Shiny Li
Jan 26,2016
808
Grid
An orthogonal network of two sets of parallel, equidistant lines used for locating points on a printed circuit board.
Shiny Li
Jan 26,2016
949
Glob Top
A coating process in which a set portion of resin is dispensed on the top of a chip or board. After spreading over the entire surface ,it is cured to form a soild protective coating.
Shiny Li
Jan 26,2016
762
Class Transition Temperature
TG-value, temperature at which resin ceases to act as a solid, Till this temperature, no separation will take place between resin/copper/reinforcement.
Shiny Li
Jan 26,2016
801
Glass Epoxy
A material used to fabricate printed circuit boards. The base material (fibre-glass) is impregnated with an epoxy filler which then must have copper laminated to its outer surface to form the material...
Shiny Li
Jan 26,2016
741
GI
Laminate made from woven glass fibre material impregnated with polyimide resin.
Shiny Li
Jan 26,2016
700
Gerber
Vector-based language, developed by Gerber Scientific Instrument Company, for sending commands to photoplotters.
Shiny Li
Jan 26,2016
765
Gas Blanket
A flowing inert gas atmosphere used to keep metal from oxidizing.
Shiny Li
Jan 26,2016
859
Fused Coating
A metallic coating, usually tin or solder alluvia, which has been melted and solidified forming a metallurgical bond to the base material.
Shiny Li
Jan 26,2016
681
Functional Test
To check an assembly using equipment that tests for the functions intended and engaging inputs and outputs.
Shiny Li
Jan 26,2016
766
Fully-Additive Process
An additive process wherein the entire thickness of electrically isolated conductors is built-up by copper.
Shiny Li
Jan 26,2016
781
FR4
Flame retardent laminate made from woven glass fibre material impregnated with epoxy resin.
Shiny Li
Jan 26,2016
933
Forced-air Convection
Convection, consisting of flow, rate, velocity and temperature, as heat transfer of fluid or gas over solder joints to be re-flowed.
Shiny Li
Jan 26,2016
840
Footprint
(See also Land Pattern).A set of properly sized and placed pads of a PCB on which a surface mounted component can be placed and soldered. Alternatively, the footprint is the board area occupied by a s...
Shiny Li
Jan 26,2016
742
Foil
A thin sheet of metal, usually copper, used as the conductor for printed circuits.
Shiny Li
Jan 26,2016
721
Flux-cored Solder
A wire of solder that contains one or more continuous flux-filled cavities along its length.
Shiny Li
Jan 26,2016
899
Flux, Activated Rosin Flux
A mixture of rosin and small amounts of organic-halide or organic-acid activator, which improves the ability of a flux to remove surface oxides from the surfaces being joined.
Shiny Li
Jan 26,2016
699
Flux Residue
A flux-related contaminant that is present on or near the surface after soldering and, if possible, should be washed away.
Shiny Li
Jan 26,2016
908
Flux
A substance used to promote or facilitate fusion, such as a material used to remove oxides from surfaces to be joined by soldering welding.
Shiny Li
Jan 26,2016
963
Flush Conductor
A conductor whose outer surface is in the same plane as the surface of the insulating material adjacent to the conductor.
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 6 |
| 2 | Engineer | 2 |
| 3 | Engineer | 1 |
