首先放文献：
Paul G. Huray. "Surface Roughness", in The Foundations of Signal Integrity. John Wiley & Sons, Inc., Hoboken, New Jersey. 2009.
Paul G. Huray. "Impact of Copper Surface Texture on Loss: A model That Works", DesignCon. 2010.
Stephen H. Hall. "Nonideal Conductor Models", in Advanced Signal Integrity for High-Speed Digital Designs. John Wiley & Sons, Inc., Hoboken, New Jersey. 2009.
大名鼎鼎的Huray Model公式：
Modified Hammerstad Model
Modified Groisse Model
