8layerPCB.com is focused on one engineering problem: turning an eight-layer design into a clear, reviewable fabrication request.
What this site helps you decide
Construction before routing
Work from layer roles to dielectric spacing, then evaluate impedance geometry. Keep the mechanical target and electrical reference distance separate.
Evidence before claims
Material references are identified. Calculator assumptions are visible. Production limits, certifications and delivery commitments require project-specific confirmation.
Comparable procurement
Use the same files, acceptance criteria, panel assumptions and quantity when evaluating proposals. Request approval before material or process substitution.
Useful technical content
Resources should answer a specific design question with examples, calculations, diagrams or a checklist. Draft editorial outlines are not published as finished articles.
How to use the engineering resources
The tools support early planning and checking arithmetic. They cannot inspect your routing, verify a supplier process or replace a field solver and production coupon. For an actual build, retain the fabricator-approved construction and test requirements with your released design revision.