Identify the exact laminate grade and thickness, copper type or profile where relevant, electrical and thermal requirements, stack-up, controlled structures, surface finish, and any permitted alternatives. Mixed PTFE and FR-4 constructions can be reviewed, but material compatibility and availability must be confirmed for the project.
Material definition
A brand name alone may not define grade, thickness, cladding, or acceptable substitute. Link each material callout to the layer construction.
- Manufacturer and laminate grade
- Core or bond-ply thickness and copper cladding
- Dk/Df frequency or test-method context when performance-controlled
- Copper profile or roughness requirement where relevant
- Thermal, dimensional, or compliance requirement
- Explicit list of permitted or prohibited alternatives
Quote and release checks
Confirm the quoted material, construction, lead-time assumption, and any proposed alternative in writing. A final electrical design decision remains with the customer's authorized engineer.
Next useful step
Final capability, commercial terms, and project records are confirmed against the actual RFQ and written project documents.