Common PCB Circuit Board Errors and Mistakes

Common Errors in PCB Circuit Boards

(1) Inconsistent Pin Numbers: Components in the PCB library may have different pin numbers compared to the schematic, causing NODE errors.
(2) Printing Alignment Issue: Failure to start at the origin in PCB library creation can lead to printing problems.
(3) DRC Network Division: Networks not fully connected can be identified using CONNECTED COPPER to avoid issues in complex designs.

(1) Pad Overlap: Overlapping pads can result in drilling errors and damaged holes.
(2) Irregular Graphics Layers: Misplacement of component and soldering surfaces can cause confusion.
(3) Unreasonable Characters: Improperly sized characters can hinder soldering and PCB detection.
(4) Single-Sided Pad Setting: Designing single-sided pads with incorrect apertures can lead to drilling data errors.
(5) PCB Pads with Filler Blocks: Solder mask data may not be generated correctly, affecting soldering.
(6) Electrical Ground Layer Design: Incorrect separation of heat sink and signal lines can cause errors.
(7) Grid Spacing Issue: Small grid spacing can result in film breakage during manufacturing.
(8) Graphics Proximity to Frame: Insufficient spacing can impact appearance quality and processing difficulty.
(9) Unclear Outline Frame: Design frames with clear internal parts for easy manufacturing.
(10) Uneven Graphic Design: Ensure even plating for consistent coating thickness.
(11) Short-Shaped Hole: Maintain specific ratios for special-shaped holes to ensure proper processing.
(12) Milling Profile Holes: Include positioning holes in the PCB board design.
(13) Unclear Aperture Markings: Clearly mark aperture tolerances and use metric system measurements.
(14) Inner Layer Wiring: Avoid placing heat dissipation pads on isolation tape to prevent connection failures.

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Avoid gaps in the isolation belt design to prevent misunderstandings.
Ensure the isolation band design is wide enough for accurate network judgment.
Latest Update: Studies show that a well-designed isolation belt can significantly improve signal clarity and reduce interference.