Abstract:
Die Erfindung betrifft eine anschlussbereite elektrische Anordnung (10), umfassend ein Trägerelement (2), auf dem wenigstens eine Leiterbahn (3), wenigstens ein elektrisch betriebenes Bauteil (4) und wenigstens ein Kontaktierungselement (5) angeordnet sind, wobei das Kontaktierungselement (5) zur Herstellung einer ström- und / oder datenleitenden Verbindung zu der wenigstens einen Leiterbahn (3) der anschlussbereiten elektrischen Anordnung (10) dient, die sich dadurch auszeichnet, dass das Kontaktierungselement (5) einen von einer Hülle (5.1) umgebenen Hohlraum (5.2) aufweist, in dem wenigstens ein Kontaktelement (5.3) angeordnet ist, das mit der wenigstens einen Leiterbahn (3) der anschlussbereiten elektrischen Anordnung (10) verbunden ist, und wobei die Hülle (5.1) eine Öffnung (5.4) aufweist.
Abstract:
Provided is a printed circuit board (P), comprising an evaluation device (E) and an electrode configuration of a capacitive sensor, wherein the electrode configuration has at least two electrodes arranged one upon the other and spaced from each other, which each are formed by portions of at least one electrically conductive layer of the printed circuit board (P), and wherein at least one electrode of the electrode configuration is coupled with the evaluation device (E) via a conductor path of the printed circuit board (P). Furthermore, provided is an electric handheld device, which comprises at least one printed circuit board (P) according to the invention.
Abstract:
Calibration standards for accurate high frequency or wide bandwidth calibration measurements. A "short" or "reflect" standard is formed in a printed circuit board from a conductive coating on a generally planar surface. The conductive coating connects a signal trace to one or more ground planes. The generally planar surface is at least as wide as the signal trace and is preferably several times wider than the signal trace to provide a short standard with properties uniform over a wide frequency range. The short standard is incorporated into a printed circuit upon which a device under test is to be mounted. Connections to the short standard are made through components equivalent to components used to connect a device under test. When a through and line standard are added to the same board, the test board contains all the standards needed for a TRL calibration.
Abstract:
A flexi-rigid printed circuit board (5) has a rigid area (7) made up of inner layers (8) of flexible copper and outer layers (9) of rigid insulating material. The board (5) includes an integral flexible heat sink area having springy edge regions (10) of exposed flexible copper layers without outer layers (9) of rigid insulating material, and a metal heat conducting body (12) which is springily engaged for the rigid areas (7) of the board (5).
Abstract:
Die Erfindung betrifft eine Leiterplatte mit zumindest einer nicht leitenden Trägerplatte (1) mit Bauelementen und Leiterbahnen zur elektrischen Kontaktierung der Bauelemente, zumindest einer Niederstromschaltungsanordnung (2) zur Einkopplung oder Übertragung niedriger Stromleistungen und zumindest einer Hochstromschaltungsanordnung (3) zur Einkopplung und/oder Übertragung hoher Stromleistungen. Solche Leiterplatten sind bekannt, weisen jedoch entweder den Nachteil mangeln der Flexibilität oder hoher Herstellungskosten auf. Dies ändert die Erfindung dadurch, dass die Hochstromschaltungsanordnung nur in einem Teil der Leiterplatte angeordnet ist und zur Aufnahme der Leiterbahnen (4) und/oder des Kontaktblocks (5) der Hochstromschaltungsanordnung (3) die Trägerplatte (1) wenigstens eine Bauelementaufnahme (6) in Form einer taschenartigen oder durchgängigen Ausnehmung aufweist, in die die Leiterbahnen (4) und/oder der Kontaktblock (5) der Hochstromschaltungsanordnung (3) eingesetzt ist.
Abstract:
Provided is a process for creating vias for a circuit assembly including the steps of (a) applying a curable coating composition to a substrate, some or all of which is electrically conductive, to form an uncured coating thereon; (b) applying a resist over the uncured coating; (c) imaging the resist in predetermined locations; (d) developing the resist to expose predetermined areas of the uncured coating; (e) removing the exposed areas of the uncured coating; and (f) heating the coated substrate of step (e) to a temperature and for a time sufficient to cure the coating. Also disclosed is a process of fabricating a circuit assembly.
Abstract:
A circuit board layer (2) in accordance with the present invention includes a conductive sheet (4) sandwiched between an insulating top layer (10) and an insulating bottom layer (14). The top and bottom layers (10) and (14) and the conductive sheet (4) define the circuit board layer (2) having an edge that includes an edge (20) of the conductive sheet (4). An insulating edge layer (18) covers substantially all of the edge (20) of the conductive sheet (4).
Abstract:
A card manufacturing technique and the resulting card are provided. The card has a ground and/or power layer (112) extending to the edges of a circuit board for electrostatic discharge protection but also has gaps (112a) at the edge of the ground and/or power layer (112) to avoid short circuiting with conductive segments (160) of another layer deformed when the card is trimmed during manufacture.