Base material covered with metal on one or both of its sides.
Shiny Li
Jan 28,2016
644 views
The contour or shape of molten solder as formed by surface tension forces in turn controlled by wetting.
Shiny Li
Jan 28,2016
1572 views
The temperature range over which the solder alloy melts .An alloy with a single melting point, rather than a melting range, is known as a eutectic alloy .
Shiny Li
Jan 28,2016
584 views
A metal electrode leadless face surface mount component that is round with metallic cap terminations.
Shiny Li
Jan 28,2016
800 views
A condition existing in the base laminate in the form of discrete white sports or crosses below the surface of the base laminate, reflecting a separation of fibres in the glass cloth at the weave inte...
Shiny Li
Jan 28,2016
983 views
The statistical mean average time interval, usually in hours, that may be expected between failures of an operating unit. Results should be designated actual. Predicted or calculated.
Shiny Li
Jan 28,2016
909 views
Moulded Carrier Ring. A tape of fine-pitch chip package named for the method of supporting and protecting the leads. The leads are left straight; the ends of the leads are embedded in a strip of plast...
Shiny Li
Jan 28,2016
703 views
A hole size equal to the specified hole size before plating, plus the manufacturing tolerance, less twice the minimum plating thickness.
Shiny Li
Jan 28,2016
674 views
An accurately scaled pattern which is used to produce the printed circuit within the accuracy specified on the master drawing.
Shiny Li
Jan 28,2016
787 views
A document that shows the dimensional limits or grid locations applicable to any or all parts of a printed board(rigid or flexible),including the arrangement of conductive and non-conductive patterns ...
Shiny Li
Jan 28,2016
863 views
A document showing dimensional limits and grid locations for all parts of an assembly to be fabricated. It includes the arrangement of conductors and non-conductive patterns and the size, t...
Shiny Li
Jan 28,2016
500 views
Methods of soldering in which many joints are made in the same operation.
Shiny Li
Jan 28,2016
599 views
A material applied to enable selective etching, plating or the application of solder to a printed circuit board.
Shiny Li
Jan 28,2016
511 views
The distance between the reference edge of a flat cable and the nearest edge of the first conductor.(See also Edge Spacing)
Shiny Li
Jan 28,2016
885 views
The minimum metal width, at the narrowest point between the circumference of the hole and the outer circumference of the land. This measurement is made to the drilled hole on internal layers of multi-...
Shiny Li
Jan 28,2016
928 views
A defect that could result in failure or significantly reduce the usability of the part for its intended purpose.
Shiny Li
Jan 28,2016
529 views
A drawing that depicts the multi-state device implementation of logic functions with logic symbols and supplementary notations, showing details of signal flow and control, but not necessarily the poin...
Shiny Li
Jan 28,2016
671 views
A hole,notch or slot in the panel or printed board to enable it to be positioned accurately during manufacture and/or assembly. Synonyms: fabrication hole (or notch or slot),indexing hole, location ho...
Shiny Li
Jan 28,2016
1876 views
A physical feature in a panel or printed board used to position the board or mounted components accurately.
Shiny Li
Jan 28,2016
810 views
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 6 |
| 2 | Engineer | 1 |
| 3 | Stephen Newport | 1 |
