Abstract: Disclosed is a semiconductor device 10 comprising a first semiconductor element 11 with an arrangement of first element electrodes 12, a second semiconductor element 13 with an arrangement of second element electrodes 14, a connection member 15 electrically connecting together a portion 12b of the first element electrodes 12 and the second element electrodes 14, an insulation layer 17 covering a major surface 11a of the first semiconductor element 11 and a backside surface 13b of the second semiconductor element 13, a wiring layer 22 formed on the insulation layer 17 and electrically connected to the first element electrode portion 12b exposed in an opening portion 21, and an external electrode 23 formed, as a portion of the wiring layer 22, on the insulation layer 17.

Abstract: An improved fuel injection control for direct injected, multiple cylinder, internal combustion engines. The injection control is done by a feed back control device based upon an air fuel ratio sensor. The primary feature of this invention is that the respective injection timing for cylinders are shifted relative to each other so that at least one of the state of emissions contained in the burnt charge and the state of fuel efficiency is almost the optimal every cylinder. In one embodiment, the respective injection timings are controlled to be at the timing where emissions are almost the minimum at each cylinder. In another embodiment, one of the injection timings associated with the cylinder that has the air fuel ratio sensor is advanced than the timing where emissions are almost the minimum.

Abstract: An improved fuel supply system for a direct injected engine accommodated in outboard motors includes a pump drive mechanism, instead of a camshaft, for driving a high pressure fuel pump. A pair of the high pressure fuel pumps is applied in one embodiment and a single one is applied in another embodiment. A pulsation damper is further provided for smoothing output of the fuel pump. The pump drive mechanism is unified with a fuel supply conduit, which has a plurality of fuel injectors, for increasing rigidity of components and affixed to the cylinder body of the engine. Openings on the cylinder head of the engine for accommodating the fuel injectors are larger than the injectors so that accumulated tolerances are absorbed by the gap made between the opening and the injector.

Abstract: A floor mat having an upper face layer and a base layer, which comprises a plane section and a marginal peripheral section surrounding the plane section, wherein at least a part of the marginal peripheral section contains a belt-like portion which is raised at the side of the upper face layer and extends continuously and substantially in parallel to a marginal peripheral edge thereof; the belt-like portion contains a channel extending longitudinally thereof at the side of the base layer; and the belt-like portion carries at least one convex-concave structure on a wall surface of the channel, with the proviso that, when the convex-concave structure extends transversely of the channel, the convex-concave structure is discontinued on at least a bottom surface of the channel, is disclosed. The floor mat according to the present invention has a sufficient peeling strength obtained by a compression process used for only a short period of time.

Abstract: A method of making semiconductor devices with contacts protruding from openings in a passivation layer over an active chip area. Inside each opening, a relatively hard barrier layer is provided and a flash-plated film is applied to subsequently form a relatively soft diffusion barrier layer when a protruding contact is formed. Two semiconductor devices with electrodes are joined by embedding relatively hard electrodes of a first device into relatively soft electrodes of a second device. A reducing agent can be incorporated into an insulating resin applied between semiconductor chips at areas other than the bonded electrodes.

Abstract: A method and device for increasing the amount of fuel to an engine during acceleration is provided. A secondary source of fuel in addition to a first source of fuel is introduced into the engine during acceleration. The secondary source of fuel is introduced through a secondary fuel delivery line which is opened by a valve actuated in response to throttle control movement. In a first embodiment, the secondary fuel delivery line communicates with a fuel delivery area from which fuel is supplied to the first fuel source. The valve is pressed open by the throttle control along with a primary fuel source needle valve control, allowing fuel from the fuel delivery area to flow through the second fuel line in addition to the first fuel source. In second and third embodiments, the secondary fuel line communicates with an excess fuel return line. A valve extends across the fuel return line and secondary fuel line.

Abstract: A number of embodiments of personal watercraft having catalytic exhaust systems for treating and purifying the exhaust gases. In all of the embodiments, the catalyst is positioned and disposed so as to be protected from water. In addition, arrangements are provided for cooling the catalyst, for circulating ventilating air across it, for isolating it from other components such as the fuel tank, and for permitting its flushing with fresh water after operating in a salt water environment.

Abstract: There are disclosed novel ether compounds of the general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen or the like; A is a group of the general formula: ##STR2## B is a group of the general formula: ##STR3## and X is oxygen or sulfur; and harmful-organism controlling agents containing them as active ingredients.

Abstract: A personal watercraft includes a catalytic exhaust system in order to reduce discharge of pollutants. A catalyzer of the exhaust system is located within an expansion chamber. The expansion chamber, as well as the internal combustion engine of the personal watercraft, are enclosed within a hull. The watercraft hull desirably includes an access opening located near the catalyzer. The access opening is of a size sufficient to allow at least the catalyzer to be removed from the hull of the personal watercraft for servicing or cleaning.

Abstract: A semiconductor device having a protection layer covering the active layer of a semiconductor chip with an opening therein corresponding in location to a chip electrode located on the active surface of the semiconductor chip. Inside the opening a barrier layer covers the chip electrode, a diffusion barrier layer covers the barrier layer and a protruding contact protruding from the diffusion barrier layer. The protruding contact preferably comprises material whose hardness is lower than that of each of the barrier layer and chip electrode.

