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 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:
A lead frame is buried in mold resin to form a mold structure. A wide blade is used to make an indentation having an alignment step in the mold structure. Then, a narrow blade is used to split the mold structure. At the outer perimeter portion of a base which is a separate part separated from the mold structure, an alignment step is formed. Due to the alignment step, an optical element, such as a mirror tube of an imaging optical system, or the like, is readily and quickly attached.
摘要:
An optical device includes a base of ring shape, and an optical chip and a transparent plate both attached to the base. The upper surface of the base is formed with a tapered recess inclined downwardly from its flat portion toward the opening. A gap between the tapered recess and the transparent plate is formed with an adhesive layer. Even if a gap between the transparent plate and the flat portion of the base is narrowed, the adhesive layer with a great thickness present between the tapered recess and the lower surface of the transparent plate maintains the mechanical adhesion strength between the base and the transparent plate. A raised ring and a recessed ring prevent adhesive from entering a positioning hole and the opening.
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:
An adhesive sheet is attached to a package substrate having a through hole so that an ultraviolet (UV) curable resin layer of the adhesive sheet faces the package substrate. Light is then radiated to the UV curable resin layer through the through hole in order to cure the exposed part of the UV curable resin layer. The cured part of the UV curable resin layer is removed together with a base film of the adhesive sheet. A glass plate is then attached to the UV curable resin remaining on the package substrate. Light is then radiated to bond the glass plate to the package substrate.
摘要:
An inventive leadframe includes an outer frame, a die pad, and a plurality of leads each having land portions and connections. The land portions each have an upper surface serving as a bonding pad to be connected with a metal wiring, and a lowermost part serving as an external terminal. The connections are each devoid of its lower part so as to be thinner than the land portion, and are provided between the outer frame and the land portions, between the land portions associated with each other in each lead, and between the land portions and the die pad. Furthermore, the inventive leadframe is provided with no member that functions as a suspension lead for connecting the outer frame and the die pad to each other during plastic encapsulation.
摘要:
There is provided a solid-state imaging device including: a base that has a through hole penetrating therethrough from a first principal face thereof to a second principal face thereof; a solid-state imaging element whose imaging surface faces an opening on the second principal face side of the through hole and that is fixed to a peripheral region of the opening with a sealing resin; and a translucent plate that is fixed to a peripheral region of an opening on the first principal face side of the through hole with a sealing resin, wherein the peripheral region of at least one of the opening on the first principal face side and the opening on the second principal face side is roughened more than other regions of the base. Thus, a solid-state imaging device that can reduce resin bleeding, while ensuring connection reliability, is provided.
摘要:
An optical device includes a base of ring shape, and an optical chip and a transparent plate both attached to the base. The upper surface of the base is formed with a tapered recess inclined downwardly from its flat portion toward the opening. A gap between the tapered recess and the transparent plate is formed with an adhesive layer. Even if a gap between the transparent plate and the flat portion of the base is narrowed, the adhesive layer with a great thickness present between the tapered recess and the lower surface of the transparent plate maintains the mechanical adhesion strength between the base and the transparent plate. A raised ring and a recessed ring prevent adhesive from entering a positioning hole and the opening.