Shiny Li Jan 28,2016 1323

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.

Screen

Shiny Li Jan 28,2016 1528

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.

Screen Printing

Shiny Li Jan 28,2016 1422

Schematic Diagram

A drawing that shows, by means of graphic symbols, the electrical connections, components and functions of a specific electronic circuit arrangement.

Schematic Diagram

Shiny Li Jan 28,2016 1656

Saponifier

An aqueous organic or inorganic base solution with additives that promote the removal of flux.

Saponifier

Shiny Li Jan 28,2016 1404

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...

Rosin

Shiny Li Jan 28,2016 1338

Rosin Flux

The mildest of solder fluxes and generally requiring added organic activating agents.

Rosin Flux

Shiny Li Jan 28,2016 1269

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.

Roadmap

Shiny Li Jan 28,2016 1375

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.

Right-angle Edge connector

Shiny Li Jan 28,2016 1697

Ribbon Cable

A flat cable with round conductors.

Ribbon Cable

Shiny Li Jan 28,2016 1276

Rheology

Science of flow ,is the study of the flow and deformation of matter and is particularly important with regard to colloidal systems.

Rheology

Shiny Li Jan 28,2016 1247

Re-working

The act of repeating one or more manufacturing operations for the purpose of improving the yield of acceptable part.

Re-working

Shiny Li Jan 28,2016 1400

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.

Re-work

Shiny Li Jan 28,2016 1241

Reverse Image

The film pattern on a printed circuit board enabling the exposure of conductive areas for subsequent plating.

Reverse Image

Shiny Li Jan 28,2016 1222

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.

Resist

Shiny Li Jan 28,2016 1365

Resin

A high-molecular-weight organic material with no specific melting point. A polymer.

Resin

Shiny Li Jan 28,2016 1496

Resin Smear

Resin transferred from the base material onto the surface or edge of conductive pattern normally caused by drilling. Sometimes called epoxy smear.

Resin Smear

Shiny Li Jan 28,2016 1349

Residue

Any visual or measurable form of process-related contamination.

Residue

Shiny Li Jan 28,2016 1221

Repeatability

The ability of a system to return to a specific parameter, said of equipment when evaluating its consistency of processing.

Repeatability

Shiny Li Jan 28,2016 1195

Repair

The process of restoring the functional capability of a defective component or circuit.

Repair

Shiny Li Jan 28,2016 1250

Reliability

The probability that a component, device or assembly will function properly for a defined period of time under the influence of specific environment and operational conditions.

Reliability