is Proud to Present 2015
5th Annual Expo & Tech Forum
4 $25 gift cards will be Raffled every hour
+ 2:30pm Exhibit Floor Raffle
(1st Thursday of the Month)
4101 E. Willow St.,
Long Beach, CA 90815
2015 Tech Expo Vendors
11am to 11:30am
Electrical Reliability as a Function of Reflow Profile
Mitch Holtzer is the Global Director of Customer
Technical Support for Alpha Metals based in South Plainfield New Jersey.
He has been with Alpha since 1998. Prior to the CTS position he had
been Global Product Manager for Preforms, Global Product Manager for
Wave Soldering Flux and GPM for Solder Paste. After becoming Director
of Product Management he was promoted to Global R&D Director.
Mitch has a B.S. in Chemistry from Purdue University and a MBA in Finance
from Temple University. He has published over 20 articles and has spoken
at IPC Apex, SMTAI International and SMTA Philadelphia numerous times.
reliability is a fundamental requirement for every circuit assembly.
Surface insulation resistance is a globally accepted standard for predicting
the electrical reliability of a printed circuit. This paper will attempt
to measure how the reflow profile used in an SMT process affects the
electrical reliability of three no-clean solder paste residues.
Three different reflow temperature vs. time profiles, a 1.5 °C/s
ramp to 230°C, a 1.5 °C/s ramp to 250°C and a 90 s soak
at 175°C with a 230°C peak, were used to reflow three lead-free
solder pastes in both air and nitrogen atmospheres. Fourier transform
infrared spectra of the reflowed flux residues shows how reflow profile
conditions and atmosphere affects the decrease of a peak around 1700
cm-1 and the appearance and increase of another peak at 1600 cm-1. The
1700 cm-1 is smaller for flux residues that were reflowed under hotter
conditions and for those that were reflowed in air. The peak at 1600
cm-1 is larger for residues exposed to hotter reflow profiles in air,
but is hardly present for residues reflowed in nitrogen. The affect
of these reflow conditions on surface insulation resistance (SIR) per
IPC-TM-650 Method 220.127.116.11 at 40°C 90% RH and 12V bias has been studied.
This measurement shows that hotter reflow conditions result in higher
SIR values for two of the pastes, as would be expected, but has a smaller
affect on the third paste.
Free for All
11:45am to 12:45pm
Oh, Flux! How Not
to Clean Electronics Assemblies
& Ed Kanegsberg
BFK Solutions LLC
President of Los Angelesbased, BFK Solutions, is a recognized expert
and consultant in critical and industrial cleaning, electronics assembly,
and contamination control. The Cleaning Lady effectively
helps companies optimize manufacturing cleaning processes, improve yield,
resolve regulatory issues, and maintain trouble-free production. Projects
include electronics assembly, medical devices, engineered coatings,
metals, pump repair, and optics. On the grounds that cleaning should
be fun, she conducts dynamic, engaging interactive workshops. She is
an active participant in the IPC 5-31D Cleaning Handbook Task Group
as well as in JS3, an interagency military group and in the ASTM medical
device Cleanliness Testing Task Force. Barbara is the editor-in-chief
of the "Handbook For Critical Cleaning, 2001, CRC Press,
with an expanded second edition in the works. Barbara received the 1996
U.S. EPA Stratospheric Ozone Protection Award in recognition of her
work in productionizing practical defluxing processes. She co-authors
columns for Controlled Environments Magazine and Process Cleaning Magazine.
Her practical experience encompasses clinical chemistry and aerospace.
Barbara has a B.S. in Biology from Bryn Mawr College and an M.S. in
Biochemistry from Rutgers University.
it the irate customer? Is it the flux residue? Is it the friendly SCAQMD
or OSHA inspector? Youll laugh; youll cringe! Youll
have fun! Forget the success stories. We all tend to hear glowing reports
of successes. Research has shown that successes are reported; failures
are not. You can learn more from failures than successes. Hear about
real-life cleaning mishaps. Hear about partial successes.
Learn how to interpret success stories and adapt the approach for your
own manufacturing facility. Come away with great ideas to clean electronics
assemblies and to avoid costly investments in process equipment and
chemicals that are not right for you. Understand how to fix small issues
before the line goes down, before you lose business. Unlike reality
T.V, most names will be changed to protect the innocent.
of Shelf Life and Manufacturing Environment on Solder Paste
Dr.Neil Poole is a Senior Applications Chemist
in Henkel Technologies, electronics assembly materials application engineering
group. He is responsible for all of Henkel's assembly products including
soldering products , underfills, PCB protection materials, and thermally
conductive adhesives. He holds a Ph.D. Catalysis and a B.Sc in Chemistry
from the University of Edinburgh in Scotland.
number of studies have shown that up to 60-80% of all electronics assembly
defects are related to the solder paste printing and reflow characteristics.
Since the introduction of lead free solder paste, manufactures have
concentrated on improving the printing performance and widening the
reflow window, but the number one problem in assembly of circuit boards
still point to the solder paste. While some of these defects can be
blamed on environmental elements, temperature, and humidity on the factory
floor or possible temperature variations during the shipping and handling.
The condition of the paste, while fresh is usually good, but many of
the process defects may be attributed to the logistics of getting material
from the vendors to the shop floor. In this presentation Henkel will
explore effects of shelf life and manufacturing environment on solder
Exhibit Floor Raffle
Special Thanks to our Raffle
Members = $350/$450 (early/late)
here for Membership Information
Non-Corporate Member = $425/$525 (early/late)
Exhibit package includes: one
6ft draped table, two chairs, company sign, lunch, directory listing
and attendee list. Electricity is an additional $25 per outlet.
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Must Formally Register & Pay
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