Analog & Custom Layout

Analog & Custom Layout

"Our Analog and Custom Layout team has significant exposure in different domains for quality execution"

"Our Analog and Custom Layout team has significant exposure in different domains for quality execution"

Implementation Methodologies

  • Device Sizing
    • Adjust transistor sizes to achieve optimized design.
    • Logical effort is a gate delay model that takes transistor sizes into account
  • Process and Mismatching Simulation
    • Process Simulation
  • Global deviations of model parameters
    • Same change in all devices of the ASIC
    • Worse-case corner analysis: (t)yp, (f)ast, (s)low
    • Combined corners: process/voltage/temperature (PVT)
  • Local deviations of model parameters
    • Different change for each device of the ASIC
    • Pelgrom Law
    • Montecarlo statistical analysis
  • The Art of Analog Layout General Matching Rules
    • Unitary elements
    • Large area devices
    • Minimum distance
    • Same orientation
    • Same surrounding
    • Same symmetry
  • Common Centroid Arrays, PCell-Based Layout, Decoupling Guidelines
  • Physical Verification
    • Geometrical Rules
    • Design Rule Checker
  • Parasitics Extraction
    • Motivation
    • Extraction Tools
  • DFM Techniques
    • Dummy filling
    • Antenna reduction
    • Metal slotting
    • Multiple contacts
    • Extra guard rings