Power Distribution Network (PDN) Simulation for Complex Flip Chip Packages

Power Distribution Network (PDN) Simulation for Complex Flip Chip Packages 

Tabula and Physware to present at Cadence Live Silicon Valley 2009 Event

SAN JOSE, CA – Oct 01, 2009 – Physware, Inc., a provider of high-speed and high capacity 3D electro-magnetic solutions for Signal Integrity (SI), Power Integrity (PI), Electromagnetic Interference (EMI) Integrity and Simultaneous Noise Integrity (SNI), today announced that distinguished speaker from Tabula will join executives from Physware in presenting the challenges and solutions faced in Power Distribution Network (PDN) Simulation for Complex Flip Chip Packages at the Cadence Live Silicon Valley 2009 event on October 05, 2009.

Abstract: Modern programmable logic chips packages provide multiple hundreds of user I/Os switching at 100s of MHz. More advanced devices include dozens of SerDes channels with switching speeds in the multi-gigabit ranges. The situation is further exacerbated by the presence of multiple I/O power rails and high current density core logic. This creates enormous challenges, in designing robust power delivery networks (PDN), on the package. The common metrics for a robust PDN include low impedance and immunity to simultaneous switching output noise. Managing this design complexity requires access to modeling tools that offer the ability to extract and analyze complex 3D structures and provide accurate answers. This session will demonstrate, through a test package, excellent simulation to measurement correlation of various PDN structures. Full-wave electromagnetic solution has been widely used to characterize the PDN.

However, due to the ever-increasing complexity of the PDN, the prior EM techniques are all based on approximation by either assuming TEM wave propagation within power/ground planes or geometrical segmentation. On the other hand, Physware PhysWAVE uses 3D full-wave accelerated boundary element techniques and, as will be shown, provides accurate and scalable solution for PDN characterization from DC to high frequencies in a single efficient and accurate scalable solver. In terms of tool flow, Allegro Package Designer (APD) is employed for package layout generation. The .mcm file is directly imported to PhysWAVE. The desired power net, which can be either core or I/O, can be extracted and simulated. Ports are defined between the bump or BGA ball pin and the ground pin, which matches the measurement setup. PhysWAVE outputs S-parameters covering the desired frequency range. Having achieved satisfactory calibration of the tools, the methodology is established to improve the PDN structures through design optimization and to use the tools to predict performance through simulations.

It is expected that such a full-wave 3D tool flow, for the first time based on a rigorous 3d EM full-wave solver, will become necessary across many designs in the space of broadband PDN analysis and design for complex-chip packages.

Take Aways:

• Why 3D fullwave EM simulation for PDN

• Best practice to correlate measurement data with simulation results

Presenter(s):

• Suresh Subramanian (Tabula)
• Bala Vishwanath, Swagato Chakraborty, Dipanjan Gope, & Vikram Jandhyala (Physware)

Registration:  http://www.secure-register.net/cadence/cdnlive_sj_sip_1005_track4

About Physware:

Physware, Inc. provides high-speed and high-capacity 3D electromagnetic signal integrity, power integrity and EMI analysis field solutions for the microelectronics industry.   The company’s patent-pending, physics-aware technology tightly couples analysis and design methods to the underlying Maxwell’s and circuit equations, enabling robustness and efficiency at every step of the design cycle across the entire chip-package-board system and significantly reduces time to market.   Physware’s accelerated technology delivers unprecedented  capacity  handling, significantly faster speed  than current methodologies, and the ability to span the entire design cycle while maintaining concurrent, uncompromising Maxwell accuracy. 

             Physware is a venture-backed, privately-held company led by an experienced management team. The technology is based on multiple patent-pending methodologies and industry publications. For additional information, please visit www.physware.com   .

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Media Contact: 

Bala Vishwanath, Physware, Inc., 425-458-0597, media@physware.com   

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