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it
Interview – Don Naugler, VJ Electronix, Inc.
benefits. First, and most obvious, is
Continued from page 38 parameters for every PCA.
throughput. Pre-heating of the board always an extra PCA that can be According to Billoo Rataul, president
can be the most time-consuming part sacrificed for profiling purposes. and COO, “Our reflow process prior
of the rework process. Typically, this is
The key for Paramit was to find a tool to KIC was a leap of faith. There
performed before each of the steps. In
that could predict a profile for a PCA was no guarantee that all the PCAs
a continuous process, the pre-heat only
based upon its dimensional characteristics had experienced the prescribed time/
needs to be done once.
and thermal mass. It seemed logical that, temperature profile, we could only
using adequate historical data and proper assume it.”
The second benefit has to do with
thermal modeling, an accurate prediction KIC also has a product that solved
reliability. Each rework step puts
could be made for a new PCA with its Paramit’s second problem, KIC’s
the board through a thermal cycle.
weight and dimensions as inputs. It also Auto-Focus software tool. Running in
The continuous process reduces both
seemed probable that somebody already conjunction with the profiling software,
the thermal excursion and the total
had a solution for it. This is where KIC it leverages previous profiles to predict
time the board is exposed to elevated came in. Paramit contacted KIC, who new ones. From Paramit’s perspective,
temperatures. provided a solution for both of the it provides a close approximation to the
problems. perfect profile for a first time run.
4. The Vertex Series-A is a versatile,
Paramit installed a KIC 24/7 With all three challenges solved
all purpose x-ray system with a new
monitoring system that measures and and KIC’s 24-7 and Auto-Focus tools in
modular design based on solid SRT
records the thermal profile for every place, Paramit can demonstrate to its
single board. If the set spec limits are high-profile customers that not only is
engineering. What is the benefit
violated, it gives an instant warning. their product passing tests but that each
of modularity and the technology
This ensures a zero-defect reflow aspect of the process it has been through
borrowed from SRT?
process, which is vital to Paramit. It also has been a closed-loop process.
provides a record of all the critical reflow
The legacy of SRT includes modularity,
flexibility and upgradeability. We know
that our customers’ needs are changing.
Our goal is to make systems capable of
evolving to meet these changing needs.
System modularity allows us to
configure systems to match a variety of
applications. The Vertex is designed to
accept x-ray sources ranging from 75 to
150 kV (or higher with some additional
shielding). We also incorporate various
detectors including multiple image
intensifiers and digital panels. This
flexibility allows us to build a system for
moderate resolution to high resolution,
low to high mass samples, and low
to high magnification. And if the
customer’s needs change again, we can
easily retrofit these options in the field.
Software and controls also add to
the flexibility. The control architecture
lends itself to hardware modularity by
allowing us to easily add or subtract
axes of sample manipulation and
features such as marking systems.
The software is designed for ease
of use for operators but allows process
engineers incredible flexibility. System
operation and inspection sequences can
be edited by the user, allowing high
levels of customization without having
to recompile code or to request factory
support. When asked if we can build a
system that will…(fill in the blank)…
the answer is almost always, yes.
www.globalsmt.net Global SMT & Packaging - August 2008 – 41
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