High-rate deposition of stoichiometric compounds by reactive magnetron sputtering at oblique angles

Target poisoning in reactive magnetron sputtering deposition of thin films is an undesired phenomenon, well known for causing a drastic fall of the process efficiency. We demonstrate that when this technique is operated at oblique angles, films with composition raging from pure metallic to stoichiom...

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Detalles Bibliográficos
Autores: Álvarez, Rafael, García-Valenzuela, Aurelio, López-Santos, Carmen, Ferrer, F. J., Rico, Víctor J., Escobar Galindo, R., González-Elipe, Agustín R., Palmero, Alberto
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/158491
Acceso en línea:http://hdl.handle.net/10261/158491
Access Level:acceso abierto
Palabra clave:Target poisoning
Thin films
Titanium oxide
Physical vapour deposition (PVD)
Reactive magnetron sputtering
Descripción
Sumario:Target poisoning in reactive magnetron sputtering deposition of thin films is an undesired phenomenon, well known for causing a drastic fall of the process efficiency. We demonstrate that when this technique is operated at oblique angles, films with composition raging from pure metallic to stoichiometric compound can be grown in non-poisoned conditions, thus avoiding most of the associated drawbacks. We have employed amorphous TiOx, although the presented results can be easily extrapolated to other materials and conditions. It is found that the proposed method improves 400% the growth rate of TiO2 thin films.