Cleanliness and Surface Qualification

We analyze your process to the µm!

At ZESTRON‘s Analytical Center, you have the opportunity to test your entire cleaning process according to international standards such as IPC, MIL or J-STD using a multitude of analytical test methods.

The available processes can be divided into visual, chemical and physical test methods. Thus, all cleaned substrates, such as power modules, PCBs, stencils and tools, as well as the quality of your cleaning bath itself can be analyzed using various techniques.

We provide

Analytical methods to qualify the surface cleanliness according to J-STD001F
Detailed written technical reports
Analysis of possible failures induced by residues
Recommendations for corrective action or optimization

Your benefits

Standardized analytical methods to verify the process security for internal and external audits
Transparent implementation of a new process
Control parameters to independently monitor the wash bath quality and the early detection of cleaning problems
A continuously secure and stable cleaning process achieved through the excellent quality of the wash bath

Ionic Contamination Test

Quantitative measurement of ionic contamination on electronic boards according to IPC-TM 650

Ion Chromatography

Detailed determination of the ionic contamination (anions, cations and weak organic acids) on your assemblies according to IPC-TM-650

Technical cleanliness

Measurement of particles according to type and size distribution (based on standard VDA19 / ISO 16232). Evaluation of particles influencing failures.

Visual Inspection

High resolution surface analysis of electronic boards by using optical (80x) and digital (up to 1000x) microscopes

The following analytical methods are available:

Ionic Contamination testing for monitoring of cleanliness level
FTIR Spectroscopy - Spatially resolved characterisation of organic residues on surfaces and identification of materials and substances
Ion Chromatography for process validation and risk assessment
Technical Cleanliness: Extraction of particles and analysis based on standard VDA19 / ISO 16232
High resolution surface analysis with digital and optical microscopes up to 1000x magnification
Qualitative thermal analysis by determination (qualitative and quantitative) of anions, cations and weak organic acids

Surface energy via contact angle measurement or ink test for bond and mold ability
Surface resistance measurement for signal integrity
ZESTRON^® Flux Test to indicate local distribution of flux activators for corrosion and leakage risk assessment
ZESTRON^® Resin Test to visually identify local distribution of resin-based residues for coatability and bondability
ZESTRON^® Coating Layer Test for localized detection of protective coating layer defects on electronic assemblies