In high ¡Vspeed digital circuits, in order to utilize the space of printed circuit boards(PCB) efficiently, the signal via is a heavily used interconnection structure to communicate different signal layers. However, the interconnection discontinuities will result in the degradation of the signal integrity and become a crucial issue for IC designers. To analyze this problem using finite difference time domain(FDTD) method, the stair case approach of interesting structure with curved metallic surface not only introduce errors due to inaccurate approximation, but consume much simulation time and memory required .
In this thesis, a conformal FDTD method of locally distorted contours is presented. By modification of Maxwell¡¦s equations in integration form, we simulate the signal via successfully and discuss several interesting issues such as resonance in power/ground plane, the simultaneous switching noise(SSN), the effect of adding ground vias in PCB, and common-mode and differential-mode drives for source, etc.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0720107-155218 |
| Date | 20 July 2007 |
| Creators | Chang, De-cheng |
| Contributors | Ken-Huang Lin, Chih-Wen Kuo, Tzyy-Sheng Horng |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0720107-155218 |
| Rights | restricted, Copyright information available at source archive |
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