Analytical Services for Electronics Manufacturing

From quality assurance to failure analysis: Precise surface analysis of assembled PCBs and power modules to assess residues, cleanliness, surface structure and wettability.

Overview of Analytical Methods

analytical services Reliable Assessment of Surfaces and Cleaning and Rinsing Baths

Contamination, residues or surface changes on PCBs, electronic assemblies and power modules can affect subsequent processes and long-term reliability. The condition of cleaning and rinsing baths also determines whether cleaning results remain stable and reproducible.

Using analytical methods tailored to the specific requirements, ZESTRON examines surfaces as well as cleaning and rinsing baths. Our experts identify and assess relevant residues, surface properties and process parameters, interpret the results in their technical context and provide a reliable basis for quality assurance and process optimization.

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01
Residue Identification

Identify unknown organic, ionic or particulate contamination on PCBs and power modules.

02
Cleanliness Verification

Quantitatively assess and clearly document the surface cleanliness of electronic assemblies.

03
Root Cause Analysis

Analyze surface anomalies and assess potential links to materials, processes or residues.

Identify Root Causes. Ensure Quality.Overview of Analytical Methods

Get a quick overview of our analytical methods. Select the appropriate method below to help ensure the reliability of your products and processes.

Bath samples are analysed in the laboratory in test tubes using the Zestron Bath Analyzer. | © @The Sour Cherry Fotografie - Michaela Curtis

Bath Analysis

Analysing your cleaning and rinsing baths.


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A green circuit board is used to carry out the ionic contamination (IC) using the ROSE test. | © @The Sour Cherry Fotografie - Michaela Curtis

Ionic Contamination Measurement  -
ROSE Test

Quantitative detection of ionic contamination on your PCB assembly.


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Two engineers stand in front of the ion chromatography analyser to check the ionic contamination on a circuit board. | © @The Sour Cherry Fotografie - Michaela Curtis

Ion Chromatography

High-resolution analysis method for detailed detection of ionic contamination on your assembly by type and quantity.


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A laboratory employee sits at a desk in front of a microscope and carries out a visual damage analysis to determine the contamination of the electronic assembly. | © @The Sour Cherry Fotografie - Michaela Curtis

Basic Analysis Surface Cleanliness

Basic analysis to check the surface cleanliness of your PCBA.


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FTIR analysis at ZESTRON for identifying organic residues on electronic assemblies. | © @The Sour Cherry Fotografie - Michaela Curtis

FTIR Microscopy and Spectroscopy

Analysis of chemical composition of substances and determination of impurities on electronic assemblies.


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Investigation of chemical composition of surfaces of electronic assemblies.

SEM/EDX Analysis

Investigation of the properties and chemical composition of surfaces of electronic assemblies.


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Determination of the wettability of surfaces of electronic assemblies and power modules

Contact Angle Measurement

Determination of the wettability of surfaces of electronic assemblies and power modules.


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Process optimisation in electronics manufacturing

Analytical ServicesMore Than Measurement Data

The selection of the appropriate analytical method depends on the sample, the type of anomaly and the objective of the investigation. Depending on the analytical service, you will receive a documented evaluation or a technical report. Our experts interpret the results in the context of your electronic assembly, the materials used and the respective manufacturing process.

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