Doctoral Dissertations

Abstract

The Input/Output Buffer Information Specification (IBIS) model faces challenges in accurately simulating power-supply-induced jitter (PSIJ), particularly under nonlinear and time-varying power noise conditions with pre-driver stages. This work introduces advancements in IBIS model modification algorithms to enhance PSIJ simulation accuracy for high-speed drivers.

First, a correction coefficient-based approach was developed to adjust switching coefficients K_pu and K_pd using pre-driver DC jitter sensitivity, significantly improving model robustness under DC and AC power noise. However, its effectiveness diminished under large noise amplitudes due to coefficient shape dominance.

To address this, a simplified algorithm bypassed correction coefficient, directly correlating switching transitions with jitter effects, achieving improved output waveform prediction under diverse noise scenarios. Nevertheless, it struggled with accurate slew rate characterization.

An enhanced algorithm was then proposed, incorporating ratio modification and timing correction to accurately model output slopes and mitigate timing discrepancies. This approach achieved superior performance in jitter prediction, output characterization, and robustness under varied noise conditions. The algorithm was formalized in a Buffer Issue Resolution Document (BIRD) for IBIS community review, aiming to standardize these advancements in future IBIS revisions.

Advisor(s)

Hwang, Chulsoon

Committee Member(s)

Beetner, Daryl G.
Kim, DongHyun (Bill)
Drewniak, James L.
Park, Jonghyun
Yang, Zhiping

Department(s)

Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2025

Journal article titles appearing in thesis/dissertation

Paper I, found on pages 5–31, has been published in IEEE Transactions on Signal and Power Integrity.
Paper II, found on pages 32–57, has been submitted to IEEE Transactions on Signal and Power Integrity.
Paper III, found on pages 58–78, has been submitted to 2025 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity.

Pagination

x11, 81 pages

Rights

© 2025 Yifan Ding , All Rights Reserved

Document Type

Dissertation - Open Access

File Type

text

Language

English

Thesis Number

T 12507

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