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Knowledge, Vision & Wisdom Jan 29, 2015
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? What impact will they have on productivity, employment and personal satisfaction? What are the opportunities and threats? We'll show you.
Technology Briefing
Consensus for Baking Prior to Rework?
What is the industry consensus for baking out moisture in circuit board assemblies prior to convection rework, localized mini-wave rework, or hand soldering rework?
Board Talk
Problems with Insufficient Barrel Fill
Problems with Insufficient Barrel Fill
We are seeing insufficient barrel fill (60-75%) during lead free wave soldering. Can you point to some reasons why we may be seeing this?
Ask the Experts
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Reliability of No-clean and Water-soluble Solder Pastes
Reliability of No-clean and Water-soluble Solder Pastes
The purpose of this paper is to highlight the differences between two families of solder pastes to guide users in their choice.
Analysis Lab
Design and Construction Affects on PWB Reliability
In this paper the author reviews the general trends in design like the use of non-functional pads, or nickel as part of the surface finish and rank the overall robustness of each.
Production Floor
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Enhancing Reliability of PB-Free Solder Joints
This paper reviews the physical properties of different underfills and how they affect performance through reliability testing.
Materials Tech
Investigation into Printing Miniaturized Devices
Investigation into Printing Miniaturized Devices
Paper investigates a solution to ensure a high yield process where fine pitch devices can be printed alongside traditional larger footprint devices.
Production Floor
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Use of Nitrogen for Hand Soldering
Is there any reasonable way to hand solder without flux to totally eliminate cleaning? Is there such a thing as using nitrogen in a local area while hand soldering?
Ask the Experts
TOF SIMS Analysis for SnO Determination
TOF SIMS Analysis for SnO Determination
During the production of Lead-Free Hot Air Solder Leveling (LF HASL), non-wetting issues in several components were found including BGA pad.
Analysis Lab
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PCBA Cleaning with Sodium Bicarbonate
Is there an effect on PCBA long-term reliability when cleaned with a sodium bicarbonate scrub followed by DI water rinse to remove tarnishing of silver immersion plating?
Board Talk
A Nanotech Solution for Bed Bugs
A Nanotech Solution for Bed Bugs
Research in nanotechnology has led to a promising solution to an ancient problem: bed bugs.
Technology Briefing
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Solder Paste Ingredients vs. Performance
Solder Paste Ingredients vs. Performance
Paper provides an overview of the solder paste development and benchmarking processes, and introduces a method for assessing a solder paste's robustness.
Materials Tech
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Control for Cost-Effective Selective Soldering
Control for Cost-Effective Selective Soldering
Paper gives a comprehensive survey about the process steps to monitor and control a cost-effective selective soldering process.
Production Floor
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Flux Residue Visible After 3 Months
After 3 months at the customer site, we see white marks on the PCBA bottom side. The customer claims the white marks are flux residue.
Ask the Experts
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The Phantom Switch
The Phantom Switch
A flat panel switch turned on but only when a nearby door was slammed shut. What was causing the switch to activate?
Mysteries of Science
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"It's your attitude, not you aptitude that determines your altitude. That's the philosophy that got me kicked out of pilot school."
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