A fiber optic connector assembly includes a connector and a carrier. At least a portion of a secondary air introduction unit that introduces secondary air into an exhaust passage of the engine is positioned directly behind the front wheel supporting portion. The configuration and control bus is coupled to the plurality of configurable composite circuit elements, and comprises a plurality of address and control lines and a plurality of data lines. The method comprises etching of source and drain zones, connected by a narrow zone, in a stack of layers. Additionally, the shape of the parallelogram is more flatten the further the parallelogram pattern is located from the center of the spinneret.