Glossary
| ACTIVATING | A treatment that renders nonconductive material receptive to electroless deposition. |
| ADDITIVE PROCESS | A process for obtaining conductive patterns by the selective deposition of conductive material on clad or unclad base material. |
| ANNULAR RING | That portion of conductive material completely surrounding a hole. |
| ARRAY | A group of elements or circuits (or circuit boards) arranged in rows and columns on a base material. |
| ARTWORK | An accurately scaled configuration used to produce the artwork master or production master. |
| ARTWORK MASTER | The photographic film or glass plate that embodies the image of the PCB pattern, usually on a 1:1 ratio. |
| ASPECT RATIO | A ratio of the PCB thickness to the diameter of the smallest hole. |
| ASSEMBLY | A number of parts, subassemblies, or any combination thereof joined together. |
| Automated Optical Inspection (AOI) | Automatic inspection of the circuits on an etched panel (Primarily done on inner signal layers) using a machine scanner that compares the image on the panel to the original gerber files to assess any opens, shorts, reductions and extraneous copper to assure the integrity of the layer prior to the lamination process. |
| AUTOMATIC TEST EQUIPMENT (ATE) | Equipment that automatically analyzes functional or static parameters in order to evaluate performance. |
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