I would like to submit the following question to mems-talk partners: Does anyone knows diffusion coefficients of Ar in Si and SiO2 ? Many thanks for your help Best regards Frank TORREGROSA R&D Manager ION BEAM SERVICES ZI Peynier Rousset, Rue G. Imbert Prolongée F-13790 Peynier, FRANCE Tel : +33 (0)4 42 53 89 64 Mob. : +33 (0)6 72 21 37 59 Fax : +33 (0)4 42 53 89 64 Mail : frank.torregrosa@ion-beam-services.fr