Many CAD users dismiss schematic capture as a necessary evil in the process of creating\r\nPCB layout but we have always disputed this point of view. With PCB layout now offering\r\nautomation of both component placement and track routing, getting the des
Construction Strategy of ESD Protection CircuitAbstract: The principles used to construct ESD protection on circuits and the basic conceptions of ESD protection design are presented.Key words:ESD protection/On circuit, ESD design window, ESD current path1 引言靜電放電(ESD,Electrostatic Discharge)給電子器件環境會帶來破壞性的后果。它是造成集成電路失效的主要原因之一。隨著集成電路工藝不斷發展,互補金屬氧化物半導體(CMOS,Complementary Metal-Oxide Semiconductor)的特征尺寸不斷縮小,金屬氧化物半導體(MOS, Metal-Oxide Semiconductor)的柵氧厚度越來越薄,MOS 管能承受的電流和電壓也越來越小,因此要進一步優化電路的抗ESD 性能,需要從全芯片ESD 保護結構的設計來進行考慮。