Shiny Li
Jan 28,2016
1071
Primer
A coating applied before the application of an adhesive to improve the bond.
Shiny Li
Jan 28,2016
1552
Press-fit Contact
An electrical pin contact which can be pressed into a hold in a printed board to make immediate contact.
Shiny Li
Jan 28,2016
1272
Prepreg
Sheet material consisting of the base material impregnated with a synthetic resin, such as epoxy or polymide, ...
Shiny Li
Jan 28,2016
932
Pre-heat
The process portion of the re-flow heat curve in which the PCB is heated from ambient at a pre-set ...
Shiny Li
Jan 28,2016
968
Positive-acting Resist
A resist which is decomposed (softened) by light and which, after exposure and development, is removed from those&n...
Shiny Li
Jan 28,2016
1120
Positive (noun)
An artwork, artwork master, or production master in which the intended conductive pattern is opaque to light, and&n...
Shiny Li
Jan 28,2016
1609
Populated PCB
A printed board on to which all passive and active components have been assembled. Synonyms: printed board assembly...
Shiny Li
Jan 28,2016
1454
Polyimide
(kapton) Higher melting point plastic film used as base for flexible portions of flexi-rigid boards as well as ...
Shiny Li
Jan 28,2016
998
Polyimide Resins
High temperature thermoplastics used with glass to produce printed circuit laminates from multi-layer and other circuit ...
Shiny Li
Jan 28,2016
1211
Polyester
(mylar) low melting point plastic film used for cheap flexible circuits.
Shiny Li
Jan 28,2016
1289
Polarization
A technique of eliminating symmetry within a plane so that parts can be engaged in only one way in ...
Shiny Li
Jan 28,2016
1239
Poise
A centimeter-gram-second unit of viscosity equal to that of a fluid requiring a shearing force of one dyne to&...
Shiny Li
Jan 28,2016
1217
Plotting
The practice of mechanically converting X - Y position information into a visual pattern, such as artwork.
Shiny Li
Jan 28,2016
1288
Plating
A uniform coating of conductive metal upon the base material of the printed circuit board.
Shiny Li
Jan 28,2016
1204
Plating Up
The process consisting of the electrochemical deposition of a conductive material on the base material (surface holes, etc.) after the base material has been made conductive.
Shiny Li
Jan 28,2016
1171
Plating Resists
Materials which, when deposited on conductive areas, prevent the plating of the covered areas. Resists are available both as screened-on materials and as dry-film photopolymer resists.
Shiny Li
Jan 28,2016
2466
Plating Bar
The temporary conductive path interconnecting areas of a printed board to be electroplated, usually located on the panel outside the borders of such a board.
Shiny Li
Jan 28,2016
1629
Plated Through-hole
A hole with the deposition of metal (usually copper) on its sides to provide electrical connections between internal or external conductive patterns.
Shiny Li
Jan 28,2016
1180
Plate Finish
Pertaining to Laminating. The finish present on the metallic surface of metal clad base material resulting from direct contact with the laminating press plates without modification by any subsequent f...
Shiny Li
Jan 28,2016
1821
Pitting
Small holes or sharp edges on the surface of a solder joint generally caused by flux entrapment, oxidation or over-heating.
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 4 |
| 2 | Engineer | 1 |
| 3 | Ibrahim TKR | 1 |
| 4 | Engineer | 1 |
| 5 | Adilson Pierog | 1 |
| 6 | Lucas Laupichler | 1 |
