The concave formation of soldified solder between the land or pad and the component lead.
Shiny Li
Jan 22,2016
1671 views
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
1234 views
Flashscan Image Control Software: A DOS Program which sends Gerber files to the plotter.
Shiny Li
Jan 22,2016
750 views
A condition in which broken reinforcing fibres of the base material are exposed and protrude in machined or ab...
Shiny Li
Jan 20,2016
485 views
A plated through-hole in a printed circuit board that is used to provide electrical connection between a trac...
Shiny Li
Jan 20,2016
587 views
A hollow tube inserted in a terminal or printed board to provide mechanical support for component leads or ele...
Shiny Li
Jan 20,2016
604 views
Unwanted copper remaining on the base material after chemical processing.
Shiny Li
Jan 20,2016
813 views
The characteristic curve of a resin during cure showing reaction of temperature vs. time.
Shiny Li
Jan 20,2016
522 views
Removal of metal from the surface of PCB by chemical dissolution. The process is normally carried out selectively&n...
Shiny Li
Jan 20,2016
465 views
A board having a conductive pattern formed by the chemical removal of unwanted portions of the conductive foi...
Shiny Li
Jan 20,2016
452 views
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
731 views
A solution used to remove, by chemical reaction, the unwanted portion of material from a printed board.
Shiny Li
Jan 20,2016
486 views
An organic ink, lacquer, photo-resist, self-adhesive plastic tape, metal deposit or other material which will prevent sp...
Shiny Li
Jan 20,2016
524 views
The ratio of the depth of etch (conductor thickness) to the amount of lateral etch (undercut).
Shiny Li
Jan 20,2016
1096 views
Electro-Static-Discharge, the sudden transfer or discharge of electricity from one object to another.
Shiny Li
Jan 20,2016
467 views
(ESD susceptibility) The device’s ability to dissipate the energy of the discharge or withstand the current levels...
Shiny Li
Jan 20,2016
504 views
The percentage of defects not defected vs. the total inspected.
Shiny Li
Jan 20,2016
422 views
Electrical Rule Check: checks the integrity of a circuit (SCH) so that problems like open inputs, shorted outputs&n...
Shiny Li
Jan 20,2016
644 views
| Ranking | Name | Answers |
|---|---|---|
| 1 | _ Floppy Lab | 4 |
| 2 | PCBWay Team | 3 |
