KLA Corporation is an American capital equipment company based in Milpitas, California. It supplies process control and yield management systems for the semiconductor industry and other related nanoelectronics industries. The company's products and services are intended for all phases of wafer, reticle, integrated circuit (IC) and packaging production, from research and development to final volume manufacturing. KLA-Tencor was formed in 1997 through the merger of KLA Instruments and Tencor Instruments, two companies in the semiconductor equipment and yield management systems industry. The merger was intended to create a single source for chip process and diagnostics equipment. KLA Instruments was founded in 1975 by Ken Levy and Bob Anderson, and focused on photomask detection to identify chip defects. KLA later broadened its product line to include wafer inspection, wafer metrology and integrated inspection and analysis software. Tencor was founded in 1976 by Czech scientist and US immigrant Karel Urbanek, along with colleague John Schwabacher. The company initially focused on making precise measurements of semiconductor film layer thickness, and in 1984, developed laser-scanning technology to detect particle and other contamination. The company also developed defect review and data analysis equipment. At the time of the merger, the companies' combined revenue was greater than $1 billion. More information...
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