摘要:
The invention is directed to reduction of a manufacturing cost and enhancement of a breakdown voltage of a PN junction portion abutting on a guard ring. An N− type semiconductor layer is formed on a front surface of a semiconductor substrate, and a P type semiconductor layer is formed thereon. An insulation film is formed on the P type semiconductor layer. Then, a plurality of grooves, i.e., a first groove, a second groove and a third groove are formed from the insulation film to the middle of the N− type semiconductor layer in the thickness direction thereof. The plurality of grooves is formed so that one of the two grooves next to each other among these, that is closer to an electronic device, i.e., to an anode electrode, is formed shallower than the other located on the outside of the one. Then, an insulating material is deposited in the first groove, the second groove and the third groove. The lamination body of the semiconductor substrate and the layers laminated thereon is then diced along dicing lines.
摘要:
The first pad electrode layer is disposed on the surface of the semiconductor substrate with the first insulating film between them. Then, the second insulating film with the first via hole partially exposing the first pad electrode layer is formed over the first pad electrode layer. The plug is formed in the first via hole in the next process. The second pad electrode layer connected to the plug is disposed on the second insulating film. Next, the second via hole reaching to the first pad electrode layer from the backside of the semiconductor substrate is formed. The penetrating electrode and the second wiring layer connected to the first pad electrode layer at the bottom part of the second via hole are disposed. Furthermore, the protecting layer and the conductive terminal are formed. Finally, the semiconductor substrate is diced into the semiconductor chips.
摘要:
To select an element block from an element tree obtained by analyzing a structured document and arrange the element block into a page in a simple and appropriate manner. First, a pointer for referring to a next previous element block is provided. Secondly, page-break processing corresponding to the type of contents of the element block is performed.
摘要:
There is provided a spark plug wherein an insulator and a metallic shell, when observed in a section made by a plane including an axis of a spark plug, have therebetween a gap of less than 0.45 mm at a more front end side than an engagement position of a packing and a first insulator stepped portion, and the gap is provided axially from a most front end side engagement position of the packing and a first insulator stepped portion as a starting point to a finishing point that is apart from the starting point by 1.2 mm or more toward the front end side while being apart from a front end surface of the metallic shell by 7.9 mm or more toward a rear end side.
摘要:
A method of starting a fuel cell system and a fuel cell system including: a fuel cell stack having a phosphoric acid polymer electrolyte membrane, in which an electrochemical reaction occurs using hydrogen and oxygen; a cooling water circulating unit that supplies heated cooling water to the stack to increase the temperature of the stack; and an air circulating unit that provides heated air, as a source of the oxygen, to the stack. The circulating unit can include a heating unit to directly heat the air and/or a heat exchanger to heat the air using air exhausted from the stack. The temperature of the stack can be rapidly increased by supplying the heated air and by generating an endothermic reaction in the stack. The condensation of water vapor in the stack is repressed while the stack is heated, by the heating of the air and/or by increasing the pressure of the air.
摘要:
A balloon pumping method of inflating and deflating a balloon includes the steps of setting a pressure in the balloon at a first pressure value, which is higher than a minimum pressure value and is substantially equal to or lower than a maximum pressure value, when the balloon is shifted from a deflated condition to an inflated condition, and setting the pressure in the balloon at a second pressure value, which is substantially equal to or higher than the minimum pressure value and lower than the first pressure value, when the balloon is estimated to have completely inflated at the first pressure value.
摘要:
A resin injecting apparatus includes a resin injecting nozzle for injecting a molten resin into a cavity configured between a first resin molded part and a second resin molded part connected to the first molded part, from a through-hole configured in the second molded part, and an ejection plunger for ejecting a predetermined amount of molten resin from the resin injecting nozzle. In addition, a thermal insulating bush is attached to the resin injecting nozzle, a coolant passage is formed in the thermal insulating bush and through which a coolant is passed, and a coolant supplying unit supplies the coolant to the coolant passage.
摘要:
A spark plug is provided with a metal shell and a ceramic insulator to support therein a center electrode. The ceramic insulator includes a front portion with a stepped outer surface, a middle portion, a rear portion and a shoulder portion defined between the middle and rear portions. A difference between the outer diameters of the middle and rear portions of the ceramic insulator is 1.8 mm or smaller. The metal shell includes a radially inward protrusion to retain thereon the stepped outer surface of the ceramic insulator and a rear end portion crimped onto the shoulder portion of the ceramic insulator. An inner circumferential surface of the crimped shell portion has a region held in contact with the insulator shoulder portion with a radially innermost point of the crimped shell portion being spaced radially apart from the ceramic insulator and axially apart from the insulator shoulder portion.
摘要:
A digital camera includes an imaging unit provided in a camera body to take an image electrically, an optical finder provided at an edge portion of the body, and a display apparatus provided in the body to display the taken image. The display apparatus includes a panel including a display area arranged nearer to a rear surface of the body than the imaging unit in the body, a projection projecting outwardly from a part of a periphery of the display area, a looking-out portion at a predetermined part of the projection, and a pixel drive unit for driving matrix pixels of the display area at the remaining part of the projection. In the body, the area of the panel corresponds to a window formed in the rear surface, the looking-out portion of the projection overlaps with the finder, and the drive unit is arranged in a side of the finder.