picoChip, a leading supplier of wireless silicon solutions, has announced that AT&T Corp., a subsidiary of AT&T Inc., has made a strategic investment in the company. The amount of the investment is undisclosed. picoChip was already ranked as the best-funded private WiMAX company following the $20.5 million previously raised in its third round of funding, which was announced in June last year. Other third round investors were Scottish Equity Partners, Rothschild, Intel Capital, Pond Venture Partners and Atlas Venture.

picoChip has developed the world's highest performance DSP tuned for wireless, and is a supplier of complete reference designs for WiMAX and HSDPA. WiMAX systems using picoChip are available from Airspan, Intel, Ericsson, Nortel, Marconi and a number of other manufacturers. The company recently announced an extension of its products with the first solutions for 802.16e basestation and mobile stations, to make picoChip's WiMAX portfolio the most complete available. In addition, picoChip has a number of strategic customers and partners, including Tier One manufacturers, and is fast becoming the industry standard for next-generation wireless infrastructure.