Rail Based ESD Protection with RC timed rail clamps used for X-FAB digital I/O libraries

• Implemented in XH035, XB035, XL035, XC035, XC06, XB06
• CX08, XD10 in development
• Low resistive supply required
• Not suitable for HV designs where 5/3.3V supply is generated from voltage regulators
• Simulation of power-up sequence recommended
• Digital libraries with pad-based ESD protection (NMOS) in development
  
  • 0.35µm silicide block mask can be used (core module layer)
  • 0.6µm additional ESD implant required