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Signal Electromigration (Signal EM): Violations, Examples, and Practical Fixes

  Hello Dear Readers,   Today in this post, I will provide some deep insight into the Signal Electromigration (Signal EM): Violations, Examples, and Practical Fixes. 1. Introduction: As technology nodes shrink into the deep‑submicron and nanometer regime (7nm, 5nm, 3nm and beyond), electromigration (EM) has become a first‑order reliability concern—not only for power/ground (PG) networks but also for signal nets. Signal EM failures are often underestimated because signal currents are transient and bidirectional. However, with higher switching activity, tighter metal pitches, thinner wires, and aggressive timing closure, signal EM can cause latent or early‑life failures if not addressed properly. This article explains: What Signal EM is and how it differs from PG EM Typical Signal EM violation scenarios Detailed, practical examples Root causes behind each violation Proven solutions and best practices to fix and prevent Signal EM issues 2. What is Signal Electromigration: El...
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Physical Design Engineer at Baya Systems

Hello Dear Readers, 

Currently, at Baya Systems, there is a vacancy for a Physical Design Engineer role.

About the role: We are seeking a seasoned Physical Design Engineer with a strong background in all aspects of Physical Design and Implementation flows. The ideal candidate will play a key role in shaping our technology portfolio, bringing expertise and creativity to our solutions

Responsibilities:

  • Own RTL to GDS physical implementation flows for synthesis, floor-planning, place and route, clock tree synthesis, timing & power closure, EM/IR, PDV and final PD sign off
  • Own physical design & implementation of high-performance designs from block level to system level components
  • Deep collaboration with Micro-architects to explore performance, power and area trade-offs for high performance and low power designs
  • Physical implementation feasibility studies and design recommendations for best PPA
  • Develop methodologies and recipes for various stages of physical implementation
  • Perform various physical design validation (PDV) flows for Timing, Power, EM/IR, etc. to ensure physical design quality
  • Perform design rule checking (DRC), (LVS) checks, and other physical verification tasks

Qualifications:

  • BS, MS in Electrical Engineering or Computer Engineering or related degree
  • Experience in all aspects of physical design including synthesis, floor planning, place & route, timing & power closure, EM/IR, physical design validation, etc
  • Experience with synthesis, place & route, static timing analysis and PDV tools
  • Experience in implementing clock trees and power grids
  • Experience with scripting for physical design flow automation
  • Experience with Synopsys Design Compiler, Prime Time, ICC, Fusion Compiler etc.
  • Good knowledge of high-performance and low-power microarchitecture and logic design principles
  • Understanding of modern (sub 7nm) sub-micron technology nodes and device physics
  • Basic knowledge of System/SoC Architecture and System Verilog RTL coding
  • Strong communication and collaboration skills

 

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