Vertical Conductive Structures, Part 4: Tuning Your Signal Performance


Reading time ( words)

The objective of this article is to demonstrate the possibility of using a stitching element as an alternative to the point-to-point connections that are used with traditional via technology. Point-to-point connections have the best performance in terms of signal integrity (one via less in the connection that distorts the signal). A via is mainly a capacitive element that causes signal loss/ dispersion.

This study focuses on developing a layer transition element that minimises the loss and dispersion. We will use VeCS-2 technology (blind/hybrid) construction (Figure 1).

The advantage of using a stitching via is that we can use “traditional” orthogonal routing, which is very efficient in signal layer utilization. However, in some instances, orthogonal or Manhattan routing could yield a longer trace length, which could lead to a higher loss due to the dielectric and conductive losses.

Joan-vert-fig1.jpg

To read this entire article, which appeared in the October 2019 issue of PCB007 Magazine, click here.

Share

Print


Suggested Items

This Month in PCB007 Magazine: The Pillar Roadmap

09/16/2020 | Nolan Johnson, PCB007
As I spoke with Happy Holden about the four pillars of manufacturing, it became clear that they don’t stand on their own; they are intertwined. Happy pulls from his experience at Hewlett-Packard as he discusses benchmarking your capabilities, the competition, and market forces. He then turns that into a technology roadmap, which further drives the other pillars. Happy is adamant that to make all four pillars function properly in your business, you first need to benchmark your business and then create a roadmap. He says the roadmap identifies the specific functions required from the four pillars, and how each pillar supports the others.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

08/21/2020 | Nolan Johnson, I-Connect007
This week, the top five is full of progress in technology and financial performance. It’s more evidence that the electronics industry, at its core, continues to thrive.

Got a Question? Just Ask Joe!

08/20/2020 | I-Connect007 Research Team
A few months ago, we launched our “Just Ask” series with Happy Holden. Many readers took us up on it, sending all manner of questions for happy to answer. Now, Joe Fjelstad—inventor, technologist, author, and Flex007 columnist—is getting in on the action. Here’s your chance to pick Joe’s brain. What’s the one question about this industry that you’ve always wanted to ask Joe?



Copyright © 2020 I-Connect007. All rights reserved.