標題: | Accurate Systematic Model-Parameter Extraction for On-Chip Spiral Inductors |
作者: | Chen, Hao-Hui Zhang, Huai-Wen Chung, Shyh-Jong Kuo, Jen-Tsai Wu, Tzung-Chi 電信工程研究所 Institute of Communications Engineering |
關鍵字: | Inductor model;parameter extraction;spiral inductors |
公開日期: | 1-十一月-2008 |
摘要: | A systematic model-parameter-extraction technique is presented for accurately modeling on-chip spiral inductors in radio frequency integrated circuits (RFICs). The model is a pi-circuit with an additional parallel RC network connecting both vertical branches to account for substrate coupling. The extraction starts with extracting the series inductance and resistance at low frequencies. Then, the oxide capacitance is evaluated in an intermediate frequency range. Afterward, the substrate effects including the substrate resistance and capacitance, as well as coupling, are extracted at higher frequencies. All the lumped circuit element values are analytically determined by the network analysis from the measured network parameters (S- or Y-parameters). The proposed approach thus can provide better circuital interpretations of the inductor behaviors for facilitating the design of RFIC inductors. Square and circular CMOS spiral and octagonal BiCMOS7 spiral inductors are investigated to test this technique. Highly accurate frequency responses by the extracted parameters are obtained over a wide frequency band without any optimization. This reveals the validation and capability of the proposed parameter-extraction method. |
URI: | http://dx.doi.org/10.1109/TED.2008.2005131 http://hdl.handle.net/11536/8173 |
ISSN: | 0018-9383 |
DOI: | 10.1109/TED.2008.2005131 |
期刊: | IEEE TRANSACTIONS ON ELECTRON DEVICES |
Volume: | 55 |
Issue: | 11 |
起始頁: | 3267 |
結束頁: | 3273 |
顯示於類別: | 期刊論文 |