FPGA输入输出模块ESD设计  

ESD Design of FPGA Input/Output Module

作　　者：周刚[1] 张雷[1] Zhou Gang Zhang Lei(The 47th Research Institute of China Electronics Techr~ology Group Corporation,Shenyang 110032,China)

机构地区：[1]中国电子科技集团公司第四十七研究所,沈阳110032

出　　处：《微处理机》2017年第3期17-21,共5页Microprocessors

摘　　要：为使研发的FPGA能够符合指示要求,针对FPGA多电源与可编程输入输出模块的结构特点,设计了ESD保护电路,使ESD保护能力达到人体模型2000V水平。采用ESD BUS技术,设计了ESD保护电路总体架构,并使用了二极管等箝位保护措施,通过多个全局电源线网对泄放电流分流,保证了ESD保护的有效;针对深亚微米工艺的LDD和Salicide结构对输入输出模块的输出驱动器件采用了有效的版图设计,消除了工艺对ESD保护能力的不良影响;对所用的几类ESD防护器件进行了简要介绍;最后,通过ESD测试和分析证明所设计的ESD保护电路达到人体模型2000V的设计要求。To satisfy performance request of FPGA, ESD protection circuit,based on the structural feature of multi-power and programmable input/output module,is designed,to make ESD protection ability to 2000V level of human body model.ESD protection circuit of architecture is designed by means of the ESD BUS technology.The diode clamp protection measures,dumping the current through multiple global power network,are used, to ensure the efficiency of the ESD protection.Focused on LDD and Salicide structure of Deep submicron devices,the paper adoptes effective layout design on the output driving device of input and output module, and eliminates the negative impact of process for the ESD protection.Several types of ESD protection devices are briefly introduced.Finally, the result of ESD test and analysis shows that the designed ESD protection circuit meets the design requirements of 2000V of human body model.

关 键 词：现场可编程门阵列 输入输出模块 静电放电 人体模型 静电放电总线 可控硅 

分 类 号：TN911[电子电信—通信与信息系统]