A hearing aid device and a method of manufacturing the hearing aid device provide a housing and a first conductive layer. Those tool guides which have an integral gauge for measuring the required spacing between the guide and the tool cut in some cases may be readily used only for short cuts on narrow workpieces or must be held on the workpiece by hand. A propulsion unit is operative to move the vessel forward at slow speed for skimming operations, and, with the skimmer unit in its raised position, at a fast speed in which the vessel planes on its trimaran main section. The cladding layers can be electrically insulating in the passive PBG mirror and waveguide regions with a small conducting aperture for efficient channeling of the injection pump current into the active region. Also provided are a method of manufacturing the lithographic printing plate support and a PS plate which has such merits. This is achieved by employing a variable rotational assignment methodology with respect to the interconnect layers or levels during the IC fabrication operation.