INSPECTION, ELECTRICAL & VERIFICATION, TESTING

XPS, how it works and its applications in EEE parts

Posted by Francisco Javier Aparicio Rebollo
On May 30, 2019
0

X-ray photoemission spectroscopy (XPS) also known as electron spectroscopy for chemical analysis (ESCA) is a surface-sensitive quantitative analysis method to accurately determine the elemental composition of solid materials. The technique is the most extended tool for the chemical characterization of thin films coatings and surfaces either for industrial applications as well as for research

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

XRF tool, how it works and its applications in EEE parts

Posted by Francisco Javier Aparicio Rebollo
On May 16, 2019
0

XRF is a non-destructive and quick analytical tool to determine the chemical elements present in the specimen. In particular, it combines low detection limit (particularly in the case of heavy elements) with quick and easy sample preparation.

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

What is SEM EDS as Internal Material Analysis?

Posted by Francisco Javier Aparicio Rebollo
On May 2, 2019
0

This analytic technique may provide both qualitative and quantitative information of the composition of a surface, i.e. identification of the elements and the element weights, respectively. The technique relies on the detection and spectroscopy of secondary radiation (X-Ray) emitted when a high-intensity incident beam of electrons impinges upon the materials placed in its path. The SEM – EDS Internal Material Analysis (also known as EDX or EDAX) can be performed in accordance with MIL-STD-883, MIL-STD-750, MIL-STD-1580 and ESCC 25500 requirements.

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

Working process of C-SAM in EEE Parts

Posted by Francisco Javier Aparicio Rebollo
On March 28, 2019
0

Scanning Acoustic Microscopy (C-SAM) for the non-destructive internal inspection of Microelectronic Parts: How it Works and Physics Fundamentals.

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

Different types of Corrosion / Contamination in Crimped Connectors

Posted by Francisco Javier Aparicio Rebollo
On March 14, 2019
0

Crimped connectors are gas-tight junctions ideally protected against environmental contaminants and corrosive agents. Nonetheless inappropriate crimping and inherent connector and wire defects reduce this protection. Thus, depending of the storage atmosphere, non-conducting corrosion products can be formed, or stress corrosion cracking can be eventually induced. The former act as insolation layer that reduces the connector conductivity and both corrosion effects are identified as critical factors involved in common fails reported for electrical connectors.

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

Alter Technology SAM Internal procedure

Posted by Francisco Javier Aparicio Rebollo
On January 22, 2019
0

Some specific user requirements cannot be fulfilled by QPL parts (scientific missions). In these situations, plastic encapsulated COTSs are investigated. We comply with the applicable specification so that in this case they comply with the applicable specification. If the plastic encapsulated COTS with the required functionality does not meet the rejection criteria of conventional test methods, Alter Technology, with internal criteria for the assessment of plastic encapsulated COTSs, and the final user agree on a set of new rejection criteria for lot acceptance by considering the actual working conditions plus additional validation test flow based on the expected use.

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