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Knowledge, Vision & Wisdom Jul 2, 2015
01005 Component Challenges and Bugs
We are going forward with assemblies that use 01005 components. We're wondering if you have some input as to the most important challenges we are going to face.
Board Talk
Fastening SMT Connectors - Before or After Refow?
Is there an IPC guideline for attachment of SMT or PTH connectors that are hardware mounted? Do you tighten / torque hardware before soldering, or solder then tighten hardware?
Ask the Experts
Taking the LED Pick and Place Challenge
There has been a shift in the lighting industry that has carried over to the surface mount technology assembly line. What is this shift? Is it the LED revolution?
Production Floor
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What Drives Consumer Loyalty and Passion?
What Drives Consumer Loyalty and Passion?
When designing a new car, manufacturers might try to attract consumers with more horsepower, increased fuel efficiency, or a lower price point.
Technology Briefing
Printing and Assembly Challenges for QFN Devices
QFN (quad flatpack, no leads) and DFN (dual flatpack, no lead) are becoming more popular in new component releases.
Production Floor
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Ultrasonic Cleaning Considerations
I need to clean using an ultrasonic cleaner. What considerations do we need to know about?
Ask the Experts
Long Term Component Storage
We need to store SMD components for at least 10 years. What do you recommend for a humidity and temperature settings? Would these be different from typical short-term storage?
Board Talk
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Double Print Stencils Systems
It is useful in Assemblies that require mixed technologies; including SMT / Through Hole, SMT / Glue attach components, Packages requiring die attach / SMT assembly.
Production Floor
Package-on-Package Rework
We need to perform some Package-on-Package rework. The only package we need to rework is the top package. Can we rework the top package only, or should we remove both packages and then replace them both?
Ask the Experts
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Is There a Spacing Spec for SMD Components?
Is There a Spacing Spec for SMD Components?
Is there a general minimum spacing requirement or should we apply SMT components to comply with the majority of the SMT pick and place systems on the market?
Board Talk
Bromine Free PWBs
What are the pros and cons of bromine in PWBs? Are bromine and lead free connected?
Ask the Experts
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Ten Rules for Jumper Wires
Ten Rules for Jumper Wires
The need to attach jumper wires to circuit board assemblies is inevitable. This program covers 10 key rules for attaching jumper wires to assembled boards.
Production Floor
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The Robotic Explosion
The Robotic Explosion
Today for better or worse we're witnessing an explosion in robots. What will these robots look like and what will they do?
Technology Briefing
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Analysis of Voiding Under QFN Packages
Paper covers results of experiments on QFN devices when the ensuing voiding level was calculated by x-ray inspection.
Analysis Lab
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When Precision is Not Good Enough
Papers shows that variations in pcb design cannot be accounted for by look up tables and a more complex model is required.
Materials Tech
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Cartoon
"Your smartphone is overqualified."
Copyright © Randy Glasbergen