Abstract:
A method for manufacturing an antenna and an antenna structure. The traditional built-in antennae have problems that there is an instability of the antenna RF performance due to the variation of the interval between the RF element and the base body on which the RF element is mounted, it is difficult sometimes to manufacture a RF element with a complicated 3-D configuration, and so on. The present invention provides a method for manufacturing an antenna, comprising: providing a base body; by use of the chemically plating process, forming a chemically plated metal layer on the outer surface of the base body; according to the pattern of the antenna, carving the metal layer on the base body at certain portions to form a RF element pattern so that the portion of the metal layer forming the RF element pattern is separated fully from the remaining portion of the metal layer which will be removed later; electroplating the metal layer of the carved RF element pattern formed on the base body with Cu so as to form an electroplated Cu layer on the pattern of the antenna; removing the portion of the chemically plated metal layer on the base body that has not been electroplated. The present invention also provides a corresponding antenna structure.
Abstract:
A mask for producing a printed circuit board is defined in which the conductor elements of the printed circuit pattern are delineated by a constant width etch band (20). This means that all conductors (3a, 3b, 9) are separated from neighbouring areas of conductive material (22) by the same distance. Thus etch rates across the printed circuit pattern do not vary according to the separation of the conductors (3a, 3b, 9).
Abstract:
Die Erfindung schafft Verfahren zum Metallisieren von Polymerschichtsystemen und entsprechende Polymerschichtsysteme. Das Verfahren enthält gemäß einem Aspekt die Schritte: Bilden eines Schichtstapels (1, 2, 3; 1, 2, 3'; 1, 2, 3"; 1a, 2a, 3a; 1c, 2c, 3c, 3d) mit einem Polymersubstrat (1; 1a; 1c), einer Metallfolie (3; 3'; 3"; 3a; 3c, 3d) und einer dazwischenliegenden Polymermembran (2; 2a; 2c); Bilden von einem oder mehreren Strukturbereichen (6; 6"'; 6""; 6a; 6c, 6d) in der Metallfolie (3; 3'; 3"; 3a; 3c, 3d) mittels eines ersten Laserbestrahlungsschrittes (L2; L2'); und Entfernen der Metallfolie (3; 3'; 3"; 3a; 3c, 3d) aus einem zu dem oder den Strukturbereichen (6; 6"'; 6""; 6a; 6c, 6d) komplementären Bereich (6'). Das Verfahren enthält gemäß einem weiteren Aspekt die Schritte: Bilden eines Schichtstapels (1, 2, 3'; 1, 2, 3") mit einem Polymersubstrat (1), einer strukturierten, zumindest bereichsweise mit Perforationen (4; 4') versehenen Metallfolie (3'; 3") und einer dazwischenliegenden Polymermembran (2); wobei nach dem Bilden des Schichtstapels (1, 2, 3'; 1, 2, 3") ein Laserbestrahlungsschritt (L1) durch eine von der Polymermembran (2) abgewandte Oberfläche (O1) des Polymersubstrats (1) durchgeführt wird, wodurch eine Schweißverbindung zwischen dem Polymersubstrat (1) und der Polymermembran (2) entsteht; und wobei die Polymermembran (2) beim zweiten Laserbestrahlungsschritt (L1) in die Perforationen (4; 4') einfließt und Stege (2a; 2a') ausbildet.
Abstract:
An appliqué for forming a surface coating to a substrate is disclosed. The appliqué contains a sectioned metal foil that provides a large area electrical circuit for connecting electrical devices. The appliqué may provide additional functions including lightning strike protection. The substrate may be an aircraft surface.
Abstract:
Illumination assemblies include a substrate having a first and second electrically conductive layer (32, 36) separated by an electrically insulating layer (40). The insulating layer (40) includes a polymer material loaded with thermally conductive particles (42). At least a portion of the thermally conductive particles (42) simultaneously contact both the first and second electrically conductive layers (32, 36). A plurality of light sources such as LEDs (20) or other miniature light sources are preferably disposed on the first conductive layer (32).
Abstract:
The invention relates to a specific printed circuit (7) comprising independent etched blocks (4) or segments in series of four such that, on a series circuit comprising five LEDs, the four blocks serve as the positioning and connection points for the welding of the pins of the LEDs, said pins being welded in an anode-to-cathode series, or the reverse depending on the direction of the current, i.e. eight electrodes in isolated blocks, such as to ensure that the connection is powered and the LEDs are fixed correctly in series of five. According to the invention, the square or rectangular blocks have a large surface (2) such that the successive holes do not tear the film of epoxy copper. In addition, said blocks are disposed along a path and a successive diagram (21) defines the symbol or pattern to be represented by the LEDs (12) which are disposed and aligned on the other decorated face of the epoxy. The incoming or outgoing bases, which supply the positive (20) or negative (3) power, or the opposite depending on the direction of the LEDs, can comprise the outgoing or incoming base that is common to other series, by means of suitable etching. The negative is always at the centre of the pattern. The circuit is divided into three connection zones, A, B, C, and is powered by external contact springs. The invention is intended for the series powering of a longilineal distribution of five LEDs in series, or a multiple thereof.
Abstract:
A printed wiring board includes one or more substrates, the one or more substrates including at least a first substrate, the first substrate being formed with a pad and a ground layer at any one of main surfaces of the first substrate, the pad being to be electrically connected to a connector as another component, the ground layer being formed to surround the pad from a circumference of the pad and have an inner edge at a location separated from an outer edge of the pad with a predetermined distance, the ground layer being to be grounded to a ground contact.
Abstract:
A multilayered circuit board having a metal-free region vertically extending through at least a portion of a conductive layer, which lies generally parallel to a horizontal plane, vertically spaced from an outer surface. Heat-emitting and heat-sensitive components are mounted on the outer surface. The heat-emitting component is vertically and laterally spaced from the metal-free region, whereas the heat-sensitive component is vertically spaced and laterally aligned within the metal-free region such that the metal-free region is a thermal barrier that shields heat-sensitive component from radial heat flowing from the heat-emitting component.