A thin film etching method includes forming a layer on a substrate, aligning a mask having a pattern defined thereon above the layer, and removing a portion of the layer by irradiating the substrate with a femtosecond laser through the mask. Programming of the drug delivery device can be achieved by use of the remote unit, but requires tactile intervention by the user with the drug delivery device, thereby avoiding inadvertent or unauthorized changes to the drug delivery settings via the wireless unit. The zeolite is a MFI-structured zeolite-containing phosphor and transition metal or a mixture of the zeolite and a macroporous zeolite, which comprises, based on the weight of the mixture, 75-100% by weight of said MFI-structured zeolite containing phosphor and transition metal and 0-25% by weight of the macroporous zeolite. The fastening device comprises a reinforcement insert integrated into the module covering and fastened to the gas bag module.