基于Verilog-A行为描述的反熔丝模型设计
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摘要
反熔丝型器件电路包含大量反熔丝单元,而工艺厂不提供反熔丝模型,因此急需建立反熔丝行为级仿真模型。通用的Verilog行为级模型无法体现反熔丝型器件的性能特点,无法满足反熔丝型器件设计要求。通过对反熔丝电学特性分析,建立了基于Verilog和verilog-A的行为级模型。基于逻辑Verilog的行为级模型,可以模拟反熔丝型器件的逻辑功能,但无法体现反熔丝的性能。基于硬件语言verilog-A的行为级模型,通过spectre仿真软件验证,其电学特性可以完全替代反熔丝型器件。在反熔丝型器件的设计和仿真中,使用verilog-A建立的反熔丝模型,整体电路仿真时网表数据量可以减少,进行仿真过程中在保证电路仿真精度的同时可以减少运算量进而缩短仿真周期。
The antifuse circuit device consists of a large number of antifuse units,and the craft foundry does not provide the antifuse model,so it is urgent to establish antifuse behavior simulation model. Verilog behavioral model can 't reflect the general characteristics and meet the design requirements of antifuse devices. Based on the analysis of antifuse electrical characteristics,a behavioral model based on Verilog and Verilog- A is established. The behavioral model based on Verilog can simulate the logic function of the antifuse device instead of the performance of antifuse. Behavioral model based on the hardware Verilog- A,by spectre simulation software,is verified to completely replace the antifuse device for the electrical characteristics. In the design and simulation of antifuse,the antifuse Verilog- A model is established during circuit simulation to reduce the number of network tables and ensure the accuracy of circuit simulation for reducing the computational complexity and shortening the simulation period.
The antifuse circuit device consists of a large number of antifuse units,and the craft foundry does not provide the antifuse model,so it is urgent to establish antifuse behavior simulation model. Verilog behavioral model can 't reflect the general characteristics and meet the design requirements of antifuse devices. Based on the analysis of antifuse electrical characteristics,a behavioral model based on Verilog and Verilog- A is established. The behavioral model based on Verilog can simulate the logic function of the antifuse device instead of the performance of antifuse. Behavioral model based on the hardware Verilog- A,by spectre simulation software,is verified to completely replace the antifuse device for the electrical characteristics. In the design and simulation of antifuse,the antifuse Verilog- A model is established during circuit simulation to reduce the number of network tables and ensure the accuracy of circuit simulation for reducing the computational complexity and shortening the simulation period.
引文
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[2]朱樟明,张春朋,杨银堂,等.基于Verilog-A的模拟电路行为模型及仿真[J].电子器件,2003,26(4):396-399.ZHU Zhang-ming,ZHANGChun-peng,YANGYintang,et al.Behavioral Model and Simulation of Analog Circuits Using Verilog-A[J].Chinese Journal of Electron Devices,2003,26(4):396-399.
[3]刘帘曦,杨银堂,朱樟明.基于Verilog-A行为描述模型的PLL系统设计[J].电子器件,2004,27(2):324-328.LIU Lian-xi,YANG Yin-tang,ZHUZhang-ming.System Design of PLL Based on Behavioral Model Using Verilog-A[J].Chinese Journal of Electron Devices,2004,27(2):324-328.
[4]刘帘曦,杨银堂,朱樟明,等.基于Verilog-A行为描述模型的VCO设计[J].电路与系统学报,2005,10(6):25-28.LIU Lian-xi,YANG Yin-tang,ZHU Zhang-ming,et al.Design of VCO based behavioral model using Verilog-A[J].JOURNAL OF CIRCUITS AND SYSTEMS,2005,10(6):25-28.
[5]刘帘曦.基于Verilog-A HDL高层次行为模型的大功率DC/DC开关电源芯片的设计研究[D].西安:西安电子科技大学,2006.LIU Lian-xi.Research and Design of High Power DC/DC Switch-converter Based on Behavior models in Verilog-A HDL[D].Xi'an:Xidian University,2006.
[6]石雅先.反熔丝FPGA设计技术研究[D].西安:西安电子科技大学,2011.SHI Ya-xian.Researchondesigntechnologyfor FPGABased on Anti-fuse Technology[D].Xi'an:Xidian University,2011.
[7]张旭.基于反熔丝技术的FPGA设计研究[D].无锡:江南大学,2012.ZHANG Xu.Design and Research of FPGABased on Anti-fuse Technology[D].Wuxi:JIANGNAN University,2012.
[8]沈琪,章建成.基于等效电路的电容器内熔丝设计[J].电力电容器与无功补偿,2013,34(6):24-28.SHEN Qi,ZHANG Jian-cheng.Design of Capacitor Internal Fuse Based on Equivalent Circuit[J].Power Capacitor&Reactive Power Compensation,2013,34(6):24-28.