August, 2014
www.us-
tech.com
Franklin, MA — Solder Paste compaction, a long- standing problem with pressurized enclosed media printing systems, has been eliminated with the MPM® EnclosedFlow™ printing system. According to the company, this conclusion follows a compre- hensive program of exhaustive testing and cus- tomer production line evaluations. The Enclosed- Flow was officially introduced to the market more than a year ago. Compaction of solder paste in an enclosed
media system results, in part, from extended pres- surization of the paste, combined with inadequate refreshment of the paste in vulnerable areas of the paste-containing enclosed chamber. Compaction results in poor printing performance, print defects, and costly waste, as the compacted paste is no longer usable and must be removed and replaced. The EnclosedFlow is designed with an inno-
vative "first in, first out" flow scheme for the solder paste. This is an evolved technology that originated with the successful MPM Rheometric Pump. Constant engineering evaluations and cus- tomer feedback led to this next-gen- eration printing solution. Simple in design and easy to
clean, EnclosedFlow doesn't require manipulation or mixing of the paste inside the chamber in any way. Pres- sure on the paste volume in the sup- ply cartridges is only applied when the chamber needs to be refilled. During production, a mechanical plunger applies a much lower pres- sure to the chamber volume only. This is significant, because by mini- mizing the time that paste is under pressure to only the times when it needs to be applied, and by keeping
Schleuniger Intros Coax Stripping Machine
Manchester NH — Schleuniger, Inc.'s CoaxStrip 5200 is a semi-automatic, multi-step coaxial cable stripping machine for coaxial, multi-conductor cable and single conductor wire.
Paste dispensing system.
the paste moving forward and constantly refreshed, the potential for compaction is eliminated. This new printing technology offers signifi-
Page 23 Speedline Eliminates Solder Paste Compaction Problems
cant process and cost advantages over printing with metal squeegee blades. EnclosedFlow has an all-new positive-displacement, motor-driven pres- sure system that controls paste chamber pressures to within ±0.1 psi, for tight process control, and de- livers superior volume/yield on fine pitch pads. The system enables printing fine features
such as 01005s and 0.3mm pitch CSPs with up to 50 percent greater volume and 25 percent lower deviation than squeegee blades. EnclosedFlow is also excellent for high-volume fills such as paste- in-hole, where complete barrel filling is desired. It generates paste savings in many cases in excess of
50 percent, resulting in a fast payback. Contact: Speedline Technologies, 16 Forge
Park, Franklin, MA 02038 % 508-520-0083 fax: 508-520-2288
E-mail:
info@speedlinetech.com Web:
www.speedlinetech.com
Semi-automatic Coaxstrip 5200. The machine's universally de-
signed blades, centralizers and clamping jaws mean it can process a full range of cables without the need for mechanical adjustments, saving the user valuable time and increas- ing output when switching between applications. The CoaxStrip 5200 also offers user-friendly features such as easy access to the LED lit working area and an intuitive, menu- driven data input system that allows cable programs to be created, saved and recalled quickly, ensuring con-
sistent, repeatable results each time. Contact: Schleuniger, 87 Colin
Dr., Manchester, NH 03103 % 603-668-8117 fax: 603-668-8119
E-mail:
sales@schleuniger.com Web:
www.schleuniger-na.com
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