Shiny Li
Jan 26,2016
816
Flow Soldering
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
758
Flood Bar
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
603
Flexure Failure
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
742
Flexible Printed Wiring
A random arrangement of printed wiring utilizing flexible base material with or without flexible cover layers.
Shiny Li
Jan 26,2016
679
Flat Cable
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
631
Fixture
A device that enables interfacing a printed circuit board with a spring-contact probe test pattern.
Shiny Li
Jan 26,2016
646
First Pass Yield
The per centage of finished assemblies to pass all tests without re-work.
Shiny Li
Jan 22,2016
673
Fine Line Design
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
2056
Fillet
The concave formation of soldified solder between the land or pad and the component lead.
Shiny Li
Jan 22,2016
1432
Fiducial
A mark both in the artwork and etched with the circuit traces of the PCB. It is used to identify artwork orientation on the board. Global fiducials locate the overall pattern; local fiducials pi...
Shiny Li
Jan 22,2016
929
FICS
Flashscan Image Control Software: A DOS Program which sends Gerber files to the plotter.
Shiny Li
Jan 20,2016
634
Fibre Exposure
A condition in which broken reinforcing fibres of the base material are exposed and protrude in machined or ab...
Shiny Li
Jan 20,2016
749
Feed-through
A plated through-hole in a printed circuit board that is used to provide electrical connection between a trac...
Shiny Li
Jan 20,2016
696
Fault List
A listing of shorts and opens on a PCB to be repaired.
Shiny Li
Jan 20,2016
758
Eyelet
A hollow tube inserted in a terminal or printed board to provide mechanical support for component leads or ele...
Shiny Li
Jan 20,2016
993
Extraneous Copper
Unwanted copper remaining on the base material after chemical processing.
Shiny Li
Jan 20,2016
690
Exotherm
The characteristic curve of a resin during cure showing reaction of temperature vs. time.
Shiny Li
Jan 20,2016
603
Etching
Removal of metal from the surface of PCB by chemical dissolution. The process is normally carried out selectively&n...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 11 |
| 2 | KhronoSound Audio | 2 |
| 3 | john James | 1 |
| 4 | Engineer | 1 |
| 5 | LouD _ | 1 |
