TITLE:
Environmental Effects on Electronic Devices in Mexico
AUTHORS:
Francisco Sánchez Pérez, Armando Ortiz Prado
KEYWORDS:
Atmospheric Corrosion, Damage, Electronic Devices, Degree of Atmospheric Corrosion, Corrosivity Map
JOURNAL NAME:
Materials Sciences and Applications,
Vol.10 No.3,
March
27,
2019
ABSTRACT: This
paper shows the results of the assessment of impairment suffered by elements of
electronic equipment by environmental effects in different climatic zones of
Mexico. For this study, evaluated
devices were evaluated that
are mostly exposed under different climatic conditions of operation, to
determine the degree of damage suffered which leads to malfunction, reduced
service life and loss of information in some cases. The main contribution is to identify the causes of
the deterioration to delay the effect of atmospheric corrosion deterioration in
electronic components. The Mexican Republic has a wide range of climates and
subclimates over its territory, sampling was performed for each one of the most
representative regions, by their nature tend to be more conducive to the
release of corrosive effect on the computer and electronic devices. For the
determination of existing impairment in electronic equipment, a methodology is
proposed for the evaluation of samples taken from each
region, determining the degree of corrosion that exists in these devices. It
should be noted that according to the literature, the main pollutants that lead
to the deterioration caused by corrosive environmental phenomena are SO2,
NOx, CO, CO2, coupled with the presence of ozone and
chloride, characteristic of the coastal region, combined with the percent
relative humidity (% HR), and temperature cycles as reported by environmental
monitoring systems in Mexico. With the study of atmospheric corrosivity in
electronic devices has been determined: 1) Design and operation of chamber to
accelerated atmospheric corrosion testing. 2) Identification of electronic
components with increased susceptibility to corrosive phenomena under typical
environmental different regions of Mexico. 3) Correlation of damage suffered in
electronic equipment under typical operating conditions and accelerated tests.
4) Determining the degree of atmospheric corrosion on electronic equipment. 5) Construction
of atmospheric corrosivity map for Mexico in electronic devices.