Manual

G-2 Glossary
Dispensing Elements: Fundamental dispensing
elements and patterns that form the foundation for all
dispensing applications. These include dots, lines,
circles, rectangles, etc.
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. During a dry run,
the camera traces the needle path.
Dispensing Valve: A device used to control or regulate
the flow of material from a pressurized reservoir, such
as a syringe. These devices include Valves, Pumps, and
Jets. See also Jets.
DOAL: Diffuse On-Axis Light. Camera lighting
module that has both red and blue LEDs that enhance
image quality of the workpiece. Promotes rapid and
accurate identification of fiducials and other points of
reference on the workpiece.
Dynamic Dispense Control (DDC): FmNT feature that
allows the programmer to precisely control the valve for
more accurate placement of dots and lines.
E10 Equipment States: SEMI Specifications, which
describe six basic equipment states that can be used to
monitor the activity of a machine.
E58 Equipment States: SEMI Specifications, which
defines six basic equipment substates as consisting of
four alphanumeric characters.
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.
Emergency Shutdown: The dispensing system is
intentionally stopped 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. Heater power
is interrupted, but the heaters can remain hot for some
time. Part of the Integrated Safety System.
ESD: Electrostatic Discharge.
Fiducial: A distinct shape or object on the workpiece.
The Vision System uses fiducials for location reference.
Fiducial Assisted Setup: Fiducials are used to define
locations of the purge cup, scale, tactile sensor,
substrate, and needle sensor. This feature is only
available for the Camera-Assisted Scripted Valve
Offsets procedure.
Flip Chip: A die with solder bumps that is placed die
circuit side-down on a PCB.
Flip Chip Underfill: Dispensing lines of fluid around
the perimeter of a flip-chip so that the fluid flows
underneath the chip.
Flow Rate: Fluid in milligrams per second that is
dispensed from the Dispensing Valve.
Flow Rate Calibration: Flow Rate Calibration is a
weight measurement system that is used to calibrate the
weight of fluid dispensed at given times and
automatically adjust the flow rate if needed.
Fluid Files: FmNT fluid files store specific information
about fluid dispensing parameters and the Fluid
Manager. Fluid files are saved with a .flu filename
extension.
Fluid Reservoir: The reservoir contains the dispensing
fluid. It may be a syringe or off-board reservoir.
FmNT: Fluidmove for Windows NT. Asymtek
proprietary dispensing software based in a Windows NT
environment.
FmNT Online Help: The help function in FmNT that is
accessed by clicking on the Help button on most of the
windows and dialog boxes on the Monitor screen.
Fuse: A safety device that is designed to automatically
cut off the flow of electricity when the flow of current
through the fuse exceeds its rated capacity.
Gantry: A non-conveyorized dispensing area on a
non-conveyorized dispensing system.
Gauge: Either an analog or digital device used to
measure internal pressure of fluid or air in a closed
system.
Graphic Card: Computer card that outputs the video
signal to the Monitor.
Grounding Strap: A strap worn on the wrist of an
operator and plugged into the Auxiliary Operator’s
Console jacks to prevent electrostatic discharge (ESD)
that may cause damage to the workpiece.
Heater File: FmNT heater files record information
about heater configuration. Heater files are saved with a
.htc or .htr filename extension.
Heater Tooling: A Contact or Impingement Heater
tooling plate located between the Conveyor rails. These
heaters can be located in up to three Conveyor stations
(pre-dispense, dispense and post-dispense). Used to heat
workpieces to control the flow and cure time of
dispensed fluid.
Height Sensor: An electromechanical or laser device
that measures substrate height and sends a signal to the
system Computer. The height information is used to
position the dispensing needle at an exact distance
above the workpiece surface.