7.4 BLDRING (IC Design)

Name

bldring - Bartels AutoEngineer IC Design Build Ring Utility

Synopsis

bldring ringdescriptionfile

Description

The bldring utility program automatically creates a chip layout template from a description file. This file contains informationen about the cells used and sections for placing an outer (rectangular) ring with bonding pad cells and other arbitrary cell placements. Only the placement sequence of the bonding pad cells must be specified for each ring side. The actual bonding pad cell placement coordinates are automatically calculated from the cell macro descriptions and the ring dimensions. Ring sections which are not occupied by bonding pads are automatically filled with metal structures for carrying two power supply signals through. Fixed cell placement coordinate specifications can be relative to the ring outline, thus allowing for pre-defined structures to be used on chip layouts with different dimensions. bldring expects the ring description file ringdescriptionfile as argument (this file must have the extension .rig, however, this file name extension should be omitted in the command line). The name of the output project file and the element name of the chip layout to be created are specified in the ring description file.

Input File Format

Start Data, End Data, Comments

The setup file format must start with the keyword ring and ends when the end of the file is reached. Commentary text can be placed between /* and */.

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Examples

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Files

See also

Chip Editor.

Diagnosis

The error messages issued by bldring are intended to be self-explanatory.