aggressive pricing environment for semiconductor products, our ability to successfully manufacture in increasing volumes on a cost-effective basis and with acceptable quality for our current products, competitor actions including the adverse impact of competitor product announcements, pricing and gross profit pressures, loss of key customers, order cancellations or reduced bookings, changes in manufacturing yields, control of costs and expenses and realization of cost savings and synergies from restructuring activities, significant litigation, risks associated with decisions to expend cash reserves for various uses such as debt prepayment, stock repurchases or acquisitions rather than to retain such cash for future needs, risks associated with acquisitions and dispositions (including from integrating and consolidating and timely filing financial information with the Securities and Exchange Commission ("SEC") for acquired businesses and difficulties encountered in accurately predicting the future financial performance of acquired businesses), risks associated with our substantial leverage and restrictive covenants in our debt agreements that may be in place from time to time, risks associated with our worldwide operations, including foreign employment and labor matters associated with unions and collective bargaining arrangements, as well as man-made and/or natural disasters affecting our operations and finances/financials, the threat or occurrence of international armed conflict and terrorist activities both in the United States and internationally, risks and costs associated with increased and new regulation of corporate governance and disclosure standards, risks related to new legal requirements and risks involving environmental or other governmental regulation. Additional factors that could cause results to differ materially from those projected in the forward-looking statements are contained in ON Semiconductor's 2013 Annual Report on Form 10-K filed with the SEC on February 21, 2014 ("2013 Form 10-K"), Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other of our filings with the SEC. You should carefully consider the trends, risks and uncertainties described in this document, the 2013 Form 10-K and other reports filed with or furnished to the SEC before making any investment decision with respect to our securities. If any of these trends, risks or uncertainties actually occurs or continues, our business, financial condition or operating results could be materially adversely affected, the trading prices of our securities could decline, and you could lose all or part of your investment. The company will report final results for the fourth quarter 2014 and the fiscal year ended December 31, 2014 in its annual report on Form 10-K to be filed with the SEC. The company's fourth quarter 2014 results could change during the time between this announcement and the filing of its annual report on Form 10-K with SEC. Readers are cautioned not to place undue reliance on forward-looking statements. We assume no obligation to update such information. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by this cautionary statement.