Flame retardent laminate made from woven glass fibre material impregnated with epoxy resin.
Shiny Li
Jan 26,2016
630 views
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
728 views
(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
660 views
A thin sheet of metal, usually copper, used as the conductor for printed circuits.
Shiny Li
Jan 26,2016
575 views
A wire of solder that contains one or more continuous flux-filled cavities along its length.
Shiny Li
Jan 26,2016
566 views
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
710 views
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
568 views
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
728 views
A conductor whose outer surface is in the same plane as the surface of the insulating material adjacent to the conductor.
Shiny Li
Jan 26,2016
770 views
An organic compound having fluorine atoms in its structure to lend chemical and thermal stability to plastics.
Shiny Li
Jan 26,2016
628 views
Also called wave soldering. A method of soldering printed circuit boards by moving them over a flowing wave of molten solder in a solder bath.
Shiny Li
Jan 26,2016
631 views
A device on a screen printer that drags solder paste back to the starting point after the squeegee has made a stroke. The return is for set-up of the next stroke as it does no printing on the backstro...
Shiny Li
Jan 26,2016
577 views
A conductor failure due to repeated flexing which is indicated by an increase of resistance to a specified value for a specified time.
Shiny Li
Jan 26,2016
465 views
A random arrangement of printed wiring utilizing flexible base material with or without flexible cover layers.
Shiny Li
Jan 26,2016
578 views
A cable with two or more parallel, round or flat, conductors in the same plane encapsulated by an insulating material.
Shiny Li
Jan 26,2016
531 views
A device that enables interfacing a printed circuit board with a spring-contact probe test pattern.
Shiny Li
Jan 26,2016
476 views
The per centage of finished assemblies to pass all tests without re-work.
Shiny Li
Jan 26,2016
516 views
Printed circuit design permitting two, and nowadays even three, traces between adjacent dip Pins. It entails the use of photo-imageable solder mask (PISM).
Shiny Li
Jan 22,2016
531 views
| Ranking | Name | Answers |
|---|---|---|
| 1 | _ Floppy Lab | 4 |
| 2 | PCBWay Team | 3 |
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