Abstract:
A wired circuit board (1) includes an insulating base layer (3), a conductive pattern (4) formed on the insulating base layer and including a wire (7) and a terminal portion (8), an insulating cover layer (6) formed on the insulating base layer and having an opening portion (11) to expose the terminal portion, and a metal thin film (5) including a protecting portion (9) interposed between the wire and the insulating cover layer, and an exposed portion (10) formed continuously from the protecting portion on a peripheral end portion (16) of the terminal portion exposed from the opening portion.
Abstract:
Method and system for depositing a frozen adhesive particle at a predetermined spot on a target body, comprising launching means (13) which are arranged to launch the particle (2) in its frozen form towards the target body (3, 4) via a movement path (14) through a gap (15) between the launching means and the target body. The medium in the gap may have a temperature above the adhesive particle's melting temperature. The launching means may be arranged to launch the particle at a high speed. The launching means and the target body may have a geometry causing that the movement path is substantially vertical or substantially horizontal.
Abstract:
When a multilayer electronic component having a ceramic substrate and a resin layer is mounted on a mounting substrate, the thickness of solder used in the above mounting is made not to interfere with reduction in size and height of an electronic device including the above multilayer electronic component. Recess portions (8, 9) are formed at an outside-facing major surface (7) side of a resin layer (5). In the resin layer (5), columnar conductors (10, 11) are disposed so that axis line directions thereof are aligned in a thickness direction of the resin layer (5). End portions (14, 15) of the columnar conductors (10, 11) are located inside the recess portions (8, 9) further from opening faces thereof and have end surfaces (16, 17) exposed in the recess portions (8, 9). When a multilayer electronic component (1) is mounted on a mounting substrate (26), solder is provided on the end surfaces (16, 17) of the columnar conductors (10, 11) in the recess portions (8, 9).
Abstract:
The invention relates to a package board composed as a multi-layer wiring board, comprising a plurality of conductor circuits (158U,158D) formed in an outermost layer, an insulating layer (150) for supporting a plurality of said conductor circuits formed in said outermost layer and a plurality of inner layer conductor circuits formed under said insulating layer, wherein a plurality of said inner layer conductor circuits are a power supply layer (58U) and/or a ground layer (58D), a soldering bump (76U,76D) is formed, through said insulting layer, on each via-hole (160U,160D) connected to an inner layer conductor circuit.
Abstract:
A circuit device for interconnecting first and second multilayer circuit boards is described herein. The first multilayer circuit board may include a first plurality of electrically conductive vias of varying depths and the second multilayer circuit board may include a second plurality of electrically conductive vias. The circuit device comprises a first plurality of pins located on a first side of the circuit device corresponding to the first plurality of electrically conductive vias of the first multilayer circuit board, each pin having a length compatible with a depth of a respective one of the first plurality of electrically conductive vias of the first multilayer circuit board. The circuit device further comprises a second plurality of pins located on a second side of the circuit device corresponding to the second plurality of electrically conductive vias of the second multilayer circuit board.
Abstract:
Products and assemblies are provided for socketably receiving elongate interconnection elements (516), such as spring contact elements, extending from electronic components (518), such as semiconductor devices. Socket substrates (504) are provided with capture pads (506) for receiving ends of elongate interconnection elements (516) extending from electronic components (518). Various capture pad configurations are disclosed. A securing device such as a housing (520) positions the electronic component securely to the socket substrate (504). Connections to external devices are provided via conductive traces (510) adjacent the surface of the socket substrate. The socket substrate (504) may be supported by a support substrate (502). In a particularly preferred embodiment the capture pads are formed directly on a primary substrate such as a printed circuit board.
Abstract:
A method of producing a printed wiring board (3) comprising a mounting recess portion (1) for mounting an electronic part, a conductor pattern (7), and a heat-sink plate (6) arranged at the bottom of the mounting recess portion (1), characterized in that a conductor pattern (7) is formed on an insulating substrate (5); a heat-sink plate (6) is adhered to a lower face of a portion of the insulating substrate (5) forming the mounting recess portion; and a laser beam (2) is irradiated to an upper face of the portion (10) forming the mounting recess portion to form a mounting recess portion (1).
Abstract:
A printed wiring board (802) comprising an insulating substrate (806), a conductor pattern formed on a surface of the insulating substrate (806), a solder filling hole (801) passing through the insulating substrate (806) and arriving at an upper surface of the conductor pattern (851) and a solder (807) filled in the solder filling hole (801), characterized in that the insulating substrate (806) includes fibers (861) therein, and end portions (863) of the fibers (861) protrude from a wall face (810) of the solder filling hole (801) and encroach into the solder (807).