KLA-Tencor Corporation designs, manufactures, and markets process control and yield management solutions worldwide. It offers chip manufacturing products, such as front-end defect inspection tools, advanced packaging process control systems, defect review systems, metrology solutions, in-situ process monitoring products, and lithography software; wafer manufacturing products comprising surface and defect inspection, wafer geometry and nanotopography metrology, and data management; and reticle manufacturing products, such as defect inspection and pattern placement metrology products. The company also provides light emitting diode (LED) and compound semiconductor manufacturing products consisting of patterned wafer inspection, defect inspection, surface metrology, and data management products; thin-film head metrology and inspection, virtual lithography, in-situ process monitoring, transparent and metal substrate inspection, and data management products for data storage media/head manufacturing; and stylus and optical profiling, and optical inspection products microelectromechanical systems manufacturing, as well as products for general purpose/lab applications. It offers its products and services for bare wafer, IC, lithography reticle, and disk manufacturers. The company serves semiconductor and related nanoelectronics, LED, and data storage industries, as well as general materials research industries. KLA-Tencor Corporation was founded in 1975 and is headquartered in Milpitas, California.