Exhibit 99.1 Press Release (11.6.14)

MILPITAS, Calif., Nov. 6, 2014 - KLA-Tencor Corporation (NASDAQ: KLAC) today announced the closing of its previously announced registered offering of $250,000,000 aggregate principal amount of its 2.375% Senior Notes due 2017, $250,000,000 aggregate principal amount of its 3.375% Senior Notes due 2019, $500,000,000 aggregate principal amount of its 4.125% Senior Notes due 2021, $1,250,000,000 aggregate principal amount of its 4.650% Senior Notes due 2024 and $250,000,000 aggregate principal amount of its 5.650% Senior Notes due 2034.

As previously announced, KLA-Tencor intends to use the net proceeds from this offering, together with borrowings of $750.0 million under the amortizing term loans to be provided under a credit agreement that KLA-Tencor plans to enter concurrently with, or shortly after the completion of, this offering and cash on hand, (x) to fund a special dividend to KLA-Tencor’s stockholders of approximately $2.75 billion and (y) subject to the closing of the credit facility, to redeem the $750.0 million outstanding principal amount of KLA-Tencor’s 6.900% Senior Notes due 2018 (including the payment of associated redemption premiums, accrued interest and related fees and expenses) as promptly as practicable following the completion of this offering and (z) for other general corporate purposes, including repurchases of up to 16.6 million shares of KLA-Tencor’s common stock pursuant to KLA-Tencor’s stock repurchase program. KLA-Tencor expects the credit facility to consist of the $750.0 million of amortizing term loans described above, which will be drawn upon the closing of the credit facility, and commitments for an unfunded revolving credit facility of $500.0 million.

KLA-Tencor has filed an effective registration statement (including a prospectus supplement and accompanying base prospectus) with the Securities and Exchange Commission (the “SEC”) for the offering to which this communication relates. Before you invest, you should read the effective registration statement (including the prospectus supplement and accompanying base prospectus) for more complete information about KLA-Tencor and this offering. You may obtain these documents free of charge by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, copies may be obtained from J.P. Morgan Securities LLC at the following address: 383 Madison Avenue, New York, New York 10179, Attention: Investment Grade Syndicate Desk-3rd Floor or by calling collect at (212) 834-4533.

Statements in this press release other than historical facts, such as statements regarding KLA-Tencor’s intention to use the net proceeds from this offering, together with borrowings under a credit agreement that KLA-Tencor plans to enter concurrently with, or shortly after the completion of, this offering and cash on hand, to fund a special dividend and redeem the $750.0 million outstanding principal amount of KLA-Tencor’s 6.900% Senior Notes due 2018 (including the payment of associated redemption premiums, accrued interest and related fees and expenses); KLA-Tencor’s plans to enter into a credit agreement; KLA-Tencor’s repurchases of up to 16.6 million shares of KLA-Tencor’s common stock pursuant to KLA-Tencor’s stock repurchase program; and KLA-Tencor’s expectations regarding the allocation of the credit facility, are forward-looking statements, and are subject to the Safe Harbor provisions created by the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on current information and expectations, and involve a number of risks and uncertainties. Actual results may differ materially from those projected in such statements due to various factors, including but not limited to: the demand for semiconductors; the financial condition of the global capital markets and the general macroeconomic environment; new and enhanced product and technology offerings by competitors; cancellation of orders by customers; the ability of KLA-Tencor’s research and development teams to successfully innovate and develop technologies and products that are responsive to customer demands; KLA-Tencor’s ability to successfully manage its costs; market acceptance of the company’s existing and newly issued products; and changing customer demands. For other factors that may cause actual results to differ materially from those projected and anticipated in forward-looking statements in this release, please refer to KLA-Tencor’s Annual Report on Form 10-K for the year ended June 30, 2014, subsequently filed Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission (including, but not limited to, the risk factors described therein). KLA-Tencor assumes no obligation to, and does not currently intend to, update these forward-looking statements.

KLA-Tencor Corporation (NASDAQ: KLAC), a leading provider of process control and yield management solutions, partners with customers around the world to develop state-of-the-art inspection and metrology technologies. These technologies serve the semiconductor, LED and other related nanoelectronics industries. With a portfolio of industry-standard products and a team of world-class engineers and scientists, the company has created superior solutions for its customers for more than 35 years. Headquartered in Milpitas, California, KLA-Tencor has dedicated customer operations and service centers around the world. (KLAC-F)



Investor Relations:		Media Relations:
Ed Lockwood		Meggan Powers
Sr. Director, Investor Relations		Sr. Director, Corporate Communications
(408) 875-9529		(408) 875-8733
ed.lockwood@kla-tencor.com		meggan.powers@kla-tencor.com