Abstract:
PURPOSE: An electronic unit is provided to fully dispose a cover to the outer circumference of the upper surface of a circuit board so that the whole upper surface is effectively used as an interconnection pattern, by using connecting conductors installed in each penetration hole to connect the interconnection pattern and a ground pattern on the upper surface with a terminal electrode for interconnection and a terminal electrode for ground on the lower surface of the circuit board. CONSTITUTION: The interconnection pattern(2) and the ground pattern(3) are installed on the upper surface(1a) of the circuit board.(1) Electrical parts(9) are disposed on the circuit board. A cover(8) is installed in the circuit board to cover the electrical parts. The terminal electrode(4) for interconnection and the terminal electrode(5) for ground are installed on the lower surface(1b) of the circuit board. The interconnection pattern and terminal electrode for interconnection and the ground pattern and terminal electrode for ground are connected with a connecting conductor(6,7) installed in a penetration hole.
Abstract:
PROBLEM TO BE SOLVED: To carry out wiring work to a piezoelectric element by keeping high reliability while suppressing the deterioration in the yield of the piezoelectric element. SOLUTION: A through-hole 67 is formed in a terminal member 57, an electric insulation layer 61 side is made to face a piezoelectric element 13 side to allow the terminal member 57 to face a common electrode 19. With a first liquid retaining member 69 interposed in a space between the terminal member 57 and the common electrode plate 19 and in the vicinity of the through-hole 67, a conductive adhesive liquid 71 is filled in the through-hole 67. With a second liquid retaining member 101 interposed so as to surround the first liquid retaining member 69, a sealing adhesive liquid 103 is filled to bury the space between the first and second liquid retaining members 69, 101. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
A wired circuit board having terminals that can provide reliable placement of molten metals on the terminals, so as to connect between the terminals and the external terminals with a high degree of precision. An insulating base layer (3) is formed on a supporting board (2), and a conductive pattern (4) is formed on the insulating base layer (3) so that a number of lines of wire (4a,4b,4c,4d) magnetic head connecting terminals (7), and external connecting terminals (8) are integrally formed and also first through holes (9) are formed in the external connecting terminals (8). Thereafter, after an insulating cover layer (10) is formed, third through holes (20) and second through holes (19) are formed in the supporting board (2) and in the insulating base layer (3), respectively, to communicate with the first through holes (9). This can provide the result that when the external connecting terminals (8) are connected to the external terminals (23), the connection can be performed while confirming the placement of the solder balls (21) by means of the respective through holes.
Abstract:
PROBLEM TO BE SOLVED: To provide a package or the like which has proper electrical connections and hermetic sealing, after the upper substrate and the lower substrate are jointed via solder. SOLUTION: An upper-sealing ring 84 and a lower-sealing ring 82 are stuck via sealing solder 72. The leading edge of a sealing protrusion 6 is narrower than the lower-sealing ring 82. Therefore, the sealing solder 72 is provided on the lower-sealing ring 82 and on a side face of the upper-sealing ring 84. In addition, the upper connection pad 83 and the lower connection pad 81 are stuck via connection solder 71. The leading edge of a connection protrusion 5 is smaller in width than the lower connection pad 81. Thus, the connection solder 71 is provided on the lower connection pad 81 and on a side face of the upper connection pad 83. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a flexible electronic component packaging structure with high reliability which suppresses the occurrence of warpages. SOLUTION: An electronic component packaging structure comprises insulating layers 12 and 14 functioning as flexible substrates, an electronic component 20 which is embedded in the insulating layers 12 and 14 so that the whole of the electronic component 20 is covered with the insulating layers 12 and 14, and a wiring layer 16 which is embedded in the insulating layers 12 and 14 and is electrically connected to a connection pad 20a of the electronic component 20. The packaging structure may have a structure, in which a plurality of electronic components are embedded in insulating layers and which is folded to electrically connect the electronic components mutually. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an electrical assembly without adding an electrical wire which connects circuit components, and without a heating effect. SOLUTION: The laminar electrical device of a circuit protection device comprises two laminar electrodes equipped with a PTC element between both, and a cross-conductor which passes through the device and contacts with one of the two electrodes. This permits connection to both electrodes from the same side of the device. This makes it possible to carry out preparing the devices on an assembly which corresponds to a number of individual devices with division of the assembly. COPYRIGHT: (C)2006,JPO&NCIPI