Shiny Li
Jan 28,2016
1644
Snap-off
The return of a stencil to normal level after deflection by the pressure of the squeegee moving across the surface.
Shiny Li
Jan 28,2016
1566
Snap-off Distance
The space between the top surface of the substrate and the underside of the stencil when the squeegee is not in play.
Shiny Li
Jan 28,2016
1206
SMT
Surface Mount Technology. Defines the entire body of processes and components which create printed circuit assemblies without components with leads that pierce the board.
Shiny Li
Jan 28,2016
2690
Smear
Resin, smeared over the edge of an internal copper layer of a multi-layer board during drilling, which prevents the layer from making electrical contact with the barrel of the hole.
Shiny Li
Jan 28,2016
1357
SMD
Surface Mounted Device. Any component or hardware element designed to be mounted to a printed circuit board (PCB) without penetrating the board.
Shiny Li
Jan 28,2016
1371
Slump
A spreading of the solder paste after printing but before re-flow soldering. If excessive, a loss of definition may result.
Shiny Li
Jan 28,2016
1084
Single-image Production Master
A production master used in the process of making a single printed board.
Shiny Li
Jan 28,2016
1213
Shingle-sided Board
A printed board with a conductive pattern on one side only.
Shiny Li
Jan 28,2016
1141
Simulation
The process of creating a virtual representation(a computer model)of an electronic component, circuit board, or system and applying virtual test signals to the model to verify its functionality and po...
Shiny Li
Jan 28,2016
1508
Silkscreen
Often used for legend print and means the printed reference designators on a printed wiring boards.
Shiny Li
Jan 28,2016
1298
Signal
An electrical impulse of a pre-determined voltage, current, polarity and pulse width.
Shiny Li
Jan 28,2016
1105
Signal Plane
A conductor layer intended to carry signals, rather than serve as a ground or other fixed voltage function.
Shiny Li
Jan 28,2016
1379
Signal Conductor
An individual conductor used to transmit an impressed signal.
Shiny Li
Jan 28,2016
1368
Short
Short-circuit, An abnormal connection of relatively low resistance between two points of a circuit or conductors from different nets either touch or some closer than the minimum spacing allowed for th...
Shiny Li
Jan 28,2016
2227
Shielding, Electronic
A physical barrier, usually electrically conductive, designed to reduce the interaction of electric or magnetic fields upon devices, circuits or portions of circuits.
Shiny Li
Jan 28,2016
2108
Shadowing
A condition occurring during etching in which the dielectric material, in intimate contact with the foil, is incompletely removed though acceptable etching may have been achieved elsewhere. In re-flow...
Shiny Li
Jan 28,2016
1351
Semi-aqueous Cleaning
A technique involving the use of a solvent followed by hot-water rinses and drying.
Shiny Li
Jan 28,2016
1666
Semi-additive process
A process for obtaining conductive patterns by a combination of electroless metal deposition with etching and/or electroplating. A semi-additive process is used in conjunction with a metal clad base m...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 4 |
| 2 | KhronoSound Audio | 1 |
