학술논문

Fast and Accurate Modeling of PCB Differential Trace Skew Compensation using ML
Document Type
Conference
Source
2021 IEEE 30th Conference on Electrical Performance of Electronic Packaging and Systems (EPEPS) Electrical Performance of Electronic Packaging and Systems (EPEPS), 2021 IEEE 30th Conference on. :1-3 Oct, 2021
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Signal Processing and Analysis
Three-dimensional displays
Conferences
Layout
Electromagnetic interference
Routing
Delays
Magnetic losses
High Speed
Serial
mode conversion
skew
serpentine routing
neural network
regression
Language
ISSN
2165-4115
Abstract
High Speed Serial interfaces using differential routing require intra-pair delay matching to minimize loss and electromagnetic interference due to differential to common mode conversion. Existing layout methods using geometric length are useful to avoid gross errors, but fall short as the electrical length is a non-linear 3D problem that is dependent on self-coupling and return path. This paper investigates this issue and compares different regression models to improve skew compensation accuracy and speed.