ICD Adds Matched Delay Optimization to Stackup Planner


Reading time ( words)

In-Circuit Design Pty Ltd (ICD), Australia, developer of the ICD Stackup and PDN Planner software, has released a Matched Delay Optimization feature for the Stackup Planner. 

Signals propagate at the speed-of-light in free space. However, this speed varies dramatically depending on the surrounding dielectric materials. Each layer, of a multilayer PCB, can have a very different propagation speed. This is particularly important for the latest high-speed DDR3/4 memory devices. The new “Matched Delay Optimization” feature, of the ICD Stackup Planner, allows you to not only match the length of busses, but takes this one step further by automatically calculating the appropriate length required to match the delay exactly. The integrated field solver simulates the flight time, of each signal layer, to quickly give you the results you need to effectively route memory.

ICD.jpg 

“A matched length of 2.3 inches for a DDR3/4 Data lane can produce up to 70ps delta, between signal layers, leaving the timing way outside the required DDR3/4 setup and hold times,” said Barry Olney, CEO. “Designers need to pay strict attention to the signal propagation, on each layer, ensuring the total flight time of the critical signals match, regardless of length. The ICD Stackup Planner now allows you to optimize this delay."

The relative signal propagation is displayed as a bar graph, once the matched length has been set. Selecting “Matched Delay” automatically optimizes the length, of each signal layer, to match the maximum delay. The user can then route the data lane, to the exact delay, in their preferred design tool.

About In-Circuit Design Pty Ltd

In-Circuit Design Pty Ltd, based in Australia, developer of the ICD Stackup and PDN Planner software, is a PCB Design Service Bureau and specialist in board level simulation. Visit www.icd.com.au.

Share

Print


Suggested Items

Words of Advice: The OEM Systems Designer

11/07/2019 | Andy Shaughnessy, Design007 Magazine
In a recent survey, we asked the following question: What advice would you give an OEM systems designer? Here are a few of the answers, edited slightly for clarity.

Dugan Karnazes Discusses His New Startup

11/07/2019 | Andy Shaughnessy, Design007 Magazine
I caught up with Dugan Karnazes again this year and discussed his new startup, Velocity Research, which is a one-stop shop for design made up of technical creatives. The Grand Rapids company is already doing design work for a variety of customers, from individuals to multinational companies.

Design For Excellence: Karen McConnell on Standards

10/31/2019 | Andy Shaughnessy, Design007 Magazine
During the IPC Summer Meetings, I spoke with Karen McConnell, senior staff CAD CAM engineer with Northrop Grumman Mission Systems. Karen is a veteran PCB designer as well as an IPC committee chair and mentor. She offered an update on some of the IPC committees she chairs, the need for more mentor programs in this industry, and why you can call something a ham sandwich if you define it correctly in the standard.



Copyright © 2019 I-Connect007. All rights reserved.