Work

Corrosion failure analysis of printed circuit boards exposed to H2S resulting from the decomposition of sargassum algae

Year: 2025

Type: article

Abstract: This work analyzed the corrosion failure of a printed circuit board (PCB) exposed to atmosphere of the island of Martinique (located in the Caribbean Sea). This island suffered from the stranding of sargassum algae, which decompose and release toxic gases such as hydrogen sulfide (H 2 S). The morphology and properties of the corrosion products were determined using visual inspection, Scanning Electron Microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Sulfur species were observed in corrosion products, demonstrating the impact of sargassum stranding on air corrosivity. RFID silver corrosion sensors were installed to study the corrosion rate in Martinique. X-ray diffraction (XRD) analysis of the sensors confirmed the impact of hydrogen sulfide on corrosion.

Source: Microelectronics Reliability

DOI: 10.1016/j.microrel.2025.115784

Authors: Benoit Lescop, Olivia Amintas, Carole Boullanger, Stéphane Rioual

Institutions: Centre National de la Recherche Scientifique, Université de Bretagne Occidentale, Laboratoire des Sciences et Techniques de l’Information de la Communication et de la Connaissance

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,280

Funders: Collectivité Territoriale de Martinique, Agence Nationale de la Recherche