The semi conductor device uses terahertz waves for data transmission, has a micro antenna attached to it and is 2cm long and 1cm high (size of the module). Rohm developed the technology in cooperation with a research team at Osaka University.
The chip is expected to cost just 'several hundred yen' or several American dollars to produce. Current terahertz-based wireless chips cost millions of yen to produce, are 20cm squared, and have a top speed of just 0.1 Gbps, according to the Nikkei.
Of course, it will likely take several years before this technology is widely available.