Dual-Action Dispensing

Dual-action dispensing allows you to dispense two different fluids with two different Asymtek valves. The dual-action head controls the XYZ position of either valve, and the dispensing operation of each valve is completely independent and sequential.

Asymtek’s patented Calibrated Process Jetting (CPJ™ ) maintains volumetric accuracy during long production runs to improve process capability (CpK). Dispense patterns are programmed with a specific weight. CPJ periodically samples the dispense weight per shot and computes the number of shots for each pattern. With this data, CPJ optimizes the line speed of each valve based on the maximum specified shot interval.

Dual-action dispensing is ideal for applications that require jetting different dot sizes of the same material, or two different fluids. Examples: dam and fill encapsulation of wire bonds require a thick material for the dam and a less viscous fluid for the fill, and hybrid applications that use both conductive and non-conductive die attach epoxy.

Features

• The dual-action head uses a low-wear, recirculating ball bearing slide for smooth, linear motion which produces repeatable dispensing height
• Controlled via Fluidmove® for Windows® XP software, the user is guided through a one-time set-up to establish the offsets, fiducial alignment, dispensing, and height sense between the two valves
• Height sensing with stationary valve
• Repeatable height difference between needle tips is 0.001in. (0.025mm)
• Field upgrades available

Recommended Applications
Any application that requires two different materials in a single process. Examples include:

• Dam and Fill
• Die-Attach Epoxies

Dispensing Systems

• X-1010 Axiom™ SMT Dispenser
• X-1020 Axiom™ Semiconductor Dispenser
• X-1022 Axiom™ Semiconductor Dual-Lane Dispenser
• S-820 Spectrum™ Precision Batch Semiconductor Dispenser
• D-580 DispenseMate® Benchtop Dispensing System

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