摘要:
A resin-encapsulated semiconductor device includes: a semiconductor chip on a surface of which a group of electrodes is disposed; a plurality of inner leads arranged along a periphery of the semiconductor chip; connecting members for connecting the electrodes of the semiconductor chip with the respective inner leads, an encapsulating resin for encapsulating surfaces of the semiconductor chip and the connecting members; and external electrodes exposed from the encapsulating resin. Each of the inner leads extends across the periphery of the semiconductor chip from an internal side to an external side of the periphery, and includes a protruded portion provided on a surface of the inner lead on an external side relative to the periphery of the semiconductor chip, the protruded portion being protruded in a thickness direction. Conductive bumps as the connecting members on the electrodes of the semiconductor chip are connected with internal portions of the respective inner leads, the internal portions being positioned inward relative to the protruded portions. The external electrodes are formed on surfaces of the protruded portions, and tip ends of the external electrodes are protruded relative to a back face of the semiconductor chip.
摘要:
A solid-state imaging-device includes a base, frame-shaped ribs provided on the base and forming an internal space, a plurality of wiring members for electrically leading the internal space of a housing formed by the base and the ribs to an external portion, an imaging element fixed to the base inside the internal space, a transparent plate fixed to an upper surface of the ribs, and connecting members electrically connecting electrodes of the imaging element to the wiring members, wherein a plurality of protrusions are provided in a region of the base that faces the imaging element, and the imaging element is fixed by adhesive to the base while being supported by the protrusions. The protrusions enable the imaging element to avoid distortion caused by following the surface of the base, thereby suppressing the effect on electrical properties of the imaging element.
摘要:
A solid-state imaging device is manufactured according to the steps below. A lattice-shaped rib forming member, which is an aggregation of a plurality of frame-shaped ribs for configuring a plurality of solid-state imaging devices, is resin-molded. An aggregate wiring board is used, which has regions corresponding to a plurality of the wiring boards, and in which a plurality of the wiring members are provided in each of the regions, and the imaging element is fastened to each region of the aggregate wiring board and the electrodes of the imaging elements and the wiring members are connected by a thin metal wire. The rib forming member is placed on the wiring board face and joined to the wiring board face, so that the imaging element is disposed inside the lattice elements of the rib forming member. The transparent plate is fastened to an upper face of the rib forming member, and each housing is cut in a direction perpendicular to the base portion, and in a direction dividing into two the width of the rib forming member, and separating the solid-state imaging devices into individual pieces It is possible to make a low cost housing, avoiding deformations caused by a difference in thermal expansion between the wiring board and the ribs made of a resin, when forming a plurality of housings together.
摘要:
A method for producing a solid-state imaging device including a base of an insulation material having a frame form in planar shape with an aperture formed in an inner region thereof and having a substantially uniform thickness; a wiring provided on one surface of the base and extending toward the outside from the peripheral portion of the aperture; and an imaging element mounted on the surface of the base provided with the wiring so that a light-receptive region of the element faces the aperture. Cavities for resin-molding a plurality of the bases are formed and a tape member supporting thin metal plate leads for forming a plurality of sets of wirings corresponding to the respective bases is loaded between molds having pins for forming positioning holes of the base; and the thin metal plate leads are placed in the cavities. Then, a sealing resin is filled in the cavities and cured. A resin molded member, in which the thin metal plate leads are embedded, is taken out; and the tape member is removed from the resin molded member, and the resin molded member is divided into a plurality of pieces on which an imaging element is mounted. The base on which the imaging element is mounted can be formed to have a practically sufficient flatness.
摘要:
An encapsulated semiconductor device includes: a first conduction path formative plate (1); a second conduction path formative plate (5) joined to the first conduction path formative plate; a power element (12) bonded to the first conduction path formative plate; a heatsink (14) held by the first conduction path formative plate with an insulation sheet (13) interposed between the heatsink and the first conduction path formative plate; and an encapsulation resin (9) configured to encapsulate the first and second conduction path formative plates. A through hole (3) or a lead gap (1b) is formed in a region of the first conduction path formative plate in contact with the insulation sheet. The insulation sheet is press-fitted into the through hole or the lead gap.
摘要:
A joined body which is formed by, first, an aqueous solution containing an oxide film remover is disposed on a junction region of a first metal plate. Then, with the aqueous solution remaining on the first metal plate, a second metal plate is placed on the first metal plate. Thereafter, a load is applied to junction regions of the first metal plate and the second metal plate in the vertical direction, thereby joining the first metal plate and the second metal plate together to form a junction portion.
摘要:
A conduction path includes a first conduction path forming plate (11) made of a first metal and having a through hole (13), and a second conduction path forming plate (15) made of a second metal and having a press-fit portion (17) press-fitted into the through hole. A wall surface of the through hole and a side surface of the press-fit portion forms an inclined bonding surface (18) inclined relative to a normal line of an overlap surface of the first conduction path forming plate and the second conduction path forming plate, and a bonding portion (25) formed by metal flow is formed in a region located in a periphery of the inclined bonding surface.
摘要:
A microphone includes: a substrate including a tone hole and having a top surface on which a substrate electrode is provided; a converter provided on the top surface of the substrate and including a main body having a back space, a diaphragm provided at the bottom of the back space of the main body, and a converter electrode provided on a region of a bottom surface of the main body facing the substrate electrode; and a bump connecting the substrate electrode and the converter electrode to each other. The diaphragm vibrates in response to sound entering from the tone hole. The converter converts sound into a signal.
摘要:
An optical semiconductor device includes: a package having a bottom portion and a sidewall portion; a semiconductor chip having an optical element formed on one surface thereof and having an opposite surface to the one surface fixed to the bottom portion of the package; a transparent member fixed to the semiconductor chip so as to cover the optical element; and a sealing resin filling a space between the package and the semiconductor chip. The sidewall portion has in an upper part thereof an overhang portion that projects toward inside of the package. The transparent member is exposed from a window portion formed by the overhang portion.