User Manual

Glossary - 4
SEMI: Semiconductor Equipment
and Materials International. An
organization which defines protocols
for the semiconductor industry.
serial communication ports: PC
ports designed to facilitate serial
communication between the PC and
another device.
service stations: The Purge and
Weigh Stations on a dispensing
system.
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.