Chapter 7: Technologies
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7-3: I/O Control
7-3-2: CIF Control
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CIF (Caltech Intermediate Format) is used as an interchange between design systems and fabrication facilities. Control of CIF I/O is done with the CIF Preferences (in menu File / Preferences..., "I/O" section, "CIF" tab).

Figure 7.26

Project Preferences

The CIF Project Preferences let you can assign CIF names to each layer in the technology. It also offers these controls:

User Preferences

There is just one User Preference: "Input Squares Wires." When reading CIF files, the CIF "wire" statements are assumed to have rounded geometry at the ends and corners. If you check this box, CIF input assumes that wire ends are square and extend by half of their width.


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