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Barratt joined Atheros as vice presidents and in March 2003 became CEO. In 2002, Atheros announced a dual-band wireless product, the AR5001X 802.11a/b. Atheros publicly demonstrated its inaugural chipset, the world's first WLAN implemented in CMOS technology and the first high-speed 802.11a 5 GHz technology.} In 2000, T-Span Systems was renamed Atheros Communications and the company moved to a larger office at 529 Almanor Avenue, Sunnyvale. In September 1999, the company moved to an office at 3145 Porter Drive, Building A, Palo Alto. The company's first office was a converted house on Encina Avenue, Palo Alto, adjacent to a car wash and Town & Country Village. Hennessy, provost at the time and then president of Stanford University through 2016. T-Span Systems was co-founded in 1998 by Teresa Meng, professor of engineering at Stanford University and John L. Qualcomm Atheros Headquarters in San Jose, CA
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Qualcomm Atheros chipsets for the IEEE 802.11 standard of wireless networking are used by over 30 different wireless device manufacturers. When the acquisition was completed on May 24, 2011, Atheros became a subsidiary of Qualcomm operating under the name Qualcomm Atheros. On January 5, 2011, it was announced that Qualcomm had agreed to a takeover of the company for a valuation of US$3.7 billion. The company was renamed Atheros Communications in 2000 and it completed an initial public offering in February 2004 trading on NASDAQ under the symbol ATHR. Founded under the name T-Span Systems in 1998 by experts in signal processing and VLSI design from Stanford University, the University of California, Berkeley and private industry. Qualcomm Atheros is a developer of semiconductor chips for network communications, particularly wireless chipsets. Colin Born, Corporate Develop