関連記事

• Spacing between silkscreen and openings
• Silkscreen standard size
• do not design texts on the copper layer
• notes in the order are different from the designs in the files
• the bottom silkscreen is mirrored
• limited holes spacing
• silkscreen over pads
• the spacing from hole to trace
• The requirement of beveling on gold finger area
• The spacing from one hole to another is too narrow
• the spacing requirement from hole to the edge of board
• Edge plating
• the spacing requirement from slot to copper trace
• Spiral coil board
• BGA pad opening
• No Gold fingers design in file
• UL Marking
• The are some pads out of the board outline
• Design has no silkscreen layer but online is yes with silkscreen
• Some Issues concerning BGA(Ball Grid Array)