Time Domain Wave Propagation in Multilayered Integrated Circuits.
Abstract
During this period, we have (1) modeled and calculated the impedance parameters and propagation characteristics of simple structures, (2) analyzed the transient response of signal transmission on strip lines with perpendicularly crossing strips geometry and (3) the transient response of point and line sources excitation in two-layer media, (4) generalized the method of characteristics for signal propagation on nonuniformly coupled transmission lines, and (5) studied the models of for vias for interchip connections. Many integrated circuits contain strip lines at different heights that run parallel or perpendicular to each other. And we have investigated reliable models for these structures. First the capacitances associated with two offset parallel strips at different heights between ground planes are computed using the conformal mapping approach. As an extension, a simplified circuit of parallel-plate lines with transverse ridges is introduced to model two parallel strips with perpendicularly crossing strips on top. We treated it was a distributed circuit of transmission lines segments with periodical capacitive loading. In order to calculate the coupling between two lines, we reduced this structure to two equivalent single line circuits, viz. The even mode and the odd mode circuits. The Laplace transform approach can be easily applied to find out the transient response.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1987
- Accession Number
- ADA178180
Entities
People
- Jinau Kong
Organizations
- Massachusetts Institute of Technology