Abstract:
Die Erfindung betrifft ein elektrisches Gerät 1 für den Einsatz in einem kontaminierenden Medium, mit einem Leiterbahnsubstrat 2, das auf wenigstens einer Oberfläche 21 des Leiterbahnsubstrats 2 wenigstens eine elektrische Kontaktfläche 22 aufweist, und mit einer Schutzfolie 3, welche an dem Gerät 1 derart angeordnet ist, dass die wenigstens eine elektrische Kontaktfläche 22 zwischen der Schutzfolie 3 und dem Leiterbahnsubstrat 2 vor dem kontaminierenden Medium geschützt angeordnet ist. Es wird vorgeschlagen, dass die Schutzfolie 3 durch eine flexible Leiterbahnfolie 30 gebildet wird, die wenigstens eine dem Leiterbahnsubstrat 2 zuweisende elektrische Anschlussfläche 36 aufweist, die mit der wenigstens einen elektrischen Kontaktfläche 22 elektrisch leitend verbunden ist. Ferner betrifft die Erfindung ein Verfahren zur Herstellung eines solchen Gerätes.
Abstract:
L'invention concerne un dispositif de protection d'un circuit imprimé électronique, au moins une zone de contact conductrice (110,120) entre ledit circuit imprimé (10) et un élément de sécurisation (30,40) dudit circuit imprimé. Selon l'invention, ledit dispositif comprend en outre au moins un plot de surélévation (50) de ladite au moins une zone de contact conductrice (110,120), ledit élément de sécurisation (30, 40) entrant en contact avec ladite zone de contact conductrice (110) par l'intermédiaire d'une zone de contact conductrice dudit plot de surélévation (50).
Abstract:
An hermetically sealed integrated microwave circuit comprising a coplanar waveguide on a PCB (3, 4) electrically connected on one major surface to an IC, and thermally and electrically connected to a BGA (5) on its opposite major surface, in which the PCB has at least first and second printed layers, a microwave signal path extends from a ball of the BGA through a through-hole in both printed layers to the coplanar wave guide, and plural ground paths extend from balls (51) of the BGA (5) through first through-holes in the first printed layer of the PCB and through second through-holes of the second printed layer of the PCB, the first and second through-holes being non-coincident, to allow for an hermetic seal across the PCB whilst introducing a predetermined impedance in the PCB between the signal and ground paths.
Abstract:
A circuit board unit (61) of an ECU (12) has an upper surface (61a) on which semiconductor elements (77) are installed, a lower surface (61b) that is on the opposite side of the circuit board unit (61) from the upper surface (61a), and a cutout portion (91) that is formed below the upper surface (61a). A power module (62) includes a conductive protruding piece (101) and an electrically insulating main portion (65) that holds the protruding piece (101). The conductive protruding piece (101) is inserted in the cutout portion (91) to support the circuit board unit (61), and is electrically connected to the semiconductor elements (77).
Abstract:
A board connection structure that enables removal of a board while thinning an electronic apparatus in which circuit boards are mounted and by saving space. This structure comprises a first board (1) with a matrix arrangement of electrode terminals (10) on the surface layer, a second board (2) with a matrix arrangement of electrode terminals (20), opposed to the electrode terminals (10), on the surface layer, and an anisotropic conductive member (3) arranged between the first and second boards (1, 2) in the position facing the electrode terminals (10, 20). The first and second boards (1, 2) and the anisotropic conductive layer (3) are pressed with a pressing component (4) to electrically connect the electrode terminals (10, 20) via the anisotropic conductive member (3).
Abstract:
A substrate (101) includes a storage portion (101C) which is defined by a base for mounting a light emitting element (102) and a wall portion standing up on and from the base. A package (100) is structured such that the upper end of the wall portion so formed as to surround the periphery of the storage portion (101C) is connected to a cover (103) to thereby seal a light emitting element. A seal structure (130; 330; 430) is composed of an uneven portion (140; 340) formed on the lower surface side surface of the base (101A), a close contact layer (150) formed on the surface of the uneven portion (140; 340), a power supply layer (160) formed on the close contact layer (150), and an electrode layer (170) formed on the surface of the power supply layer (160). The uneven portion(140; 340) includes a first recessed portion (180) formed at a position spaced in the radial direction from the outer periphery of a through electrode (107) or from the inner wall of a through hole (120), and a second recessed portion (190) formed at a position spaced further outwardly from the first recessed portion (180).
Abstract:
To provide a PCB that does not generate a short-circuit problem even at a very- small pitch and has high connection reliability a method is provided for connecting a PCB (10) having a connection portion (3) to a second PCB (20) having a connection portion (33) wherein the connection portion of one or both of the PCBs has at least one conductive bump (4) , and comprising: positioning the connection portion of the PCB opposite the connection portion of the second circuit board with a thermosetting adhesive film (30) between the connection portions of the PCB and second circuit board, and applying heat and pressure to the connection portions and the thermosetting adhesive film such that the adhesive film is displaced sufficiently to allow electrical contact between the at least one bump and the connection portion of the opposing circuit board and such that the heat is sufficient to cause the adhesive to set. Also provided is an article comprising a PCB having a connection portion with at least one conductive bump, and a thermosetting adhesive film on the surface of the connection portion.
Abstract:
A flexible printed wiring board (10) in which a metallic bump (1a) of a first flexible printed wiring part (1) is connected to a connection pad (2a) of a second flexible wiring part (2), wherein the first flexible printed wiring part (1) is composed of a conductive layer (4) and an insulating layer (5) adjacent to the conductive layer (4), a hole (A) reaching the conductive layer is made in the insulating layer (5), a metallic plug (6) is formed in the hole (A) by electroplating, and the end of the metallic plug (6) projecting from the insulating layer (5) serves as a metallic bump (1a). As many flexible printed wiring boards as possible are produced from a laminated sheet for a flexible printed wiring having a predetermined size.