A technology blog for The Economist Group IT team

Monday, July 17, 2006

Debut of the HP 4 megabit wireless chip measuring 4mm square! 

Working in IT, we're used to seeing new amazing advancements, but for me this one takes the biscuit. It may be two years from production, with no word on cost, but amazing it most definetly is.

Including antena, it measures 2 to 4 mm square with its memory rangeing 256 kilobits - 4 megabits.

HP page: http://www.hp.com/hpinfo/newsroom/press/2006/060717a.html
BBC article: http://news.bbc.co.uk/1/hi/technology/5186650.stm

As for power: "no need for a battery or external electronics. It receives power through inductive coupling from a special read-write device, which can then extract content from the memory on the chip. Inductive coupling is the transfer of energy from one circuit component to another through a shared electromagnetic field. A change in current flow through one device induces current flow in the other device." - HP press release

-- Rob
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