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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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ASIC Design for Testability Engineer at Google

 Hello Dear Readers,

Currently, Google Bangalore has a vacancy for an ASIC Design for Testability Engineer.

Minimum qualifications:

  • Bachelor's degree in Electrical Engineering or equivalent practical experience.
  • Experience with ATPG, LV, BIST, JTAG tools and flow.
  • Experience in DFT of IPs (e.g., CPU, GPU, DDR).

Preferred qualifications:

  •  Knowledge of high-performance design DFT techniques.
  •  Ability to scale DFT, with a focus on minimal area overhead.
  •  Understanding of the end-to-end flows of Design, Verification, DFT, and PD.
  •  Proficient with a scripting language such as Perl.
  •  Proficient with Synthesis, Lint, CDC, LEC and DFT timing, and STA.

Responsibilities:

  • Work on a team of DFT engineers, working closely with RTL and Physical Designer engineers. 
  • Write basic to complex scripts to automate the DFT flow.
  • Develop tests that can be used for Production in the ATE flow. 
  • Communicate and work with multi-disciplined and multi-site teams.

 Connect with me 

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