Abstract:
The invention relates to a component having a nonconductive surface and furnished with a self-organizing layer and a metallic cover layer. The invention also relates to a cost-effective method, suitable for series production, for producing such a component, and to the use of such a component as a replacement for metal components in vehicles, household appliances, sanitary equipment, and as a printed electronic circuit. In the method according to the invention, the nonconductive surface of a substrate is covered with a catalyst, then with a self-organized layer containing pores, and is finally coated with metals in a chemical metallization bath. The metallization bath penetrates the porous self-organized layer and thereby mechanically anchors the metal on the nonconductive surface better than in the prior art. The component according to the invention is preferably produced with the method according to the invention and includes: a. a nonconductive surface; b. to which catalyst particles are applied; c. wherein a self-organizing layer including pores is applied to and around the catalyst particles; and d. wherein the self-organizing layer is coated with metals wherein the applied metal layer penetrates the pores of the self-organizing layer.
Abstract:
A circuit board and a method for fabricating the same are provided. The circuit board comprises: an aluminum-based substrate; an alumina layer formed on at least one surface of the aluminum-based substrate; and a circuit layer formed on the alumina layer. The alumina layer comprises alumina and an element selected from a group consisting of chromium, nickel, a rare earth metal, and a combination thereof.
Abstract:
A method of forming a non-metallic coating on a metallic substrate involves the steps of positioning the metallic substrate in an electrolysis chamber and applying a sequence of voltage pulses of alternating polarity to electrically bias the substrate with respect to an electrode. Positive voltage pulses anodically bias the substrate with respect to the electrode and negative voltage pulses cathodically bias the substrate with respect to the electrode. The amplitude of the positive voltage pulses is potentiostatically controlled, wheras the amplitude of the negative voltage pulses is galvanostatically controlled.
Abstract:
An insulated metal substrate (IMS) for supporting a device comprises a metallic substrate having a ceramic coating formed at least in part by oxidation of a portion of the surface of the metallic substrate. The ceramic coating has a dielectric strength of greater than 50 KV mm -1 and a thermal conductivity of greater than 5 Wm -1 K -1 .
Abstract:
Es wird ein Verfahren zum Verbinden zweier Fügeflächen, insbesondere in der Halbleitertechnik vorgeschlagen, bei dem mindestens eine Fügefläche durch Abscheiden einer Schicht bestehend aus 20 bis 40% Gold und 80 bis 60% Silber auf einen Träger und selektives Entfernen des Silbers aus der abgeschiedenen Schicht zur Erzeugung einer nanoporösen Goldschicht als Fügefläche hergestellt wird. Die Fügefläche mit nanoporöser Goldschicht und eine weitere Fügefläche werden übereinander angeordnet und zusammengepresst.