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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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Std cell Circuit Design & Characterization Engineer at Cognitive Design Technology Pvt Ltd

Hello Dear Readers,

Currently, at Cognitive Design Technology Pvt Ltd vacancy for a Std cell Circuit Design & Characterization role.

Specific Responsibilities:

  • Investigate, plan, and design and productize novel sub-threshold and near-threshold circuits and other related low power circuit techniques (e.g., adaptive body biasing, adaptive clock distributions, level shifters, customized standard cells, specialized memory structures, PDN modeling etc.).
  • Validate and refine low power circuit design techniques as part of a team that is building standard cells in advanced nodes (e.g., 12nm and beyond).
  • Work with product development teams (library characterization, Engineering, Architecture and Product Planning team) to rapidly deploy newly developed custom circuits and standard cells in products.
  • Develop and drive standard cell development activities for test and production chips owned by the Advanced Development team.
  • Maintain a relationship and collaborate with 3rd party CAD tool vendors and foundries during the development of new circuit design methodologies.


Requirement :

  • Proficiency in industry-standard EDA tools for transistor-level and circuit-level simulations, such as Cadence or Synopsys and Cadence Virtuoso Liberate/LV/Mx/Trio
  • Solid understanding of FinFET technology and its impact on standard cell library design and characterization.
  • Familiarity with circuit and layout design, static timing analysis (STA) and power analysis methodologies.
  • Strong analytical skills and attention to detail for data analysis and problem-solving.
  • Advanced process nodes (e.g., 16nm, 12nm, 6nm or below) is highly desirable.
  • Effective communication and teamwork skills to collaborate with cross-functional teams and present findings and recommendations.
  • Exceptional candidates with a Master’s degree will be considered.

Apply Here


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