Featured Research

from universities, journals, and other organizations

Electronics: A faster model for speedier circuits

Date:
March 28, 2012
Source:
The Agency for Science, Technology and Research (A*STAR)
Summary:
Faster computational methods could simulate the power and signal integrity of next-generation electronic systems.

Faster computational methods could simulate the power and signal integrity of next-generation electronic systems.

The overall performance of modern computers and communications networks is dependent on the speed of electronic components, such as transistors and optical switches, as well as the quality of the wire network that powers and relays signals between these electronic components. Power and signal integrity are two important parameters for gauging the quality of a wire network, but simulating these parameters for next-generation electronic systems can take a considerable amount of time, particularly when there is a large number of components involved. Zaw Zaw Oo at the A*STAR Institute for High Performance Computing and co-workers1 have now significantly decreased the amount of computer time needed by developing a modelling technique that is much more efficient.

In general, there are two different approaches to simulating power and signal integrity of a wire network. One approach is to use exact equations to describe the power and supply networks. This approach is computationally efficient, but the exact equations are difficult to derive for complex networks -- for example, those that involve irregularly-shaped ground planes. The other approach is to use numerical methods to describe these complex networks. However, this approach not only requires considerable CPU time and memory, but also becomes unworkable for very large networks.

The researchers therefore used a hybrid approach to combine the benefits of analytical and computational models. They had previously developed a hybrid model capable of describing the power networks in multi-layer circuit boards. In their present work, they extended this model to include the signaling network, as well as loads attached to the circuit board. The researchers considered circuit boards which include one or more pairs of parallel plates that serve as electrical grounds, or deliver power. Their model treats each pair of plates as an individual circuit, in which signal and power flow can be calculated using parallel-plate and transmission line theory. Once each of the individual network have been characterized, they are combined together to describe the entire, original circuit board.

Oo and colleagues tested their model on a case consisting of a multilayer circuit board measuring 35 mm by 30 mm, which included multiple ground plates, signal traces and vias connecting different layers, and capacitors decoupling different power supply circuits. The reaction of the circuit board to input signals with frequencies up to 20 GHz was calculated using both their new hybrid model, and a numerical finite element model. While the results matched well over the entire frequency range, the new hybrid model required only 48 seconds of CPU time and 0.71 Mb of computer memory to run, compared to 1960 seconds and 74.2 Mb for the finite element approach.


Story Source:

The above story is based on materials provided by The Agency for Science, Technology and Research (A*STAR). Note: Materials may be edited for content and length.


Journal Reference:

  1. Zaw Zaw Oo, En-Xiao Liu, Xing Chang Wei, Yaojiang Zhang, Er-Ping Li. Cascaded Microwave Network Approach for Power and Signal Integrity Analysis of Multilayer Electronic Packages. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2011; 1 (9): 1428 DOI: 10.1109/TCPMT.2011.2143712

Cite This Page:

The Agency for Science, Technology and Research (A*STAR). "Electronics: A faster model for speedier circuits." ScienceDaily. ScienceDaily, 28 March 2012. <www.sciencedaily.com/releases/2012/03/120328090559.htm>.
The Agency for Science, Technology and Research (A*STAR). (2012, March 28). Electronics: A faster model for speedier circuits. ScienceDaily. Retrieved August 27, 2014 from www.sciencedaily.com/releases/2012/03/120328090559.htm
The Agency for Science, Technology and Research (A*STAR). "Electronics: A faster model for speedier circuits." ScienceDaily. www.sciencedaily.com/releases/2012/03/120328090559.htm (accessed August 27, 2014).

Share This




More Matter & Energy News

Wednesday, August 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Australian Airlines Relax Phone Ban Too

Australian Airlines Relax Phone Ban Too

Reuters - Business Video Online (Aug. 26, 2014) Qantas and Virgin say passengers can use their smartphones and tablets throughout flights after a regulator relaxed a ban on electronic devices during take-off and landing. As Hayley Platt reports the move comes as the two domestic rivals are expected to post annual net losses later this week. Video provided by Reuters
Powered by NewsLook.com
Hurricane Marie Brings Big Waves to California Coast

Hurricane Marie Brings Big Waves to California Coast

Reuters - US Online Video (Aug. 26, 2014) Huge waves generated by Hurricane Marie hit the Southern California coast. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Chinese Researchers Might Be Creating Supersonic Submarine

Chinese Researchers Might Be Creating Supersonic Submarine

Newsy (Aug. 26, 2014) Chinese researchers have expanded on Cold War-era tech and are closer to building a submarine that could reach the speed of sound. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: India Coal Strained by Supreme Court Ruling

Breakingviews: India Coal Strained by Supreme Court Ruling

Reuters - Business Video Online (Aug. 26, 2014) An acute coal shortage is likely to be aggravated as India's supreme court declared government coal allocations illegal, says Breakingviews' Peter Thal Larsen. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins