Owner manual

G-2 Glossary
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 Valve, Pump, and Jet.
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.
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.
End of Shift: When the Operator ends dispensing for the
day and turns off the dispensing system.
EMO: Emergency Off button on the front and back panels
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 Safety
Interlock System.
ESD: Electrostatic Discharge.
EU: European Union.
Fiducial: A distinct shape or object on the workpiece. The
Vision System uses fiducials for location reference.
Flip Chip Underfill: Dispensing lines of fluid around the
perimeter of a flip-chip so that the fluid flows underneath
the chip to seal and protect the connections.
Flip Chip: A die with solder bumps, placed with the circuit
side of the die facing downward on a PCB.
Flow Rate: Fluid in milligrams per second that is
dispensed from the dispensing valve.
Fluidmove: Fluidmove for Windows NT or Fluidmove for
Windows XP. Asymtek proprietary dispensing software
based in a Windows environment.
FSL: Free-Standing Loader. A self-contained,
floor-mounted unit that transports a carrier or a workpiece
into or out of a dispensing system. The Upstream FSL
holds a full magazine of carriers, which it feeds into the
dispensing system. After the workpiece has been processed,
the Downstream FSL receives the board or carrier into an
empty magazine. FSL’s get their instructions from
programs created on the system computer with
LoaderMove software.
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.
Gauge: 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 Operator’s Console jacks to
prevent an electrostatic discharge (ESD) that may cause
damage to the workpiece.
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 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.
Home: The dispense head location whose X, Y, Z location
is defined as the coordinates (0,0,0). The default setting is
where the dispensing head was located when the system
was first turned on. On Asymtek systems, the default home
position is the front left hand corner of the dispensing
chamber.
I/O: Input/Output. Communication between one
component or device and another.
Icons: Small buttons on a computer screen with a symbol
representing the function that they perform. Used to
execute a menu shortcut.
Jet: A Fluidmove-controlled type of dispensing valve, such
as the DJ-2000, that dispenses fluid using a pneumatically
actuated piston/needle mechanism. A built-in heater warms
the fluid to stabilize fluid viscosity. Dispenses fluid as
small dots.
kPa: Kilo Pascals. Metric unit of pressure measurement.
Lead Frame: A type of workpiece carrier where multiple
workpieces are imbedded in a metal tape.
LCD: Liquid Crystal Display. This type of display is used
in the computer monitor.
LED: Light-Emitting-Diode. A semiconductor that emits
light. The materials used in the diode determine the color of
light. Functions as a system status indicator and as an
element in the camera light source.
Levelers: Four adjustable pedestals (feet) on the bottom of
the dispensing system.
Lift Height: The height that the workpiece is lifted by the
Lift Table at the dispense station of the conveyor.
Light Beacon: A safety device with colored lights and an
audible alarm that is attached to the top of a dispensing
system. It is part of the Safety Interlock System.
Material Safety Data Sheet (MSDS): Information sheet
for the safe usage of a specific material. It is provided by
the material manufacturer and is usually included in the
material packaging.
Maintenance: Planned or unplanned activities intended to
keep the dispensing system in good working order.
Needle Heater: Heats dispensing needle to aid in fluid
flow. Installed on some dispensing valves. Consists of a
RTD sensor and a heater element attachment. Controlled by
the dispense head controller.