Common PCB DFM findings include insufficient annular ring, narrow solder-mask dams, copper too close to the edge, conflicting drill data, unclear board outline, unsuitable via structures and stack-up or impedance values that do not match trace geometry. The importance of each issue depends on construction and tolerance. A useful DFM report identifies the location, production impact and required decision rather than returning a generic pass or fail.
Use this answer in your project review
Save or share this page with your engineering and purchasing team. Final manufacturing conditions are confirmed after the released project files are reviewed.