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April, 2011 ERSA Integrates Dispense Function into Printers
Wertheim, Germany — ERSA’s VER- SAPRINT printers now offer an easy- to-use and cost-effective option — a dispenser that adds single dots and lines dispensed after the printing process. The dispenser option an
Archimedean screw for dispensing precision, and meets all of the pre- requisites for it to be able to very accurately place the dots. One or two dispenser units can be installed in the printer, so that
two different media — either differ- ent pastes or paste and glue — are permanently available at the system, and they can be applied in one process step. The needle of the dispenser is automatically cleaned, the program cycle is totally programmable, assur- ing consistent, reproducible process parameters. This new optional dis-
penser eliminates the need for a separate dispenser deployed to set glue dots or to add more solder paste to a board assem- bly —in the many cases where the printer alone could not handle all of the PCB’s parameters. This has become a problem because of increasing miniaturization of products using stencils only 100 to 200µm thick. At this thickness, and depend-
ing on the complexity of the assem- bly, the volume of paste that can be deposited is at the limit or even slightly beyond acceptable toler- ances. One solution to this has been the use of costly step stencils, through which more paste can be deposited on individually determined positions. A paste dispenser provides a far more economical solution, but until now, a separate dispense sys- tem had to be used. According to the company, pro-
grams for the dispensing process are user-friendly and easy to generate.
The user sees an image of the layout on the monitor, and simply points to location that needs more paste; the media are set by zooming in and then
Dispensing feature integrated into the printer.
marking the location. This represents the maximum in
user friendliness. Individual parame- terizations of the dispensing sequence for each location, including its subse- quent inspection, are a matter of course. With the dispensing feature integrated into the printer, the user is gaining additional value from the printer, while at the same time increasing equipment utilization. Contact: ERSA NA, 1779
Pilgrim Rd., Plymouth, WI 53073 % 920-893-1779 E-mail:
info@ersa.de Web:
www.ersa.com
See at APEX Booth #1825.
Affordable Rework System Showcased by Martin
See us at APEX Booth 2449
Tempe, AZ — Martin is showcasing its Mini-Oven Reball/Prebump unit and Expert 10.6 rework system demonstrating the unit for the com- plete QFN solder bumping process, even for the smallest pitches. Using an unusual Hotprint Technology, the mask is not removed after printing paste, but remains on the QFN dur-
An Eye for Innovation Bringing Precision, Flexibility and Experience to Wire Processing
NEW NEW UniStrip 2300
Fully programmable benchtop wire stripper Strips wire from 10 - 32 AWG and jacketed cables up to 0.22” in diameter
Intuitive color touchscreen user interface No mechanical adjustments required
when changing wire sizes
Can strip inner conductors of jacketed cables with short breakout lengths
Trigger sensitivity automatically adjusted based on wire size
y
Mini-oven rework station. The company is also showing
Visit us at APEX – April 12-14, Booth #446
www.schleuniger-na.com/US2300_us (603) 668-8117
See us at APEX Booth 446
the Expert 10.6, a cost-effective rework system with an intuitive interface, process repeatability and semi-automated operation. A lead- ing-edge camera-driven alignment system provides an excellent solution for the automatic placement process. The hybrid platform combines both infrared and convection heating tech- nologies to achieve outstanding board temperature uniformity, thus minimizing temperature-based PCB distortion. Contact: Martin, 915 Holt
Avenue, Unit 1, Manchester, NH 03109 % 603-627-8989 E-mail:
sr@martin-rework.com Web:
www.bgarework.com
See at APEX Booth #1940.
ing reflow. The reballing function is capa-
ble of handling a diverse range of BGAs, as well as QFNs and CSPs. Processes can be completed in as lit- tle as three minutes. The simple Rapid Technology soldering profiles rigorously apply settings within the permitted thermal limits, heat at the highest advisable thermal ramp rates and maintain a safe tempera- ture zone.
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