《ESDElectrostaticDischarge基础知识.ppt

* * * * * * * * * ESD（Electrostatic Discharge）基础知识  --硕凯电子 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 关于静电放电（ESD）的等级数据 测试等级 接触放电：±2kV、±4kV、±6kV依次测试。 空气放电：±2kV、±4kV、±8kV依次测试。 水平耦合板放电： ±2kV、±4kV、±6kV 垂直耦合板放电： ±2kV、±4kV、±6kV 测试模式 230V/50Hz供电和电池模式 10次，每次放电间隔1秒。 电池供电设备，每次放电后都必须确保电荷的泻放。 环境条件要求 温度：15℃-35 15℃ 相对湿度：30%-60% 大气压：86kPa-106kPa Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 放电点的选择 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 放电点的选择 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 测试set-up Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 测试set-up Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 放电电流波形 30A尖峰电流流过CPU部分的地线！ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 静电发生器等效电路 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 人体模型 半导体器件手册给出的ESD保护等级通常基于人体模型。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 测试方法 接触放电 可触及部位，如螺钉，金属板 +/-2KV，+/4KV， +/6KV依次测试 尖头 空气放电 不可直接触及部位，如塑料外壳的缝隙、插座孔等 +/-2KV，+/4KV， +/8KV依次测试 圆头 耦合板放电 垂直耦合板（VCP）、水平耦合板（HCP） 模拟对装置附近的物体放电的影响 电池供电设备 每次放电后都必须确保电荷的泻放，如短暂接地或者通过470K泻放电阻。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 测试规格 Basic Standard: Discharge Voltage: Contact Discharge Air Discharge EN 61000-4-2:2001 +/-2KV,+/-4kv,+/-6kV (Direct/Indirect) +/-2KV,+/-4kv, +/-8 kV (Direct) Evaluation only. Created with Aspose.Slides