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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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IC Physical Design (PnR) at Ulkasemi

Hello Dear Readers, 

Ulkasemi has a vacancy for an IC Physical Design (PnR) role.

Job Overview:
As a full-time Trainee Engineer, the individual will be working on IC Physical Design implementation from RTL to GDSII to create design databases ready for manufacturing with a special focus on power, performance & area optimization with next-generation state-of-the-art process technologies.

Job Responsibilities:

  • Perform physical design implementation which includes Floor planning, Power Planning, Clock Tree Synthesis, Place and Route, ECO, Logic Equivalence checks
  • Timing analysis, physical & electrical verification, driving the sign-off closure meeting schedule, and design goals
  • Develop flow, methodologies, and automation scripts for various implementation steps
  • Follow the instructions, compile documents, prepare deliverables, and report to the team lead
  • Should remain up to date with the latest technology trends

Educational Qualification:
  •  B.Sc/M.Sc in EEE or equivalent degree with an emphasis on VLSI design from any reputed university
  • Willing to stay at least 3 years and build a career in VLSI industry
  • Applicants are expected to complete Digital Devices and Electronics and VLSI Design
  • Knowledge in Physical Design (PnR) or back-end ASIC/SoC design flow will be a plus
  • Familiar with Linux and scripting languages like Perl, Python, TCL/Tk, and Shell is a plus
  • Should be able to multitask and work under pressure
  • Should be able to work as a part of teams across multiple locations and time zones
  • Good analytical and debugging capabilities are a must
  • Good communication skills, both oral and written
Experience:
  • Freshers are preferred (1-2 years of relevant experience are also encouraged to apply)

 

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