17 October 2012Manufacturing / Production Technology, Hardware & Services
GPD Global recently demonstrated its Max Series Dispense System with a PCD4H high-resolution, continuously volumetric dispense pump and a MicroDot valve.
Max Series dispensing systems offer precision dispensing over a wide range of applications, and are well suited for LED encapsulation, die attach, underfill, MEMS, micro-volume conductive adhesive and paste applications. Max series equipped with micro-volume technology enables dispensing for 0201 components as well as die attach adhesives.
To ensure uniform dispensing with phosphor filled fluids like LED encapsulation, the PCD4 ’H’ series is configured with a syringe mixer that will keep the encapsulant homogeneous throughout the dispense cycle. The adjustable speed of the syringe mixer and a rotating element designed to create turbulence ensure encapsulant homogeneity.
Repeatability of volumetric dispense with the PCD4H is not affected by varying levels of fluid in the syringe or the change in viscosity over the pot life. Additionally, repeated calibration is not required during the pot life to maintain volumetric consistency.
PCD4H is a continuously volumetric dispense pump that is not limited to a certain volume and does not require trial-and-error setup to reach a desired volume. One pump is able to dispense a full range of device sizes without any changeover.
GPD’s PCD dispensing provides advanced volumetric dispensing and is compatible with materials used in electronics assembly such as epoxies, thermal greases, underfills, oils, silicones and UV encapsulants, as well as materials outside of the electronics industry. PCD technology is designed for GPD Global platforms and may be used with other robots or tabletop operations with an easy-to-use tabletop controller.
Air-free syringe changeover is made possible with ergonomically placed bleed ports, eliminating the need to purge to remove trapped air bubbles. Additionally, using GPD S type taper tips will improve dispense performance by minimising fluid pressure at the dispense tip and enhancing fluid flow. No drip or drool is present after the dispense process.
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