Surface Analysis & Cleaning Bath Monitoring

Learn how to analyse the cleanliness of your electronic assemblies and components and how to monitor the concentration of your cleaning bath.

Flux residues: How to find out the risk for leakage current

Flux residues on the assembly’s surface are a typical source of leakage current. The tutorial explains why flux residues might be critical. It also shows an easy and quick method to detect flux residues and how to simply test if they can lead to leakage current.

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Electrochemical Migration – What ECM is and how it develops

Electrochemical Migration is the most frequently discussed cause for climatic related field failures. But what does ECM mean and how does it work? This tutorial video explains the mechanism of ECM and its trigger and presents options to prevent ECM.

Technical Cleanliness: How to assess the risk of particles

The production process of electronic assemblies is full of particle sources. But particles on an electronic assembly’s surface can impair its functionality and therefore the reliability of the product. The tutorial shows which consequences due to particles can occur and explains how to simply measure and evaluate their risk.

Process monitoring of electronic assemblies: How to use the ROSE-Test

Measuring the ionic equivalent on an assembly’s surface, the ROSE-Test is a suitable monitoring method for the electronics production. But how to set up and use the test correctly? The tutorial explains step-by-step which factors have to be considered regarding the test set up, the equipment and the measuring fluid in order to achieve reproducible results.

Protective Coating: How to get a reliable process

Due to harsh environmental conditions more and more pcb assemblies are coated for protection. But how to ensure the reliability of the coating and its application process? In this tutorial several critical items are explained you should consider when choosing a protective coating and how to ensure its reliability.

Risk assessment: How to analyze electronic assemblies

Which methods for analyzing the susceptibility as well as reliability of an electronic assembly do exist? And what has to be considered using these methods? Explaining ion chromatography and the surface resistance measurement, the tutorials not only shows measurement methods but also how to interpret and use their results for the production.

Detection of protective coating layer defects on electronic assemblies

The ZESTRON® Coating Layer Test utilizes a black color reaction as a visual indicator of the defects in the protective coating, even in the case of μ-coatings. The test thus adds the standardized methods for coating thickness measurement by enabling rapid and non-destructive detection of closed and dense coatings. Therefore, the test can also be used during production for cost-effective sampling.

ZESTRON EYE - automatic online concentration measurement

ZESTRON® EYE is an online concentration monitoring system that enables the precise and real-time measurement and control of cleaning bath concentration for electronics cleaning processes irrespective of flux loading.

ZESTRON Flux Test - Indication of flux activators on PCB assemblies

The ZESTRON® Flux Test indicates carboxylic-based flux activators through a color reaction. The test is an important supplement to the ionic contamination measurement, as non-visible residues can be easily detected.

This video tutorial will show you how fast and easy you can detect carboxylic-based flux activators on your pcb assemblies.

Technical Cleanliness - Extraction of particles and analysis

Even the smallest amount of residue may increase the risk of failure on electronic boards significantly.

Particle contamination of electronic assemblies can be reliably analysed through particle extraction and analysis.

This qualitative and quantitative measurement tool can define the particles by type and size distribution, and be applied to assess the risk of failure on electronic boards. Furthermore, this method can be used to evaluate particulate contamination with regard to its influence on the cause of damage of the assembly.

ZESTRON Bath Analyzer kit - easy and fast concentration measurement

Learn how simple and fast the concentration measurement with the ZESTRON Bath Analyzer is in this step by step tutorial.

Resin Test - identification of resin based residues

With electronic assemblies being more frequently exposed to diverse climatic conditions, the reliability of conformal coatings becomes increasingly important. Remaining flux residues are mainly responsible for adverse effects on the climatic and long-term reliability. Particularly, the resin-based components of such residues promote poor adhesion, which in turn leads to delamination and/or cracks of the conformal coating. As a result, all resin-based residues must be identified during the manufacturing process and completely removed through an integrated cleaning step.

This video tutorial will show you how fast and easy you can detect resin based residues on your pcb assemblies.

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