Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive external connection terminal of a metal core substrate which can be made small and thin at low cost by eliminating the need to mount a connector on the metal core substrate. SOLUTION: Disclosed is the external connection terminal 15 of the metal core substrate 10 which is disposed at a terminal portion of the metal core substrate 10 for mounting an electronic component 17 on at least one surface of top and rear surfaces of a plate type metal substrate 11, and makes an electric connection with the outside. The external connection terminal 15 is composed of a member which has smaller heat conductivity than the metal substrate, and has, on its surface, an electrode pattern portion 16a for soldering and fixing a lead wire to be connected to the outside. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To manufacture a circuit board which can be used for various electric instruments and has a circuit pattern made of a metal foil. SOLUTION: A copper foil 41 that is the base material of a foil circuit 21 is wound around a roller 42, and reeled out by feeding means 43. Resin plates 20 stacked on a stocker 45 are taken out one by one with being synchronized with transfer of the copper foil 41. The resin plates 20 are placed on a stacking table 46, then risen upward, and pushed up toward the copper foil 41. The stacking plate 46 is three dimensionally position controlled so that anchor pins 20a of the resin plate 20 are inserted into pinholes 21a perforated through the copper foil 41. After being superposed on the resin plate 20, the copper foil 41 is caused so as not to be released from the resin plate 20 by descending a heat press 48 to push and crush the top portions of the anchor pins 20a by heat. The copper foil 41 integrated with the resin plate 20 is punched through into a foil circuit 21 by a punch-through press 49. Manufactured circuit boards 19 are conveyed out and stacked in a stocker 52. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electron source equipped with a wiring board in which a resistance value of a wire itself will not change with time. SOLUTION: The electron source is provided with a board having a groove on the surface, a wiring board equipped with a conductive wire with at least a part of it arranged in the groove and a wiring arranged on the wire so as to cross the same, and a plurality of electron emission elements arranged on the wiring board and electrically connected with the conductive wire as well as with the wiring. The surface of the wire is covered with a coating layer made of oxide of a material constituting the wire. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a highly reliable semiconductor power module by preventing deterioration of breakdown voltage of a semiconductor power module and characteristic variation of a semiconductor chip. SOLUTION: A printed substrate 102 is formed to an elastic structure for absorbing stress received from a silicone gel 101 passing through the printed substrate 102 by the printed substrate 102. Additionally, the printed substrate 102 is made narrow for escaping stress. Meanwhile, wiring whereto a high voltage is applied is patterned to different printed substrates, and discharge whose path is the same printed substrate surface is prevented. Consequently, it is possible to airproof a power module, to prevent permeation of moisture and contaminant, and to prevent displacement deformation and cracks of a lid plate 105. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a distortion-endurable electric connection structure and its forming method. SOLUTION: A conductive lead such as wire is connected with an electric circuit in such a form as to generate a connection assuring excellent endurance against a mechanical stress caused by a motion of the lead relative to the electric circuit, a rotation, etc. A material to produce a region as decreasing the deflecting compliance or heightening the stiffness in the area near the connection point is formed around the lead and near the connection point to the electric circuit. According to one embodiment, the lead may assume a coil form or a shape capable of heightening still more the endurance against the mechanical stress. In another example of embodiment, it is also considerable of installing additionally an element which assists controlling the stiffness of the area around the connection point. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a substrate having a through via penetrating a basic material and wiring being connected with the through via in which generation of void in the through via is suppressed and electrical connection reliability of the wiring and the through via can be enhanced, and to provide its production process. SOLUTION: The through via 55 is constituted of a through portion 57, a wiring joint 56 provided at one end of the through portion 57 and wider than the diameter R1 at the through portion 57, and a connection pad 59 provided at the other end of the through portion 57 and wider than the diameter R1 at the through portion 57, and a conductive core material 58 located substantially on the central axis D of the through hole 52, and the through via 55 is formed by depositing conductive metal by using the conductive core material 58 as a power supply layer. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PURPOSE:To form an inductance element without going through a heating process by forming an insulating coil into an inductance element directly on an insulating substrate with a supersonic bonding device after soldering other circuit elements. CONSTITUTION:After conductive routes 2 and 2' are formed on a circuit substrate 1 and a desired circuit element 3 is soldered, a bobbin 5 is arranged on the circuit substrate 1. An end of a coil 7 is supersonically bonded on the conductive route 2 of the substrate 1 with a supersonic bonding device, the insulating coil 7 is wound on a bobbin 5 through revolving the circuit substrate 1, and another end of the insulating coil 7 is supersonically bonded to another conductive route 2'. As, thus, an inductance element can be built in on the circuit substrate 1 besides an IC, a transistor, a chip condenser o a circuit element 3 of chip resistance, external parts can be almost unnecessary, the inductance element is built in after a heating process of soldering, a short circuit never occurs because of heating the insulating coil 7.
Abstract:
PURPOSE:To obtain the inductance elements of extremely small size and low price and to form the elements in an arbitrary position of an insulating substrate continuously by forming the elements on the insulating substrate directly by use of a supersonic bonding device of insulating wires. CONSTITUTION:After a copper foil is stuck to the overall surface of one of the main planes of an insulating substrate 1, the copper foil is etched selectively to form the conductive paths of desired pattern. A winding frame body 3 is placed and fixed on the insulating substrate 1 with being close to the conductive paths by an adhesive 4. The winding frame body 3 has a function of winding the wire for forming an inductance element. One end of a wire 5 is supersonic- bonded on one of the conductive paths 2 by use of a supersonic bonding device. The insulating wire 5 is wound on the winding frame body 3 by providing a capillary chip 9 around the body 3. During this process, the insulating wire 5 is wound on the body 3 only by the predetermined number of tuns in one direction into a coil from thereby obtaining the inductance element of desired value.