KLA-Tencor(TM) Announces Live Webcast Participation at Upcoming Investor Conferences


MILPITAS, Calif., Feb. 3, 2011 - KLA-Tencor Corporation(TM) (Nasdaq: KLAC), the world's leading supplier of process control and yield management solutions for the semiconductor and related industries, today announced that the company will provide live audio webcasts from the following upcoming investor conferences:

o Feb. 11, 2011-Stifel Nicolaus, 2011 Technology, Communications and
Internet Conference, 8:35 a.m. Pacific Standard Time (PST).

o Feb. 15, 2011-Goldman Sachs, 2011 Technology and Internet Conference,
2:00 p.m. PST.

The live webcasts will be available on the Investor Relations page of KLA-Tencor's website at ir.kla-tencor.com, and a replay of the webcast will remain available on KLA-Tencor's Investor Relations web page for 90 days following the webcast.

About KLA-Tencor:

KLA-Tencor Corporation, 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, data storage, LED, photovoltaic, 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 30 years. Headquartered in Milpitas, Calif., KLA-Tencor has dedicated customer operations and service centers around the world. Additional information may be found at www.kla-tencor.com. (KLAC-F)

SOURCE KLA-Tencor

CONTACT:

Investor Relations,

Ed Lockwood, Sr. Director,

Investor Relations,

+1-408-875-9529,

ed.lockwood@kla-tencor.com,

or

Media Relations,

Meggan Powers,

Sr. Director,

Corporate Communications,

+1-408-875-8733,

meggan.powers@kla-tencor.com,

both of KLA-Tencor

Web Site: www.kla-tencor.com

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