Abstract: A semiconductor device comprises a square-shaped first semiconductor chip having a first LSI, a square-shaped second semiconductor chip having a second LSI, which is smaller in size than the first semiconductor chip and connected to the first semiconductor chip by face down bonding, and a square-shaped package made of a molding resin for packaging the first and second semiconductor chips. The respective centers of the first and second semiconductor chips are offset from each other, while the center of the second semiconductor chip is substantially coincident with the center of the molding resin.

Abstract: An internal combustion engine having at least one variable volume combustion chamber with an intake passage leading thereto, an ignition element for igniting an air/fuel mixture in the chamber, an exhaust passage leading therefrom and including a catalyst in communication therewith, and an emission control for controlling the emission content is disclosed. Preferably, the emission control comprises a mechanism for closing the intake passage leading to the chamber in the event an engine abnormality is detected and an engine ignition misfire mode is employed, thereby preventing the emission of unburned air and fuel into the exhaust passage leading to the catalyst.

Abstract: A catalytic exhaust system for an outboard motor having an engine positioned in a cowling thereof is disclosed. The exhaust system leads from an exhaust port of the engine to a discharge from the motor. A catalyst is positioned in the exhaust system for catalyzing exhaust gases. A first port is positioned in the exhaust system downstream of the catalyst through which an exhaust gas probe may be selectively extended for obtaining an exhaust gas sample. Additionally, a second port is preferably provided between the catalyst and the first port and through which an exhaust gas temperature sensor extends.

Abstract: An arrangement of an exhaust gas collection port within an exhaust system of a small watercraft increases the accuracy of an associated probe's readings. The port is located upstream of a point where cooling water is introduced into the exhaust system for silencing purposes. As a result, the ingress and egress of exhaust gases flow into and out of the port is generally unimpeded by the cooling water. The tendency of water to enter and clog the port is also reduced. The precision of the associated exhaust probe measurements consequently is greatly increased.

Abstract: An engine having an engine control for reducing the passage of unburned fuel and other components into the exhaust system for preventing the fouling of an exhaust catalyst, is provided. As the speed of the engine increases, the engine control causes a valve corresponding to each exhaust passage to move to a position whereby time during which exhaust is allowed to flow from each combustion chamber is extended. Preferably the valve is of the rotating type, movable from one position in which it does not obscure the exhaust passage and the exhaust duration is long, and a second position in which it does obscure a portion of the exhaust passage, causing the exhaust start time to be delayed and the exhaust stop time to be accelerated. The engine control prevents fouling of the catalyst by reducing the flow of unburned fuel products through the exhaust thereto.

Abstract: There are disclosed novel ether compounds of the general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen or the like; A is a group of the general formula: ##STR2## B is a group of the general formula: ##STR3## and X is oxygen or sulfur; and harmful-organism controlling agents containing them as active ingredients.

Abstract: The present invention reduces crosstalk, which occurs as a result of interference between signals running in each of respective wiring layers of a first semiconductor chip and a second semiconductor chip stacked surface to surface with a small gap. The semiconductor device includes a first semiconductor chip 1 having a first electrode pad 2 and a first wiring layer 9 in the main surface, and a second semiconductor chip 5 having a second electrode pad 6 and a second wiring layer 10 in the main surface confronting the first semiconductor chip. A bump 4 is provided for electrically coupling the first electrode pad 2 and the second electrode pad 6 together. An insulation layer 8 is disposed between the main surfaces of first semiconductor chip 1 and second semiconductor chip 5. An electro-conductive layer 7 is disposed between the main confronting surfaces of the first semiconductor chip and the second semiconductor chip.

Abstract: A microcomputer chip is formed with a CPU core, a peripheral circuit, a built-in ROM, and a built-in RAM. An emulation functional chip is formed with an emulation control circuit for controlling the whole process of emulation. First electrode pads formed on the functional surface of the microcomputer chip are electrically interconnected to second electrode pads formed on the functional surface of the emulation functional chip with connecting bumps interposed therebetween. The microcomputer chip and the emulation functional chip are modularized using an insulating resin with the first electrode pads being connected to the second electrode pads.

Abstract: A watercraft engine control system for controlling the temperature in the exhaust system to protect against potentially dangerous situations. If the exhaust temperature is sensed to be unduly high, a protective action is initiated. This protective action reduced in the flow of unburned fuel to the exhaust system either stopping of the engine or reducing its speed below idle. The protection action may be initiated either immediately or if the situation occurs for more than a predetermined time period.

Abstract: An exhaust pipe cooling system is provided for a small watercraft, such as a personal watercraft, to regulate the temperature of a catalyzer of an associated exhaust system. The cooling system supplies fresh water to a water jacket which surrounds the catalyzer in a manner independent of an engine cooling system. A control valve also can regulate the flow rate of water through the cooling system to adjust the temperature of the catalyzer to fall within a desired range of operating temperatures.