Abstract
A new method for determining the pad parasitic elements of Si-based devices is presented. Comparison between the new method and approximation method shows that the parasitic elements of the pad extracted by linear fitting method presented in this paper is more accurate. Once the pad parameters are obtained, small-signal equivalent circuit parameters of SiGe HBT implemented with AMS 0.35 μm BiCOMS technology are extracted. The extrinsic resistances are determined under 'over drive IB' bias condition, and the intrinsic elements are all calculated by using analytical method. Good agreement is achieved between simulated and measured results of the transistor over the test frequency range.
| Original language | English |
|---|---|
| Pages (from-to) | 493-497+544 |
| Journal | Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics |
| Volume | 27 |
| Issue number | 4 |
| State | Published - Nov 2007 |
| Externally published | Yes |
Keywords
- Heterojunction bipolar transistor (HBT)
- Pad
- Parameter extraction
- SiGe