DesignCon is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Welcome to the DesignCon 2020 agenda and presentation download site. Here you can view and download conference and/or Chiphead Theater presentations before, during, and after the event. If you’re looking for a presentation from a specific session that you’re unable to find here, it is likely because the presenter has not provided permission for external use or has not yet shared their presentation with us. Please check back after the event for a more complete catalogue of available presentations.

Optimization of Material Characterization & Tolerance Design on Differential Stripline

Shiju Sui  (signal integrity engineer, ZTE)

Haidan Yu  (signal integrity engineer, ZTE)

Jing Lin  (signal integrity engineer, ZTE)

Yi Chen  (signal integrity engineer, ZTE)

Zhifen Xie  (signal integrity engineer, ZTE)

Location: Ballroom D

Date: Wednesday, January 29

Time: 12:00pm - 12:45pm

Track: 04. Advances in Materials & Processing for PCBs, Modules & Packages

Format: Technical Session

Pass Type: 2-Day Pass, All-Access Pass, Alumni All-Access Pass - Get your pass now!

Vault Recording: TBD

Audience Level: All

The actual PCB material parameters(DK, DF, and roughness) are usually different from which provided in datasheet. This paper proposes a method of extracting material characteristics without destroying PCB.
Firstly, the algorithm is based on delta-L method with optimized AFR de-embedding method and RLGC model.
Then geometry parameter is detected by impedance. A local optimization algorithm is used to extract DK, DF, and roughness.
Moreover, a probability prediction method is proposed to evaluate skew characteristics. 
Based on the above methodology and  tolerance design, key parameters with reduced diversity, are proposed in the paper.


An optimized algorithm for more accurate material characterization based on RLGC model and AFR de-embedding is proposed.
A skew distribution estimating method is derived.
The two key factors affecting channel IL are directed by tolerance design.
Product volatility is reduced to about 70% after tolerance distribution.

Presentation Files