A list of more than 2,000 terms and definitions regularly used in electronic manufacturing services.
A Must-Have Resource For People Who Work In OEM And The Electronic Manufacturing Industry
From A to Z, here is a preview of the 2,000+ terms you can find in the Ultimate Electronic Manufacturing Dictionary:
Annular Ring - That portion of conductive material surrounding a hole. The copper pad area that remains after a hole is drilled through the pad, measured from edge of hole to edge of pad.
Backplane - An interconnection device used to provide point-to-point electrical interconnections. It is usually a printed board that has discrete wiring terminals on one side and connector receptacles on the other side. (See also "Mother Board.")
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2000+ Terms and Definitions
Versa Electronics The Ultimate Electronic Manufacturing Dictionary
Circuit Design - Design of circuit logic that allows electronic components to perform a specific function.
Dip Soldering - The making of soldered terminations simultaneously by bringing the solder side of a printed board with through-hole mounted components into contact with the surface of a static pool of molten solder. (See also "Drag Soldering.")
E Glass - A low alkali lime alumina borosilicate glass with good electrical properties.
Flip Chip - A leadless monolithic, circuit element structure that electrically and mechanically interconnects to a base material through the use of conductive bumps.
Gerber File - Data file used to control a photo-plotter. Named after the Gerber Scientific Co., who made the original vector photo-plotter.
Hipot Test - A method in which the unit under test is subjected to a high alternating current (ac) voltage.
IMC - Intermetallic Compound. Metallic compounds that form at the interfaces between different metals, such as copper-tin compounds that form at the interface of a solder joint and a copper lead. IMCs typically have significantly different properties, such as tensile strength.
Junction Temperature - The temperature of the region of a transition between the p-type and n-type semiconductor material in a transistor or diode element.
Kanban - A scheduling system that advises manufacturers what to produce, when to produce and how much to produce. Devised by Toyota, the approach is based on demand creating a “pull.” Inventory is replenished only when visual cues like an empty bin or cart show that it’s needed.
Leakage Current - The undesired flow of electrical current over or through an insulator.
Microelectronics - The area of electronic technology with, or applied to, the realization of electronic systems from extremely small electronic elements, devices or parts.
Negative Etchback - Etchback in which the inner conductor layer material is recessed relative to the surrounding base material.
The Ultimate Electronic Manufacturing Dictionary
Outgassing - The gaseous emission from a laminate printed board or component when the board or the printed board assembly is exposed to heat or reduced air pressure, or both.
Passivation - The formation of an insulating layer to protect a surface from contaminants, moisture and particulate matter.
Quick-turn prototyping - Production on a quick turnaround basis of a small quantity of products that are used to prove the design.
Resistance Welding - Welding by a combination of pressure and heat generated by passing a high current through two mechanically joined conductors.
Sheet Resistance - The electrical resistance of a planar film of a resistive material with uniform thickness as measured across opposite sides of a unit square pattern, expressed in ohms per square.
Test Point - A special point of access to an electrical circuit that is used for electrical testing purposes.
Ultrasonic Cleaning - Immersion cleaning that is done by passing high-frequency sound waves through a cleaning medium to cause micro-agitation.
2000+ Terms and Definitions
Vendor-managed inventory - Phrase used to describe the process of a supplier managing the inventory levels and purchases of the materials he supplies.
WEEE Directive - Waste electrical and electronic equipment directive. European Community directive 2002/96/EC where manufacturers are responsible for disposing of electrical and electronic equipment waste.
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