When asked to develop an infra-red sensor that could turn a tap on and off, Hal Philipp came up with an electrostatic design that was reliable, cheap and ran on batteries.
He founded Quantum Research Group in 1998. It designs and sells touch-sensor chips that are built into everything from kitchen blenders to PC monitors. Customers such as General Electric use the touch sensors to make their products easier to use. Quantum’s sales have risen 68% a year from £508,000 in 2001 to £1.4m in 2003.
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