Interview
Interview—
Krassy Petkov,
Milara Inc.
Milara are one of these dark horses that have been
fermenting with a range of out-of-the-box technologies
that turn a mundane stencil printer into a multi-featured
high-precision printing machine with simultaneous
inspection. Trevor Galbraith caught up with the
inventor and president, Krassy Petkov, as he prepares to
unveil his latest machine at APEX/IPC Expo in
Las Vegas.
Q1. I believe you are launching the
Touchprint Digital TP2929 at APEX.
Why digital?
Utilizing the latest in digital motion
control network drive systems in conjunc-
tion with our progressive scan digital vision
system, we thought this would be the per-
fect combination of technologies to launch
out printer control platform. We now have
control over all parametric functions of the
vision system that allows us to eliminate
optical components such as F-stops and
analog lighting controls.
inspect, bottom side clean and load the tion, compatibility with all flavors of solder
Q2. The original Touchprint had some
next PCB, inspect AND inspect (because paste and ability to dispense less than 300
revolutionary features, such as the vibrat-
we have two linear servo overhead camera µm dot diameters to name a few.
ing squeegee and the ultrasonic under-
gantries), print AND dot dispense, inspect
screen cleaner. Are these still included in
AND dot dispense, bottom side wipe AND Q5. Have you been able to reduce cycle
the new version?
dot dispense. times in the new printer?
Yes, our patented vibration squeegee and
SimuTech simply allows processing of
Concurrency is the key. Over the years in
bottom-side ultrasonic cleaning systems
two PCBs simultaneously, which current
large volume applications, solder paste dis-
are still viable components in this new
designs and triple track systems simply do
pensing and the bottom-side cleaner were
platform.
not.
not taken into consideration for overall
production throughput. Today that is a
Q3. I understand this new printer is fitted
Q4. One of the unique features in the
different story. With SimuTech, this will
with SimuTech technology. What is it and
original Touchprint was its dot dispensing
eliminate the tack-time addition of bottom-
how does it work?
capability. How has this improved?
side wiping, and with our new ‘dispense
SimuTech is a new ‘buzz term’ we want to
We have partnered up with Asymtek who while you print’ paste dispenser, we can
introduce to the industry. It allows us to
brings new Piezo electric dispensing head replenish the paste bead while printing.
perform multiple concurrent operations or
technology. We have successfully integrated The addition of our linear servo motion
‘simultaneous functions,’ a feature that all
their new SV-100 solder paste dot dis- technology also gave us a significant speed
other printers lack. We will be able to print
penser, which boasts many new advantages, boost when performing camera inspection
AND inspect, bottom side clean AND
such as greater speed than conventional routines. Also, having a quad-core proces-
auger type dispensers, dot and line deposi- sor certainly helps reduce cycle time when
38 – Global SMT & Packaging – March 2009
www.globalsmt.net
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