Important Design Parameters for PCB Layout

• Vias (Conductive Holes)

  • Minimum Aperture: 0.3mm (12mil)
  • Minimum VIA Hole Diameter: 0.3mm (12mil)
  • Via Hole to Hole Spacing: ≥6mil
  • Pad to Outline Spacing: 0.508mm (20mil)

• Line Design

  • Minimum Line Spacing: 6mil (0.153mm)
  • Minimum Line Width: 6mil (0.153mm)
  • Line to Outline Line Spacing: 0.508mm (20mil)

• PAD Pad (Plug-in Hole)

  • Outer Ring of Plug-in Hole: ≥0.2mm (8mil)
  • Plug-in Hole to Hole Spacing: ≥0.3mm
  • Size of Plug-in Hole: Must be larger than component pins
  • Pad to Outline Spacing: 0.508mm (20mil)

• Solder Mask

  • SMD Window Size: ≥0.1mm (4mil)

• Character Design

  The character width should be ≥0.153mm (6mil) and the height should be ≥0.811mm (32mil). The ideal ratio between width and height is 5.

• Non-Metallized Slot Holes

  Minimum Spacing of Slot Holes: ≥1.6mm

• Imposition

  • Imposition Gap for Gap Imposition: ≥1.6mm
  • Gapless Imposition Gap: ~0.5mm
  • Process Edge: ≥5mm

Latest Information: When designing PCB layouts, it is crucial to consider the size and spacing of vias, lines, pads, solder masks, characters, slot holes, and imposition to ensure smooth production and high-quality results. Keeping these design parameters in mind will help in creating efficient and reliable printed circuit boards.