New transistor wafer process technology promises shorter lead times

October 18, 2019 //By Julien Happich
wafer process
UK collaboration between Nottingham-based start-up, Search For The Next (SFN) and Glenrothes-based Semefab yielded a new transistor wafer process called Bizen, which the companies claim could disrupt the semiconductor industry.

Bizen applies the principles of quantum tunnel mechanics to any computing or power technology. When compared to CMOS, Bizen results in a five-fold lead time reduction, down from 15 weeks to just three weeks. Moreover, the new process achieves a three-fold increase in gate density that produces a matching three-fold reduction in die size. Lastly, Bizen halves the number of process layers required. All this is achieved while equalling or bettering the speed and low power capabilities offered by current CMOS devices, the companies claim.

“The CMOS processing industry is hitting a brick wall as shrinking geometries bash up against the laws of physics. We went back to the very beginning and found a way to commercialize quantum tunnel mechanics in silicon or wide bandgap device manufacture. The result is ‘Bizen’ – Bipolar/Zener – which retains the advantages of traditional bipolar processing yet removes the disadvantages by using Zener quantum tunnel mechanics. This results in lower dynamic power, higher speed and higher gate density, halving the number of process layers required, reducing material use by two thirds, and slashing manufacturing time. This allows any fab to become a category killer”, explains SFN’s CEO David Summerland.


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