Flip-flop Patent Granted
Flip-flop Patent Granted
A patent for a new single-phase clocked flip-flop, constructed from as few as 18 transistors, has been granted.
The device was initially created by PhD student Yunpeng Cai during his studies at ECS and developed into a robust design while on his internship at Arm Research, Cambridge. Initial silicon results with the contention-free design incorporated into the Pipistrelle 4 test chip show significant power and area benefits. A publication is now in preparation.
More information can be found at https://patents.google.com/patent/US9985613B2/
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Pipistrelle-4
Pipistrelle-4, taped-out at the end of May 2017, is the latest in a series of low-energy sensor-system chips. The chip includes circuit/system ideas from multiple PhD research students and industry, focusing on an energy and performance optimised SRAM bitcell, low-area overhead energy-efficient flip-flops and standard-cells. The chip was taped-out during Yunpeng Cai’s internship at Arm Cambridge, and includes circuits to validate his novel flip-flop design which has now been patented. The prototype chips were received at the end of September 2017, and tested successfully.