Asymtek Century C-721 Series, Operation Manual

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Glossary-2
Fixturing
: A clamp or other device that holds a part in place.
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 printed circuit board (PCB).
Flow Rate
: Fluid in milligrams per second that is emerging from the valve.
Fluid Cartridge
:
See
Fluid Reservoir.
Fluid Reservoir
: The reservoir containing the dispensing fluid. It can be a syringe or cartridge.
Fluidmove for Windows NT (FmNT)
: Asymtek proprietary dispensing software for use with the Windows NT operating
system.
F-Stop
: A numbered dial on the camera lens for controlling light level by changing the size of the camera aperture.
Gauge
: Either analog or digital device used to measure internal pressure of fluid or air.
GD
: Gear Down. Lowest position of the height sensor probe.
See
Gear Up (GU).
Grounding Strap
: A strap worn on the wrist of the Operator and plugged into the Auxiliary Control Panel to prevent an
electrostatic discharge (ESD).
GU
: Gear Up. Highest position of the height sensor probe.
See
Gear Down (GD).
Heaters, Part
: Contact or impingement heated tooling located between the conveyor rails (the pre-dispense, dispense and post-
dispense area of the dispensing system). Used to heat parts during dispensing to enhance fluid viscosity and to control the cure of
the dispensed fluid.
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 the location of the
dispense head at the time of startup of the system. On Asymtek systems, the default home position is the front left corner of the
dispensing area.
I/O
: Input/Output. Communication between one component or device and another.
IC Encapsulation
: Integrated circuit encapsulation.
Icons
: Small buttons with a symbol representing the function that they perform; used to execute a menu shortcut.
Interlock Safety System
: A key activated device used to restrict access to the inside of the dispensing system.
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 dispensing system.
Light Beacon
: A status indicator attached to the top of a dispensing system. Colored lights indicate system status.
Loader, Free-Standing (FSL)
: 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.
Loop
:
See
Closed-Loop System.
Machine Offsets
: Procedures available within FmNT for determination of safe needle Z height; teaching the location of Purge
and Weigh Stations; setting needle-to-Height Sensor probe Z offset; calibrating needle-to-camera XY offset; and calculating
height sensor probe-to-camera XY offset.
Material Safety Data Sheet (MSDS)
: Information for the safe use of materials. Generally included in the fluid packaging.
Mil
: One thousandth of an inch (0.001 in.).
Needle Heater
: Consists of a temperature controller and a heater element attachment that heats the dispensing needle, enhancing
fluid viscosity.
Needle Sensor
: A sensor located near the dispensing area that records the XYZ location of the needle tip.
Needle Sensor Substrate
: A ceramic pad placed on the needle sensor and dispensed on during needle location definition
routines.