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PCB Glossary
Printed Circuit Board Manufacturing Terms
A reference guide for engineers, buyers, and designers. Updated for PCB Trace Technologies Inc.
PCB Terminology Guide – From A to Z
Term
Definition
Additive Process
Deposition or addition of conductive material onto clad or unclad base material
Ambient
The surrounding environment coming into contact with the system or component
Annular Ring
The portion of conductive material completely surrounding a hole
AOI (Automated Optical Inspection)
Automatic inspection of traces and pads using laser or video. Verifies copper feature position, size, and shape. Locates opens, missing features, or shorts
AQL (Acceptance Quality Level)
The maximum number of defectives likely to exist within a lot that is contractually tolerable
Array
A group of elements or circuits arranged in rows and columns on a base material
Artwork
An accurately scaled configuration of electronic data used to produce the artwork master
Artwork Master
The photographic image of the PCB pattern on film, usually at 1:1 scale
Aspect Ratio
The ratio of PCB thickness to the diameter of the smallest hole
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z
N O P Q R S T U V W X Y Z
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Understanding AOI and Its Critical Role in PCB Assembly
Understanding AOI and Its Critical Role in PCB Assembly
Understanding AOI and Its Critical Role in PCB Assembly
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