Shiny Li
Jan 28,2016
1420
MAR(Minimum Annular Ring)
The minimum metal width, at the narrowest point between the circumference of the hole and the outer circumference of the land. This measurement is made to the drilled hole on internal layers of multi-...
Shiny Li
Jan 28,2016
989
Manhattan Distance
The orthogonal distance between two points.
Shiny Li
Jan 28,2016
651
Major Defect
A defect that could result in failure or significantly reduce the usability of the part for its intended purpose.
Shiny Li
Jan 28,2016
831
Logic diagram
A drawing that depicts the multi-state device implementation of logic functions with logic symbols and supplementary notations, showing details of signal flow and control, but not necessarily the poin...
Shiny Li
Jan 28,2016
2485
Locating Hole, Locating Notch, Locating Slot
A hole,notch or slot in the panel or printed board to enable it to be positioned accurately during manufacture and/or assembly. Synonyms: fabrication hole (or notch or slot),indexing hole, location ho...
Shiny Li
Jan 28,2016
999
Locating Edge, Locating Hole, Locating Notch, Locating Slot
A physical feature in a panel or printed board used to position the board or mounted components accurately.
Shiny Li
Jan 28,2016
677
Load Test
A mass re-flow soldering system test for the capacity repeatedly to process boards regardless of their volume though the oven.
Shiny Li
Jan 28,2016
767
Liquids
The lowest temperature at which filler metal (solder) is completely liquid.
Shiny Li
Jan 28,2016
716
Liquation
If a solder alloy with a long melting range is heated too slowly. the phase with the lowest melting point begins to flow first. The material left behind has a changed composition and a higher melting ...
Shiny Li
Jan 28,2016
1160
Lifted Land
A land that has fully or partially separated (lifted)from the base material, whether or not any resin is lifted with land.
Shiny Li
Jan 28,2016
749
Legend
A format of lettering or symbols on the printed board, e.g. Part number, component locations, and patterns.
Shiny Li
Jan 28,2016
707
Lead Projection
The distance that a component lead protrudes through the side of a board that is opposite from the one upon which the component is mounted.
Shiny Li
Jan 28,2016
593
Layer
One in a series of levels in a board on which tracks are arranged to connect components. Vias connect tracks and zones between layers.
Shiny Li
Jan 28,2016
787
Layer-to-Layer Spacing
The thickness of dielectric material between adjacent layers of conductive circuitry in a multi-layer printed circuit board.
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 4 |
| 2 | KhronoSound Audio | 1 |
