Reading PCB and Package Layouts

Scope: pcbFileRead handles both PCB boards and IC/SiP packages. ODB++ and Allegro files may contain package-level designs (BGA substrates, interposers, embedded passives). The workflow is identical — the format determines what's inside, not the function name.

When to Use

• Importing Gerber files (.gtl, .gbl, .gbr, etc.) into MATLAB for visualization or EM analysis
• Reading ODB++ archives (zipped or unzipped) to inspect board or package layouts
• Importing Cadence Allegro .brd files
• Inspecting cadnets, components, layers, pins, or shapes from imported layouts
• Extracting metal layer polygons from Gerber files for use in custom designs
• Building a pcbComponent from externally designed layouts for S-parameter analysis

When NOT to Use

• Exporting designs to Gerber files — use matlab-write-pcb-layout
• Building PCB structures from scratch with shape primitives — use matlab-assemble-pcb-layout
• Running EM analysis after import — use matlab-analyze-em
• Defining substrates or stackup materials — use matlab-manage-pcb-material