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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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GPU Implementation Engineer at Qualcomm

  Hello Dear Readers,

Currently at Qualcomm Bangalore vacancy for GPU Implementation Engineer role.

Job Area:

Engineering Group, Engineering Group > Hardware Engineering

General Summary:

  • Participate in the development of ASICs, with emphasis in Constraint development, Synthesis, Static Timing Analysis (STA), Power Estimation and driving clock tree synthesis.
  • Create design of experiments and do detailed PPA comparison analysis to improve quality of results, tuning recipes and setting course for the projects going forward.
  • Work closely with RTL design, DFT, PD Implementation, Power  teams to optimize Performance, Power and Area (PPA) for best PPA
  • Proficient in constraint generation and validation.
  • Tabulate metrics results for analysis comparison.
  • Develop Rapid Physical synthesis Convergence Methodologies and Automation for optimal PPA.
  • Help all team members in resolving their technical queries and keep project on track.
  • Develop new flow and methodologies to keep improving QOR.

Minimum Qualifications:

  • 1-3 years of experience in ASIC Physical synthesis/STA
  • Expertise in Synopsys/Cadence Synthesis tools
  • Expertise with STA with prime time/Tempus.
  • Good Experience in synthesis timing closure and interactions with DFT and PD.
  • Expertise in Low power flows for CLP, UPF ( Cadence low power, Unified power format)
  • Experience in formal verification with Cadence LEC
  • Expertise in ECO flows using conformal/Formality ECO.
  • Experience in Spyglass Lint/CDC checks and waiver creation
  • Experience in RTL HDL languages Verilog/VHDL.
  • Understanding of RTL to GDS flow
  • Expertise in Perl, TCL language
  • Excellent collaboration skill with all stakeholders is a must.
  • Excellent communication skills are a must.

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