Shiny Li
Jan 20,2016
237
Compiler
A software module that analyses and converts programs from a high-level language to binary machine codes.
Shiny Li
Jan 20,2016
316
Compatibility
In which materials can be mixed or brought into contact with no reaction or separation.
Shiny Li
Jan 20,2016
326
Cold Solder Connection
A solder connection that exhibits poor wetting and that is characterized by a greyish porous appearance.
Shiny Li
Jan 20,2016
306
Coefficient of Expansion, Thermal-CTE
The fractional change in dimension of a material for a unit change in temperature expressed in ppm/C.
Shiny Li
Jan 20,2016
365
COB
Chip on board. Component packaging technology in which bare integrated circuits are attached directly to the surface of a substrate and interconnected to the substrate most often by means of microscop...
Shiny Li
Jan 20,2016
244
Coating
A thin layer of material, either conductive or insulating, applied over components or base materials.
Shiny Li
Jan 20,2016
371
Clinched-wire through Connection
A connection made by a wire which is passed through a hole in a printed circuit board, and subsequently formed, or clinched, in contact with the conductive pattern on each side of the board, and...
Shiny Li
Jan 20,2016
474
Clearance Hole
A hole in the conductive pattern larger than, but concentric with, a hole in the printed board base material.
Shiny Li
Jan 20,2016
486
Clamshell Fixture
An in-circuit test fixture to probe both sides of a PCB.
Shiny Li
Jan 20,2016
213
Clad
(Adj). A condition of the base material to which a relatively thin layer or sheet of metal foil has been bonded at one or both of its sides, e.g. a metal clad base material.
Shiny Li
Jan 20,2016
293
Clad or Cladding
A relatively thin layer or sheet of metal foil which is bonded to a laminate core to form the base material for printed circuits.
Shiny Li
Jan 20,2016
247
Circumferential Separation
A crack in the plating extending around the entire circumference of a plated through-hole.
Shiny Li
Jan 20,2016
241
Circuit Tester
Generic term for volume tester of PCBs, such as bed-of-nails, footprint, guided probe, internal trace, loaded board, bare board and parts testing.
Shiny Li
Jan 20,2016
325
Chip Testers
Large computer-based systems that test individual ICs, especially LSI and VLSI.
Shiny Li
Jan 20,2016
307
Chemically-deposited Printed Chip on board
In this technology integrated circuits are glued and wire-bonded directly to printed circuit boards instead of first being packaged.
Shiny Li
Jan 20,2016
263
Chemical Hole Clearing
The chemical process for cleaning conductive surfaces exposed within a hole ( see also “ Etch-back ”).
Shiny Li
Jan 20,2016
260
Chemical Conversion Coating
A protective coating produced by the chemical reaction of a metal with a chemical solution.
Shiny Li
Jan 20,2016
452
Check Plots
Pen plots that are suitable for checking only. Pads are represented as circles and thick traces as rectangular outlines instead of filled-in artwork. This technique is used to enhance the transparency...
Shiny Li
Jan 20,2016
233
Characteristic Impedance
The ratio of voltage to current in a propagating wave, i.e., the impedance which is offered to this wave at any point of the line. The characteristic impedance is expressed in ohms.
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