The Design And Verification Of Radiation Hardened Standard Cell Library Based On The SMIC0.13?m Process

With the vigorous development of space industry,the scale of aerospace chip is increasing,the design is also more difficult to achieve.Due to the particularity of the application environment of spacecraft,the large amount of high energy particles in space will induce radiation effect on the chip,such as Single Event Effect and Total Ionizing Dose Effect.Therefore,it is necessary that the design of aerospace grade integrated circuit anti-radiation reinforcement measures,so that it has a certain anti-radiation performance.Combined with the above two problems which urgently need to be resolved.In this paper,the design of a anti-radiation ability of the standard cell library based on the commercial process,semi-custom method is conducive to shorten the design cycle of aerospace grade integrated circuits,and make it meet the aerospace grade radiation performance requirements.In this paper,the use of standard commercial CMOS technology,design and development of a anti-radiation standard cell library based on the SMIC0.13?m process.First,the original standard cell library for research and learning,knowledge and understanding of standard cell library design methods and building a database processes.Then,by studying the design method of anti-radiation reinforcement,the standard unit is designed and characterized by siliconsmart tool,the unit data of the unit timing information is extracted,and then a set of anti-radiation characteristics standard cell library.Finally,in the EDA design process to verify the anti-radiation cell library is correct and identifiable,this article takes a counter module as an example.And the use of the anti-radiation unit library,the use of semi-custom design of a dedicated logic for the use of aerospace chips(ASIC),through the chip irradiation test data analysis results show that the anti-radiation unit library compatibility and consistent the design of radiation targets.The main research work and achievements of this paper include:(1)This paper introduces the various radiation effects in the space environment,and analyzes and summarizes the current proven anti-radiation technology and anti-radiation circuit design and reinforcement methods.Theoretically,the response model of the single event effects circuit is modeled,and the corresponding single event effects current source model is generated by TCAD tool.(2)The completion of the anti-radiation reinforcement design of the D flip-flop,independently.It is reinforced by the combination of Delay-C unit,and the minimum W/L size is determined by performing single event effects circuit-level simulation for each sensitive point.(3)A design flow based on SMIC0.13?m CMOS anti-radiation standard cell library is proposed.The design of anti-radiation reinforcement unit is completed by manual design.The simulation software is used to simulate the single event effect theoretically.The single particle ability of the unit is verified.Through the siliconsmart tool on the unit timing information extraction,and to complete the necessary documents to complete the construction work.(4)From the chip design stage to the later irradiation test results,it is fully verified that the anti-radiation cell library designed in this paper meets the requirements of the project.