Shiny Li
Jan 28,2016
628
Semi-aqueous Cleaning
A technique involving the use of a solvent followed by hot-water rinses and drying.
Shiny Li
Jan 28,2016
809
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...
Shiny Li
Jan 28,2016
591
Screen
A network of metal or fabric standards mounted tautly on a frame and upon which the PCB’s circuit pattern is superimposed by photographic means.
Shiny Li
Jan 28,2016
727
Screen Printing
A process for transferring an image to a surface by forcing suitable media through a stencil screen with a squeegee. Also called silk screening.
Shiny Li
Jan 28,2016
615
Schematic Diagram
A drawing that shows, by means of graphic symbols, the electrical connections, components and functions of a specific electronic circuit arrangement.
Shiny Li
Jan 28,2016
716
Saponifier
An aqueous organic or inorganic base solution with additives that promote the removal of flux.
Shiny Li
Jan 28,2016
607
Rosin
A hard, natural resin (nowadays also synthetic),consisting of abietic and primaric acids and their isomers, some fatty acids and terpene hydrocarbons, that is extracted from pine trees and subse...
Shiny Li
Jan 28,2016
616
Rosin Flux
The mildest of solder fluxes and generally requiring added organic activating agents.
Shiny Li
Jan 28,2016
563
Roadmap
A printed pattern of non-conductive material by which the circuitry and components are delineated on a board to aid in service and repair of the board.
Shiny Li
Jan 28,2016
647
Right-angle Edge connector
A connector which terminates conductors at the edge of a printed board, which bringing the terminations our at right angles to the plane of the board conductors.
Shiny Li
Jan 28,2016
571
Rheology
Science of flow ,is the study of the flow and deformation of matter and is particularly important with regard to colloidal systems.
Shiny Li
Jan 28,2016
558
Re-working
The act of repeating one or more manufacturing operations for the purpose of improving the yield of acceptable part.
Shiny Li
Jan 28,2016
646
Re-work
A manufacturing step or process that is repeated to bring a non-performing or non-conforming component or circuit to a functional condition.
Shiny Li
Jan 28,2016
541
Reverse Image
The film pattern on a printed circuit board enabling the exposure of conductive areas for subsequent plating.
Shiny Li
Jan 28,2016
550
Resist
Coating material used to mask or to protect selected areas of a pattern from the action of an etchant, solder, or plating. Also see Dry Film, Resists, Plating Resists and Solder Resists.
Shiny Li
Jan 28,2016
576
Resin
A high-molecular-weight organic material with no specific melting point. A polymer.
Shiny Li
Jan 28,2016
617
Resin Smear
Resin transferred from the base material onto the surface or edge of conductive pattern normally caused by drilling. Sometimes called epoxy smear.
Shiny Li
Jan 28,2016
590
Residue
Any visual or measurable form of process-related contamination.
| Ranking | Name | Answers |
|---|
