Abstract: A solid-state imaging device is formed by laminating a photodiode on a surface of a Si semiconductor substrate, a gate electrode layer to read out or transfer electric charge stored on the photodiode, a first inter-layer insulating film made of SiO2, a first metallic wiring layer, a second inter-layer insulating film made of SiO2, a second metallic insulating layer, an undoped silicon glass (USG) film containing hydrogen, and a passivation film containing hydrogen, one by one. Dark currents are reduced by exhausting hydrogen atoms in the USG film and the passivation film for bonding it with dangling bonds on the surface of the Si semiconductor substrate, while applying heat treatments to the imaging device at a temperature of 400° C. or higher.

Abstract: A purge control valve is directly connected to the fourth side surface of the main throttle body. The purge control valve comprises a main valve body, an introducing nozzle, and a discharge nozzle installed to penetrate from a bottom surface of the main valve body to a fourth side surface of a main throttle body. The discharge nozzle communicates with a communicating passage which is formed in an axial direction of an intake passage in the main throttle body. The communication passage communicates with a purge passage which is formed to have a circular arc-shaped cross section having a substantially constant width along an outer circumference of the intake passage so that an outlet surface may be cut out.

Abstract: Evaporating fuel is quickly purged to an intake passage in response to operation of a throttle valve, and the evaporating fuel is reliably purged at a desired flow rate without being affected by an opening/closing operation of the throttle valve. A purge control valve is directly connected to the fourth side surface of the main throttle body. The purge control valve comprises a main valve body, an introducing nozzle, and a discharge nozzle installed to penetrate from a bottom surface of the main valve body to a fourth side surface of a main throttle body. The discharge nozzle communicates with a communicating passage which is formed in an axial direction of an intake passage in the main throttle body. The communicating passage communicates with a purge passage which is formed to have a circular arc-shaped cross section having a substantially constant width along an outer circumference of the intake passage so that an outlet surface may be cut out.