OECD Tax Audit Risks for Cross Border Intangible Layout Transfers
Cross-border transfers of physical layout files trigger high-risk OECD transfer pricing audits unless backed by contemporaneous DEMPE labor logs and arm's length valuation.
GDSII Transfer
Meaning
Binary data exchange formats facilitate the precise handover of integrated circuit layouts from design software to semiconductor manufacturing facilities. Engineers initiate a gdsii transfer to provide the foundry with the hierarchical geometry of the transistors, wires, and vias that make up a chip. The format governs the creation of the physical masks used in photolithography and stops applying once the design is converted into the actual patterns on the silicon wafer.
Mask Production
Foundries use the received data to generate the high-precision plates required for each layer of the fabrication process. A successful gdsii transfer ensures that the physical dimensions of the components match the intended design within nanometer tolerances. If the file contains errors the resulting masks will produce non-functional silicon.
Design Integrity
Verification tools run a comparison between the original schematic and the geometry contained in the binary file. During the gdsii transfer the software checks for design rule violations that could lead to electrical shorts or open circuits. This step is the final gate before the expensive process of chip fabrication begins.
Foundry Handover
Legal and technical documentation accompanies the file to define the manufacturing parameters and the expected yield. The gdsii transfer marks the transition from the virtual design phase to the physical production of the integrated circuit. Once the foundry accepts the file they take responsibility for the manufacturing quality.