Instruction Manual

Glossary - 4
skew correction: The ability of the
software to adapt to a part not oriented
correctly on the workpiece.
SMEMA: Surface Mount Equipment
Manufacturers Association.
statistical process control (SPC):
Machine performance data gathered and
stored in text files. You can review SPC
files to monitor system performance.
substrate: Any surface, part or element,
usually a PCB, that is being dispensed
upon.
substrate height: The substrate height
is a Z-axis value the dispensing system
assigns to the maximum distance the
dispense head must descend before
dispensing.
surface mount adhesive (SMA): An
adhesive used for attaching chips to
PCBs.
syringe: A cylindrical package of fluid,
typically plastic and containing 1-50 cc of
fluid. It looks similar to a medical
syringe.
teach: Entering and saving XYZ
locations.
terminal mode window: A window or
screen that allows you to type commands
for a particular device, such as:
Dispenser, Conveyor, Scale, etc.
toolbars: Accessory menus containing
icons for performing certain actions.
TS-01 Interface Simulator: A small
Asymtek device used to simulate
conveyor communication between the
dispensing system and neighboring
material handling conveyors.
ULHC: Upper Left Hand Corner.
underfill: The process of flowing epoxy
underneath a flip chip on a PCB to
completely seal the solder bumps.
URHC: Upper Right Hand Corner.
valve: A device used to control or
regulate the flow of material from a
pressurized reservoir, such as a syringe.
Valves can be actuated by several
methods, such as air pressure, augers, or
solenoids.
valve conditioning fluid: A thick blue
fluid used to condition the inside of
dispensing valves.
video overlay: The video image from
the camera placed inside a Windows area.
vision system: Includes the camera,
vision software and light source.
weigh station: A location on the
dispensing system where fluid is
dispensed into a cup and weighed for
volume.
weight-control line: A line whose
thickness is determined by the amount of
fluid weight it contains.
workpiece: An object to be dispensed
upon, such as a PCB, auer boat or
leadframe.
X-axis: Left to right movement of the
dispense head in the dispensing area.
X/Y-axis: Two axes at right angles to
each other.
Y-axis: Forward and backward
movement of the dispense head in the
dispensing area.
Z-axis: Up and down movement of the
dispense head in the dispensing area.