Triple-1 Co. Ltd. a Japanese company established in Nov. 2016, engages in ASIC chip development and cyrpto mining farm construction. The company began looking into developing 7nm BTC mining chips in February last year which is called Kamikaze.
It is power efficiency and is listed at 0.05W/GH, which the company claims, reduces power conspumption by at least 50 percent over a conventional 16nm chip.