Instruction Manual

Glossary G-1
Glossary
AC: Alternating Current.
Bar Code Recognition System: The Bar Code
Recognition System uses a bar code label mounted on
the workpiece to select a coating sequence.
Bead Mode: Conformal coating applied in a non-
atomized stream. Available with the SC-200 Slim Swirl
Applicator and Tri-Mode Swirl Box.
Board Pins (C-740): Pneumatically actuated Board Pins
lower into holes in the workpiece to secure it precisely
in place for accurate fluid dispensing.
Board Present Sensor: Registers the presence or
absence of a workpiece prior to dispensing. It initiates
the coating sequence only when a workpiece is in place.
Brush Box: The Brush Box mounts to the Conveyor
and is used to clean the dispensing nozzle.
Carrier Height: The height that the carrier holds the
workpiece above the Conveyor or Tooling Plate.
Carrier: A device such as an Auer Boat or Lead Frame
onto which workpieces are mounted and carried during
the dispensing process.
Characterization: The process of selecting the
appropriate responses to compensate for variables in the
Conformal Coating process. The variables include
factors such as material type, temperature, thickness, air
pressure, fluid applicator velocity, and type of surface to
be coated.
Chip: Also called a die. A small piece of
semiconducting material (usually silicon) that contains a
discrete component or an embedded integrated circuit.
Circuit: A combination of electrical or electronic
components, interconnected to perform one or more
specific functions.
Circuit Breaker: An automatic switch that
automatically cuts the electrical supply to the system
when the power current exceeds the set level. Some
circuit breakers can be manually operated to turn power
off and on for servicing or maintenance purposes.
Cleaning Agent: A solvent or other cleaning liquid
recommended by the dispensing fluid manufacturer’s
Material Safety Data Sheet.
Conformal Coating: A material that is applied to a
circuit board to provide protection from chemical and
mechanical damage.
Conveyor Controller Module: The Conveyor
Controller Module monitors the SMEMA interface and
controls the Conveyor indexing operations. The inputs
and outputs are used for sensors, stop pins, board pins,
and operation of the Conveyor.
Curing Process: The second step in the Conformal
Coating process. After a coating material has been
applied, it must be cured (hardened).
Current: The flow of electrons through an electrical
circuit. Usually measured in amperes.
DC: Direct Current.
Die: See Chip.
Dispensing Area: The area where the dispensing
operations take place. Also referred to as the workcell.
Dispensing Head: The robotic fluid applicator that
moves during the dispensing operation. The Fluid
Applicator is mounted on the Dispensing Head. Also
referred to as the Z-Head or Robot.
Dispensing Runs (Wet/Dry): A wet dispensing run is
when fluid is dispensed. A dry run is when the program
is executed but no fluid is dispensed.
Dispensing Valve: Fluid Applicator.
Dual Simultaneous Mounting Bracket: Doubles
dispensing capability by accommodating two identical
applicators side by side for simultaneous dispensing of a
single fluid.
Dual Toggle Mounting Bracket: Accommodates dual
Fluid Applicators. Typically uses an SC-105, SC-200,
or SC-205 Film Coater plus a needle type Dispensing
Valve (such as Asymtek’s DV-03, DV-05 or DV-09) to
separately coat broad areas of the board, as well as areas
requiring smaller amounts of coating material
ECXP: Easy Coat for Windows XP (ECXP) is Asymtek
proprietary software for use in a Windows XP
environment, developed specifically for Conformal
Coating applications.
Electrostatic Discharge (ESD): Discharge of a static
charge on a person’s body that travels through a
conductive path to ground. An electronic component
may suffer irreparable damage when it is exposed to the
static charge. The sudden transfer of static electricity
from one object to another.
Emergency Shutdown: The dispensing system is
intentionally stopped suddenly before ending the
program or without using Pause Button to prevent injury
to personnel or damage to equipment. Shutdown is
accomplished by pushing the EMO button or switching
off the Main Circuit Breaker.
EMO: Emergency Machine Off button on the front
panel of the dispensing system. Cuts power to the
dispensing system, but does not turn off power to the
Power Manager, Computer, or Monitor. Part of the
Integrated Safety System.
End of Shift: When the Operator ends dispensing for
the day and turns off the dispensing system.