Installation Manual

Viscosity: Viscosity is a measurement of the flow
properties of a fluid. High viscosity fluids have a high
resistance to flow and low viscosity fluids have a
low resistance.
SMEMA: Surface Mount Equipment Manufacturers
Association. Established protocol for signal communication
between two or more different systems.
SMA: Surface Mount Adhesive. An adhesive used for
attaching chips to PWBs.
SVGA: Super Video Graphics Array. A video card that
produces high-quality color images at high resolution.
Syringe: A reservoir containing the dispensing fluid that is
usually attached to the Dispensing Valve.
Tactile Sensor: A sensor located adjacent to the Needle
Sensor that is used to calculate the Z-axis offset between
the Height Sensor probe and dispensing needle tip.
TFT: Thin Film Transistor. The Monitor component that
provides color images for a liquid crystal display.
Underfill: The process of flowing epoxy underneath a flip
chip on a PWB to completely seal the solder bumps.
V: Abbreviation for volt as in VAC (Volts Alternating
Current). See also AC, DC.
Valve: A FmNT-controlled type of Dispensing Valve, such
as the DV-09, that dispenses by opening and closing a
needle, spool, or pinch tube valve to start and stop the flow
of a pneumatically pressurized fluid. Fluid heating, if
required, is accomplished using a Needle Heater attached to
a Luer adapter. Can be configured to dispense dots, lines,
or patterns.
Vision Card: Computer card that receives video signals
from the Camera and performs fiducial image capture.
Vision System: Includes the Camera, light source,
Computer hardware and software, and the Monitor.
Weigh Station: A location on the Axiom X-1020
Dispensing Calibration Module where a scale measures the
weight of dispensed and sends the information to the
FmNT software for mass flow calibration.
Workpiece: Any surface, part, or element (usually a PWB)
that is being dispensed upon. Workpieces may be installed
in a carrier such as a lead frame or Auer boat.
X-Axis: Left to right movement of the Dispensing Head in
the dispensing chamber. See Figure G-1.
X-Beam: The apparatus that spans the width of the
dispensing chamber. The Dispensing Head is mounted to
the X-Beam and slides along it in the X-Axis. Includes
mechanical pulleys for the X-Axis cables.
Y-Axis: Forward and backward movement of the
Dispensing Head in the dispensing chamber.
See Figure G-1.
Z-Axis: Up and down movement of the Dispensing Head
in the dispensing chamber. See Figure G-1.
G-4 Glossary