Shiny Li
Jan 22,2016
670
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
2041
Fillet
The concave formation of soldified solder between the land or pad and the component lead.
Shiny Li
Jan 22,2016
1428
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
923
FICS
Flashscan Image Control Software: A DOS Program which sends Gerber files to the plotter.
Shiny Li
Jan 20,2016
630
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
746
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
691
Fault List
A listing of shorts and opens on a PCB to be repaired.
Shiny Li
Jan 20,2016
756
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
988
Extraneous Copper
Unwanted copper remaining on the base material after chemical processing.
Shiny Li
Jan 20,2016
677
Exotherm
The characteristic curve of a resin during cure showing reaction of temperature vs. time.
Shiny Li
Jan 20,2016
600
Etching
Removal of metal from the surface of PCB by chemical dissolution. The process is normally carried out selectively&n...
Shiny Li
Jan 20,2016
597
Etched Printed Board
A board having a conductive pattern formed by the chemical removal of unwanted portions of the conductive foi...
Shiny Li
Jan 20,2016
870
Etch-back
The controlled removal of all resins of base material on the side wall of holes in order to expose intern...
Shiny Li
Jan 20,2016
627
Etchant
A solution used to remove, by chemical reaction, the unwanted portion of material from a printed board.
Shiny Li
Jan 20,2016
658
ETCH Resist
An organic ink, lacquer, photo-resist, self-adhesive plastic tape, metal deposit or other material which will prevent sp...
Shiny Li
Jan 20,2016
1468
Etch Factor
The ratio of the depth of etch (conductor thickness) to the amount of lateral etch (undercut).
Shiny Li
Jan 20,2016
602
ESD
Electro-Static-Discharge, the sudden transfer or discharge of electricity from one object to another.
Shiny Li
Jan 20,2016
645
ESD Sensitivity
(ESD susceptibility) The device’s ability to dissipate the energy of the discharge or withstand the current levels...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 4 |
| 2 | KhronoSound Audio | 1 |
