A B C D E F G H IJK L M N O P QR S T UV W XYZ

Schematic
Diagram in symbolic form of a functional electronic circuit.

Scored Substrate
A substrate that has been scribed with a thin cut at the break-lines.

Screen
A network of metal or fabric strands, mounted on a frame, and upon which the film circuit patterns and configurations are superimposed by photographic means.

Screen Deposition
The laying down of a circuit pattern on a substrate using the silk screening technique.

Screening
The process whereby the desired film circuit patterns are transferred to the surface of the substrate by forcing material through the open areas of a screen using the wiping action of a soft squeegee.

Serpentine Cut
A trim cut in a film resistor that follows a serpentine or wiggly pattern to effectively increase the resistor length and increase resistance.

Sheet Resistance
The electrical resistance of a thin sheet of a material with uniform thickness as measured across opposite sides of a unit square pattern. Expressed in ohms/square.

Silk Screen
A screen of a closely woven silk mesh stretched over a frame and used to hold an emulsion outlining a circuit pattern and used in screen printing of film circuits. Used generically to describe any screen (stainless-steel or nylon) used for screen printing.

Solder Dam
A dielectric composition screened across a conductor to limit molten solder from spreading further onto solderable conductors.

Solderability
The ability of a conductor to be wetted by solder and form a strong bond with the solder.

Soldering
The process of joining metals by fusion and solidification of an adherent alloy having a melting point below about 400 degrees F.

Squeegee
The part of a screen printer that pushes the composition across the screen and through the mesh onto the substrate.

Stainless Steel Screen
A stainless steel mesh screen stretched across a frame and used to support a circuit pattern defined by an emulsion bonded to the mesh.

Step and Repeat
A process wherein the conductor or resistor pattern is repeated many times in evenly spaced rows onto a single film or substrate.


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