一种CMOS IC片上电源ESD保护电路

随着集成电路工艺的高速发展,特征尺寸越来越小,静电放电对CMOS器件可靠性的危害也日益增大,ESD保护电路设计已经成为IC设计中的一个重要部分.讨论了两种常见的CMOS集成电路电源系统ESD保护电路,分析了它们的电路结构、工作原理和存在的问题,进而提出了一种改进的电源动态侦测ESD保护电路.使用HSPICE仿真验证了该电路工作的正确性,并且在一款自主芯片中使用,ESD测试通过士3000 V.

Power System ESD Protection Circuit Design in CMOS IC

With the development of VLSI process,the character dimension is getting smaller and smaller while the damage of electrostatic discharge is markedly increasing in the MOS device's reliability,ESD protection circuit has become an important part of IC design.Two common power system ESD protection circuits in CMOS IC are discussed,their circuit structure and working theories are analyzed;and an improved dynamic detection power system ESD protection circuit is proposed.The simulation result with HSPICE proves it...