Carlsbad, CA — Asymtek introduces additional non-contact methods for jetting no-flow underfill fluids.  Using the company’s award winning non-contact DispenseJet® pump, underfill can be jetted more quickly than traditional needle dispensing in a variety of production applications. The process is an addition to Asymtek’s other methods of dispensing no-flow underfill materials.

Dramatic cuts in time spent dispensing can be achieved. With the fastest jetting method — dots on the fly or line mode — dispense time is cut in half when compared to traditional needle dispensing. Further benefits are realized from the non-contact features of the system, such as no touching of the board and no required underboard support.

Asymtek’s DispenseJet® pump, typically used for jetting surface mount adhesive in printed circuit board assemblies, has been adapted to jet no-flow underfill fluids. These no-flow jetting methods include shooting, dots on the fly, and jetting lines with patented co-axial air assist. 

The company has been working with leading no-flow underfill fluid suppliers to develop applications that can be used in a variety of production environments.

When jetting the no-flow underfill, the DispenseJet® pump traverses a small distance (typically 1mm) above the board.  The jet shoots the fluid onto the location.  Depending on the accuracy and speed required in production, either in-line dots or lines are jetted.  Asymtek recommends contacting their Applications Engineering Group before selecting a fluid appropriate for this process.

No-flow underfill material is used for enhancing the reliability of products containing flip chips and CSPs (chip scale packages) on printed circuit boards.  Using no-flow underfill allows more flexibility in board design, as less space is required between the component requiring underfill and adjacent passive components. 

The DispenseJet® pump can be used on all Asymtek’s fluid dispensing systems, including the Century® C-718 and the MillenniumÒ M-2010.  It is ideally suited for the newly introduced Axiom™ X-1010 dispensing system.Asymtek supplies award-winning automated fluid dispensing systems to the semiconductor, surface mount, electronics packaging and industrial markets. Together, Asymtek and parent company Nordson Corporation (NASDAQ: NDSN) form one of the world's largest businesses dedicated to dispensing. Their unique partnering of applications engineering and product expertise is a solid testimonial of their commitment to offer total dispensing solutions and local support to customers throughout the world. A complete review of Asymtek's automated fluid dispensing systems may be found on their Web site at http://www.asym tek.com.