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A simple method for fabrication of antifuse WORM memories

dc.contributor.authorÁvila Niño, José Antonio
dc.contributor.authorReyes Reyes, Marisol
dc.contributor.authorNúñez Olvera, Oscar Fernando
dc.contributor.authorLópez Sandoval, Román
dc.identifier.citationJ.A. Ávila-Niño, M. Reyes-Reyes, O. Núñez-Olvera, R. López-Sandoval, A simple method for fabrication of antifuse WORM memories, Applied Surface Science, Volume 454, 2018, Pages 256-261.
dc.description.abstract"A write-only-read-many (WORM) memory device was obtained by irradiating, with a commercial ultraviolet-ozone (UVO) lamp, the aluminium bottom electrode in an Al/AlOx-UVO/Al configuration. The formation of conductive paths due Joule heating is observed when a positive or negative bias voltage is applied to the device, occurring a permanent transition from high (OFF) to low (ON) resistance state. After OFF to ON transitions, physical deformations were observed on the top of the devices, which were analyzed using morphological studies of the top electrode. To eliminate these physical deformations, the UVO treatment on the aluminium bottom electrode was replaced by the deposition of a thin polyvinyl alcohol (PVA) film (10?nm). These Al/AlOx-native/PVA/Al WORM memories presented similar I-V behaviours and the same threshold voltages to those Al/AlOx-UVO/Al devices, but with higher ON/OFF ratios. Analysis of the I-V curves confirms that the same physical phenomena, such as the formation of filamentary paths, are occurring for both types of devices."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.subjectAluminium oxide
dc.subjectUV-ozone treatment
dc.subjectWORM memories
dc.subjectPolyvinyl alcohol layer
dc.titleA simple method for fabrication of antifuse WORM memories
dc.rights.accessAcceso Abierto

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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