Abstract:
Carte de circuit imprimé possédant un élément de base de support (2) en aluminium anodisé. Un film de colle (4) est placé entre l'élément de base de support et une couche laminée (7) comportant un circuit imprimé (6a, 6b), le film de colle bouchant tous les pores dans le film anodique de l'élément de base de support.
Abstract:
PURPOSE: A manufacturing method of a wiring board and a passage structure are provided to reduce thermal stress by including a plurality of penetration through holes. CONSTITUTION: An external penetration hole passes through a core material. Insulation resin is filled in the external penetration hole. A first conductive layer (10A) is formed on the surface of the insulation resin. A land (10B) is formed around the first conductive layer. A wiring layer (20) is laminated on the core material.
Abstract:
본 발명에 따른 회로 기판층(2)은 절연 최상부층(10)과 절연 최하부층(14) 사이에 샌드위치된 전도성 시트(4)를 포함한다. 최상부 및 최하부층(10,14)과 전도성 시트(4)는 전도성 시트(4)의 에지(20)를 포함하는 에지를 가진 회로 기판층(2)을 정의한다. 절연 에지층(18)은 전도성 시트(4)의 모든 에지(20)를 상당히 도포한다.
Abstract:
Disclosed are a hybrid integrated circuit device and a method of manufacturing thereof which can enhance reliability of connections between conductive patterns and a circuit board. A method of manufacturing the hybrid integrated circuit device comprises the steps of providing an insulating layer on a surface of the circuit board made of metal, forming conductive patterns on the surface of the insulating layer so as to constitute a plurality of units, forming exposure holes so as to penetrate the insulating layer in the respective units and thereby to expose the circuit board from bottom portions of the exposure holes, forming flat portions at the bottom portions of the exposure holes in the respective units, electrically connecting circuit elements to the conductive patterns in the respective units, electrically connecting the flat portions to the conductive patterns in the respective units by use of thin metallic wires, and separating the respective units.
Abstract:
PURPOSE: A hybrid integrated circuit device is provided to prevent erroneous operation and noise of electric circuit, by connecting a conductive pattern connected to a ground potential, to a metal substrate in the vicinity of a semiconductor device operating at a high speed. CONSTITUTION: A hybrid integrated circuit device(10) comprises a metal substrate(11) having a surface on which an insulation layer(17) is formed; a conductive pattern(12) formed on a surface of the insulation layer; a semiconductor element(15A) bonded on the conductive pattern; and a connection portion(20) or electrically connecting the conductive pattern and the metal substrate in the vicinity of the semiconductor element.
Abstract:
PURPOSE: A multi-layered wire structure and a method for fabricating thereof are provided to improve the reliability of connection between a filling layer and a wire layer of a multi-layered wire structure, without a process such as polishing deteriorating the yield of a product. CONSTITUTION: A multi-layered wire structure includes a bottom wire layer(103a), an intermediate insulation layer, a filling layer(106,112), a top wire layer(109a) and a plated layer(113). The bottom wired layer is formed on a lead frame through an insulation layer. The intermediate insulation layer is formed on the bottom wire layer and has a via hole in a fixed region so as to reveal a top part of the bottom wire layer. The filling layer is made of a conductive material and the via hole fills with the conductive material. The top wire layer is formed on the intermediate insulation layer and has an opening unit on a top part of the region where the via hole is formed. The plated layer is formed on the top wire layer and is connected to the filling layer.
Abstract:
Disclosed is a circuit comprising a first printed circuit board (2a) and a second printed circuit board (2b). The first circuit board is provided with a metal supporting board (14) and an insulating layer (8) which electrically insulates the metal supporting board on a surface, the supporting board being without any insulating layer in at least one connection region (10a-10d). The supporting board is metal-coated (12) in the connection region, and a contact (30a) of a semiconductor (30) is electrically contacted on the metal coating of the connection region. The second circuit board is provided with a metal supporting board (2b), an insulator (16) that electrically insulates the metal supporting board (24) on a surface, and a conducting layer (18) that is applied to the insulator. The insulator and the conducting layer have a breakdown region (21) in at least one contact zone, and at least one metal contact pad (20) is arranged in the contact zone in such a way that the contact pad is peripherally disposed at a distance from the insulator and from the conducting layer. The circuit boards in the circuit are separated from one another by an air gap (28) and are mechanically interconnected by at least one power semiconductor device (30).
Abstract:
Eine Trägervorrichtung hat einen Metallträger (1), einen Keramik-Leiterträger (2), der auf dem Metallträger (1) angeordnet ist, und einen Flex-Folien-Leiterträger (4), der mittels einer Bondverbindung mit dem Keramik-Leiterträger (2) elektrisch leitend gekoppelt ist und der mittels eines elektrisch leitenden Koppelelements (12) mit dem Metallträger (1) über Formschluss und/oder Kraftschluss elektrisch leitend gekoppelt ist.
Abstract:
A circuit board, in particular, a high-power printed circuit board assembly with the function of heat emission used for radio frequency circuit. Also a manufacturing method thereof which is used to solve the problem of electrical connecting between a copper layer and a metal component when the metal component is bonded to the printed circuit board. The printed circuit board assembly in this invention comprises a printed circuit board covered by a copper layer and a metal component that is bonded to the printed circuit board. It further comprises electric conducting holes which are bored through the copper layer and the metal component, and metal films are plated on the surface of inner wall of the electric conducting holes so as to make it be electrically connected between the copper layer and the metal component. The said manufacturing method comprises: a) a printed circuit board and a metal component are pressed together with an adhesive material between them to form an assembly; b) the assembly is bored to form the electric conducting holes and the electric conducting holes are through the copper layer and the metal component; c) metal films are plated on the surface of inner wall of the electric conducting holes so as to make it be electrically connected between the copper layer and the metal component.
Abstract:
A circuit board or each circuit board of a multi-layer circuit board includes an electrically conductive sheet coated with an insulating top layer covering one surface of the conductive sheet, an insulating bottom layer covering another surface of the conductive sheet and an insulating edge layer covering an edge of the conductive sheet. An insulating interlayer can be sandwiched between a pair of adjacent circuit boards of a multi-layer circuit board assembly. A landless through-hole or via can extend through one or more of the circuit boards for connecting electrical conductors on opposing surfaces thereof.