%0 Journal Article %T A novel technique for CAD-optimization of analog circuits with bipolar transistors %A B. Dimov %A V. Boos %A T. Reich %A Ch. Lang %J Advances in Radio Science : Kleinheubacher Berichte %D 2009 %I Copernicus Publications %X In this paper, a novel approach for robust automatic optimization of analog circuits with bipolar transistors is presented. It includes additional formal parameters into the device model cards, which sweep the model parameters smoothly between the different device types. In this way, not only the sizing, but also the choice of the device type is committed to the optimization tool, thus improving the efficiency of the design process significantly. %U http://www.adv-radio-sci.net/7/219/2009/ars-7-219-2009.pdf