An inventive semiconductor device includes a semiconductor chip having a passivation film, and a sealing resin layer provided over the passivation film for sealing a front side of the semiconductor chip. A base coat is applied to at least a portion of a surface of the device. When the valve is in the fully open position at the opposite extreme of pintle travel, the shield cooperates with an armature shield in the actuator to prevent entrance of gases into the solenoid. When the cam rotates, the cam engages the cam pawls with one of the engagement elements unlocking the external gear segments from the internal gear segments. Another of the fluidic microstructures 20, 30, 40 may comprise an extruded reactor body. The present invention provides a Ras function inhibitor comprising a compound represented by the formula :wherein each symbol is as defined in the present specification, or a salt thereof.