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Adhesives, Coating, Dispensing
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Conformal Coating Prevention and Analysis of Resistor Silver Sulfide Corrosion
Conformal Coating Prevention and Analysis of Resistor Silver Sulfide Corrosion
This paper covers all the long-term test results as a follow-up to an earlier publication reporting interim results and preliminary conclusions. Physical analyses were completed to investigate possible differences in the failure mode at the various FoS test temperatures.
Analysis Lab

Dispensing EMI Shielding Materials: An Alternative to Sputtering
Dispensing EMI Shielding Materials: An Alternative to Sputtering
The development of a spray coating process to apply EMI shielding materials to the exterior surfaces of components on strips and larger SiP packages.
Production Floor

Conformal Coatings - New Solutions to Existing Problems
Conformal Coatings - New Solutions to Existing Problems
This paper describes work carried out by Humiseal to investigate root causes of these problems, and to introduce materials with improved performance.
Analysis Lab

When To Use Adhesive To Bond SMT Components
When To Use Adhesive To Bond SMT Components
When should we use adhesive to bond SMT components to the bottom-side of a double-sided PWA before going through reflow soldering?
Board Talk

The Impact of the Gold Layer Thickness on Layer Properties
The Impact of the Gold Layer Thickness on Layer Properties
The purpose of this study was to evaluate the impact of the gold layer thickness on the ENIG layer performance in different perspectives.
Materials Tech

Improved Process Yield with Dynamic
Improved Process Yield with Dynamic "real-time" Dual Head Dispensing
This paper examines proven methods to determine the dot/line positional accuracy along with mass flow rate for both heads during synchronous dispensing.
Production Floor

Performance Comparison: Liquid and Pad Thermal Interface Material
Performance Comparison: Liquid and Pad Thermal Interface Material
This study tested the hypothesis that a liquid TIM with the same effective thermal conductivity as a gap pad will have lower thermal resistance in application due to its ability to wet out the interface better than a solid pad. Also hypothesize here, bondline thickness has a significant effect over total thermal resistance.
Analysis Lab

Selective Removal of Conformal Coatings by Pulsed Ultraviolet Lasers
Selective Removal of Conformal Coatings by Pulsed Ultraviolet Lasers
To miniaturize electronics conformal coating removal solution needs to provide fine cut resolutions, without compromising quality, cost, and throughput.
Production Floor

Managing blooming in an adhesives process
Managing blooming in an adhesives process
If you have ever used a cyanoacrylate adhesive, you may have seen blooming — a chalky, white residue on the surface of your part.
Materials Tech

Reliable Nickel-Free Surface Finish for High-Frequency-HDI PCB
Reliable Nickel-Free Surface Finish for High-Frequency-HDI PCB
In this paper, assemblies involving this nickel-less novel surface finish have been subjected to extended thermal exposure, then intermetallics analyses.
Materials Tech

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