Instruction Manual

17-2 Glossary
EMO: Emergency Machine OFF button,
sometimes called E-Stop. A large red button that
cuts power to the dispensing system only. Does
not turn off power to the Power Manager. Heaters
are usually turned off, but can remain hot for
some time. Part of Safety Interlock System. After
the EMO button is pressed, to reset it you must
rotate the button clockwise until it pops out.
European CE Standard: A set of standards
adopted by the European Common Market for:
safety, power, etc.
Fiducial: A distinct shape or object on the
workpiece. The vision system uses these objects
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.
Flip Chip: A die with solder bumps, placed die
circuit side-down on a PCB.
Flow Rate: Fluid in milligrams per second that is
emerging from the valve.
Fluidmove DOS (FMDOS): Asymtek
proprietary dispensing software for use in a DOS
environment.
Fluidmove for Windows (FMW): Asymtek
proprietary dispensing software for use in a
Windowsä environment.
FSL: Free-Standing Loader. A self-contained,
floor-mounted unit that transports a carrier, a part,
or a board into or out of a magazine. The
Upstream FSL holds a full magazine of carriers,
which it feeds into the dispensing system. After
processing, the Downstream FSL receives them
into an empty magazine. FSL’s gets their
instructions from programs created on the system
computer with Loadermove.
F-Stop: A numbered dial on the camera lens for
controlling light level by changing the size of the
camera aperture.
Gantry Machine: A non-conveyorized
dispensing system that has the machine and
dispense head suspended from above to allow
greater clearance for the substrate.
Gauge: Either analog or digital device used to
measure internal pressure of fluid or air.
Grounding Strap: A strap worn on the wrist of
the Operator and plugged into the Auxiliary
Control Panel to prevent an electrostatic discharge
(ESD).
Heaters: Either contact, infrared, or needle heater
modules located between the conveyor rails,
inside of the tooling plate (the pre-dispense,
dispense and post dispense area of the dispensing
system) or on the dispensing needle. Used to heat
parts during dispensing and control the cure of the
epoxy.
Height Sensor: An instrument used to locate the
surface of the substrate to determine its height and
record the information so the dispense tip can be
positioned at an exact distance above the surface,
ensuring consistent dispensing.
Home: The dispense head location whose
(X,Y,Z) location is defined as (0,0,0). The
default setting is where the dispense 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 area.
IC Encapsulation: Integrated circuit
encapsulation.
Icons: Small buttons with a symbol representing
the function that they perform; used to execute a
menu shortcut.
I/O: Input/Output. Communication between one
component or device and another.
JIT program: A just-in-time fluid delivery
schedule based on fluid shelf life. The schedule is
worked out with the distributor to prevent over-
stocking so fluid shelf life does not expire before
it is used.
KPa: Kilo Pascals. Pressure measured in
thousands of Pascals.
Lead Frame: A type of part handler where
multiple parts are imbedded in a metal tape.
LED: Light-Emitting-Diode. The needle sensor
has an LED indicator light.
Levelers: Four adjustable pedestals (feet) on the
bottom of the machine or attached Workstation.
Light Beacon: A optional safety device usually
attached to the top of a dispensing system.
Colored lights and an audible alarm indicate
machine status.
LLHC: Lower-Left-Hand-Corner.
Load Cell: A sensor located on Model NSZ
needle sensors that is used as a touch point for
substrate height measurements. The needle sensor
probe touches down on the load cell, which
records the value (Automatic Height Sensor
Calibration).