The preferred surface mount lead form used on PLCCs, so named because the lead departs the package body near its Z-axis centre-line, is formed down the rolled under the package. Leads so formed are sh...
Shiny Li
Jan 28,2016
407 views
The clearance around a pad, track, zone or via that defines the nearest approach allowed by conductors of another signal set.
Shiny Li
Jan 28,2016
456 views
The Institute for Interconnecting and Packaging Electronic Circuits, an American organization.
Shiny Li
Jan 28,2016
579 views
A plated through-hole connecting two or more conductor layers of a multilayer printed board but not extending fully through all the layers of base material comprising the board.
Shiny Li
Jan 28,2016
1234 views
A conductive pattern which is contained entirely within a multi-layer printed board.
Shiny Li
Jan 28,2016
559 views
An electrical connection between conductive patterns in different layers of a multi-layer printed board. (See also Through Connection.)
Shiny Li
Jan 28,2016
529 views
The electrical resistance of the insulating material (determined under specified conditions) between any pair of contacts, conductors, or grounding device in various combinations. The electrical...
Shiny Li
Jan 28,2016
495 views
A positive or negative transparency made from the production master and used as an inspection aid.
Shiny Li
Jan 28,2016
530 views
A collection of units of products bearing identification and treated as a unique entity from,which a sample is to be drawn and inspected to determine conformance with the acceptability criteria. ...
Shiny Li
Jan 28,2016
430 views
INDEX EDGE MARKER, INDEXING HOLE, INDEXING NOTCH, INDEXING SLOT: See Locating Edge, Location Edge Marker,etc.
Shiny Li
Jan 28,2016
457 views
A foreign particle in the conductive layer, plating, or base material.
Shiny Li
Jan 28,2016
836 views
A check of specific components(s) or cuicuits(s) within an assembly without their de-coupling from the primary circuit.
Shiny Li
Jan 28,2016
476 views
The resistance of a parallel conductor structure to the flow of alternating current (ac), usually applied to high-speed circuits and normally consisting of a constant value over a wide range of freque...
Shiny Li
Jan 28,2016
654 views
The chemical deposition of a thin metallic coating over certain basis metals that is achieved by a partial displacement of the basis metal.
Shiny Li
Jan 28,2016
497 views
The ability of a material to absorb and retain moisture from the air.
Shiny Li
Jan 28,2016
489 views
The section of a re-flow oven held at maximum temperature. Other zones include per-heat and cooling.
Shiny Li
Jan 28,2016
579 views
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 9 |
| 2 | Xiaoyang Ma | 1 |
| 3 | Engineer | 1 |
| 4 | Christian Davies | 1 |
