Circuit Board Glossary


The PCB printed circuit glossary is designed to give you definitions to some of the words and phrases you will come across in doing business with Sunstone Circuits. While not exhaustive, it provides useful information about PCB circuits, circuit board design, and circuit board construction.

Printed Circuit Boards (PCB) Glossary


  • Annular Rings

  • Aperture Information

  • Aspect Ratio

  • Board Thickness

  • Build Time

  • Clearances

  • Component Side

  • Continuous Outline

  • Controlled Impedance

  • Copper (Finished Copper) Weight

  • CTI (Comparative Tracking Index)

  • Cut Lines

  • Date Code

  • Design Review (Full-Featured)

  • Document Retention

  • Drawing or Print

  • Drill File (aka. Excellon Drill File)

  • Drill Tool Description

  • Electrical Test

  • Embedded Traces

  • ENIG (Electroless Nickel Immersion Gold)

  • File Submission

  • Files: Eagle

  • Files: Gerber

  • Files: Ivex

  • Files: Protel

  • Flex

  • Gerber Viewers

  • Gold Fingers (Linear Inches)

  • HASL (Hot Air Solder Level)

  • Individual Route

  • Inspection Guidelines

  • Internal Power and Ground Layers

  • Internal Signal Layers

  • Layer construction for Multilayer designs

  • Layer Sequence

  • Layers

  • Lot Code

  • Manufacturing Capabilities

  • Minimum Traces & Spacing

  • Non-Plated Holes

  • Non-Recurring Expense (NRE)

  • Non-Supported Holes

  • Number of Holes

  • Order of Precendence

  • Pad

  • Part Number

  • PCB123

  • Plated Through Holes (PTH)

  • Quantity

  • Readme File

  • Revision

  • Rogers Material 4350

  • RoHS (Reduction of Hazardous Substances) Compliance

  • Silkscreen, Nomenclature, or Legend (Artwork)

  • Silver

  • Single-Sided Boards

  • Size X & Y (board size)

  • Smallest Hole

  • Solder Mask

  • Solder Mask Color

  • Standard 24 Drill Sizes

  • Stencil

  • Surface Mount Pitch

  • Tab Routing (with & without perforation holes)

  • Tolerances

  • Traces and Spaces

  • UL (Underwriters Laboratory) Marking

  • V-Scoring

  • Vias

  • Zip File