ACIS SAT
ACIS SAT is the native file format of the ACIS solid modeling kernel, used by many CAD applications including AutoCAD (for 3D solids), SolidWorks, and others.
Format Summary
| Property | Value |
|---|---|
| Extensions | .sat |
| Encoding | ASCII |
| Import | ✓ |
| Export | ✓ |
| License | 3D Modeler |
Import Options
| Option | Description | Default |
|---|---|---|
| Slicing plane | Z-height for 2D cross-section extraction | 0.0 |
| Tolerance | Gap tolerance for geometry extraction | Auto |
Export Options
| Option | Description | Default |
|---|---|---|
| Extrusion height | Z-height for extruding 2D polygons to 3D | 1.0 |
| Units | Output coordinate units | Micron |
How It Works
LinkCAD reads ACIS BREP geometry and extracts 2D cross-sections by slicing at a specified Z-plane, similar to STEP import.
Common Workflows
ACIS → GDSII
Extract 2D geometry from 3D solid models for mask layout.
ACIS → DXF
Convert 3D cross-sections to 2D mechanical drawings.
GDSII → ACIS SAT
Export IC mask layout to 3D ACIS SAT for use in ACIS-based CAD applications such as AutoCAD or SolidWorks.
Technical Notes
- Only BREP data is used; mesh/wireframe representations are ignored
- The 3D Modeler license bundle is required
- SAT files from different ACIS versions are supported
CLI / Command-File Options
These option keys can be used on the command line or in command files.
Import
| Key | Type | Description |
|---|---|---|
AcisInPlane | float | Z-height for 2D cross-section extraction |
Export
| Key | Type | Description |
|---|---|---|
AcisOutUnits | int | Output coordinate units |