Technology File

  • The technology file provides information regarding the desired technology used for physical implementation of the design. This includes metal widths, spacing, via definitions etc. Synopsys ICC takes a milkyway techfile format (.tf), while Cadence take a technology LEF file (.techlef).
  • It is unique to each technology. 
  • It will provide details of metal layer technology parameters such as:
    • Number and designation(name) of each metal layer/via
    • Physical and electrical characteristics for each layer/via
    • Design rules such as minimum wire widths, wire-wire spacing etc.
    • Units and precision for electrical units.
    • Colors, patterns for layer or display.


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