A device for guiding an airflow in a region of a roof opening in a motor vehicle roof comprises a wind deflector and at least one additional deflector. A flexible blade dissector has a curved, diamond-shaped flexible dissecting blade mounted on a catheter shaft. The sensor devices are configured to monitor the targets and obtain information relating to deflections normal to the plane of the surface. The SPI includes an IO registers block, including an SPI label register and a data register for driving separately data, commands and addresses directed to the memory from the corresponding SPI label registers. A method for washing a device substrate, which comprises a washing step of removing a resist attached to a device substrate by means of a solvent, wherein the solvent is a composition comprising at least one fluorinated compound selected from the group consisting of a hydrofluoroether, a hydrofluorocarbon and a perfluorocarbon, and a fluorinated alcohol.