IC Design Of Multiplierlogic Computing In RRAM

With the CMOS device technology into the manufacturing era of 7nm,the"Moore era" defined by Moore's law is coming to an end,and the microelectronics industry is in urgent need of a new generation of devices to guide the development of the whole industry.In addition,the development of traditional von neumann computers has reached a bottleneck due to the extreme mismatch between processor performance and memory performance and the parasitic effect of transmission bus.In order to solve these two problems,we need to find a new breakthrough.As a new type of non-volatile storage,RRAM resistive memory has been considered as a new type of device most likely to break through the limitations of traditional devices due to its simple structure,high integration and low power consumption.In recent years,the research on RRAM has made great progress not only in memory,but alsoin the in-memory logic computing.There have been a lot of papers published in the world,proposing new in-memory logic computing algorithm to improve and optimize the previous logic algorithm.The combination of RRAM and logic computing can not only solve the limitation of traditional memory due to its size,but also provide a good solution to break through the bottleneck of computer.However,RRAM based-onlogic computing inmemory is still in the research stage at present.Although it can achieve the fusion of storage and calculation simply,it still remains at the basic logic level,and there are still many shortcomings,including slow operation speed,high requirements for RRAM device stability,complex structure and other problems,which need to be solved urgently.In this paper,we propose a method of logic operation based on Majority-Inverter Graph(MIG)logic.From the logical level,MIG logic has been proved to have faster speed and less power than traditional AND/OR/INV Graphs logic when realizing some complex operations.Form the memristor level,MIG logic has a very good fit with memristor,and the single memristor unit can realize a MIG logic operation.Based on this,this paper designs a full adder and multibit multiplierFinally,the physical realization of the circuit is carried out according to the design of the hardware circuit.The research and experiment result of MIG logic show that MIG logic not only improves the speed of current memristor logic operation,but also provides a solution for the future design of the computer arithmetic logic unit(ALU).