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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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RTL Front End Design Engineers at Wafer Space Bangalore

Hello Dear Readers,

Currently, at Wafer Space Bangalore vacancy for an RTL Front End Design Engineers role.

Job Responsibilities:

  • Chip integration of high complexity SOCs.
  • Coordinating with various IP owners on receivables and DV, synthesis and Emulation for deliverables
  • Spyglass/CDC for the full chip and will evaluate the incoming bugs and take appropriate action
  • Formal Verification between RTL to Netlist and Netlist to Netlist
  • Manual and Conformal ECO
  • Running Lint (Spyglass) at SoC level.
  • Chip-level integration and connectivity.
  • Debugging FV failures
  • ECO implementation.


Desired Skills and Experience:

  • 2 - 10 years of experience
  • Sound knowledge in Micro Architecture design and RTL implementation
  • Understanding of ARM SoCs with AXI/AHB buses, peripherals, CPUs, and mobile SOCs is desirable
  • Experience in Synthesis and pre-layout timing analysis
  • Understanding of DFT flow is desirable
  • Experiencing using clear case a must
  • Experienced with VHDL/Verilog/coding and tools like VCS/Verdi/Spyglass/Mentor Zero-in
  • Proficiency in LEC and formal flows.
  • Experience in Perl, TCL, and shell scripting
  • Excellent interpersonal & analytical skills with the ability to work independently

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