Sigrity Awarded U.S. Patent for Unique Voltage-Management Optimization

PowerDC™ Pinpoints Best Location for VRM Remote Sense Line, Achieves 10-30 Percent Better Overall Voltage Margin Efficiency to Streamline Voltage-Sensitive Design

CAMPBELL, Calif. — (BUSINESS WIRE) — March 5, 2012Sigrity, Inc., the market leader in signal and power integrity solutions, today announced it has been awarded U.S. Patent No. 8,080,897 for the company’s automated optimal sense location capability. The unique Sigrity technology pinpoints the best possible position to place a remote voltage regulator module (VRM) sense line on a printed circuit board or package. This single design optimization can increase the ability to meet target voltage thresholds and significantly improve overall voltage margin efficiency by 10-to-30 percent compared to seemingly reasonable alternative locations. The automated optimal sense location capability is implemented in Sigrity’s electrical and thermal simulation tool – PowerDC.

“Adding a remote VRM sense line can really help in meeting end-to-end voltage margins by detecting and controlling changes in voltage levels,” said Shahriar Mokhtarzad, a hardware engineering manager at Brocade. “The location of the VRM remote sense line is critical for effective performance. Unfortunately, it can be tricky to identify the best location for a remote VRM sense – particularly when there are multiple devices involved. PowerDC makes it quick and easy to make the best positioning choice.”

“We are pleased to receive the U.S. patent recognizing our work in automating remote sense location identification,” said Dr. Jiayuan Fang, president at Sigrity. “Even expert-level power engineers can find it difficult to pinpoint the best location for a remote sense line using judgment and experience alone. Simulation with various positioning alternatives can be helpful, but it is time-consuming. Sigrity’s technique efficiently finds the optimal sense line location and significantly shaves DC margins, thus improving efficiency and power reliability for our users.”

Sigrity’s automated remote sense line position optimization in PowerDC helps designers tackle voltage-sensitive designs by efficiently managing their DC budget. It provides additional headroom to address AC noise issues while assuring overall power efficiency, reliability and performance. The ability to deliver reliable power to circuits is critically important for the industry because reliable end-product functioning depends on staying within the power fluctuation tolerances provided on component supplier datasheets. Voltage drops can happen at every level in a chip, package and board system, and components that are distant from the power source are especially susceptible to IR drop. Designs that rely on battery power must minimize voltage drop to avoid problematic power loss, and complexity increases for designs with multiple sinks, various voltage levels and irregular plane shapes.

About PowerDC

PowerDC provides comprehensive DC analysis for today's low-voltage high-current printed circuit board (PCB) and IC package designs, and is available with an integrated thermal analysis option to enable electrical and thermal co-simulation. With PowerDC, critical end-to-end voltage margins can be assessed for every device to ensure reliable power delivery. PowerDC quickly identifies areas of excess current density and thermal hot spots to reduce risk of field failure. Unique features include sense line location optimization and the fastest available analysis of detailed structures to maximize performance and throughput. PowerDC is highly automated with a streamlined checklist workflow. Visualization options and DRC checks support rapid design improvements.

About Sigrity

Sigrity, Inc., a privately held U.S. company incorporated in 1998, delivers advanced software solutions for package physical design and for analyzing power and signal integrity in chips, packages and printed circuit boards. Sigrity’s patented electrical analysis methodologies run orders of magnitude faster than general-purpose electromagnetic tools, helping leading companies in the semiconductor, computer, graphics, communications and networking industries ensure high performance and reduce time to market. The company is headquartered in Campbell, California with direct sales and global distribution through worldwide representatives. For more information about how to ensure operational designs by using Sigrity’s package physical design and power and signal integrity analysis solutions, please visit:

Sigrity, the Sigrity logo and PowerDC are trademarks of Sigrity, Inc.


Sigrity, Inc.
Leslie Landers, 408-688-0145 ext. 148
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