Prof. Guofu Niu from Auburn University visited VSCLAB at UCR. Prof. Niu is an expert on device modeling,especially for bipolar devices. He is also the developer for Mextram, an industry standard compact model of bipolar transistors support by CMC.  He also gave a talk titled "RF Linearity in SiGe HBTs: Characterization, Physics and Circuit Implications" in the ECE department at UC Riverside.