Abstract:
A method for depositing a solder layer (280) or solder bump on a sloped surface (220). The method includes etching a sloped surface on a planar semiconductor substrate (200), depositing a solder-wettable layer (230) on the sloped surface, masking the wettabler layer with a coating layer (240) to control the position of the solder deposition, and using an organic film (250) to prevent the solder from being deposited at regions not above either the wettable layer or the coating layer. Also, a semiconductor device structure on which a solder layer or solder bump is formed exclusively on a sloped surface.
Abstract:
Disclosed are tapered dielectric and conductor structures which provide controlled impedance interconnection while signal conductor lines transition from finer pitches to coarser pitches thereby obviating electrical discontinuities generally associated with changes of circuit contact pitch. Also disclosed are methods for the construction of the devices and applications therefore.
Abstract:
A method according to which a through hole (100) is made in a body (1) consisting of an electrically insulating material such that said hole connects two surface regions (11, 12) of the body which face in opposite directions. Via at least one section of the side wall (131) of the through hole an electric conductor (19) links an electric contact (111) which is to be connected to a component (2) and situated on a surface region (11) to an electric contact (121) which is to be connected to the mounting surface (3) and situated on the other surface region (12). The invention also relates to novel devices produced by means of the above method.
Abstract:
The invention relates to an integrated component (35) with at least one contact element (20) for connecting the component (35) to a fixing means (90). According to the invention, the component (35) is embodied in such a way that the contact element (20) is disposed in an edge area of the integrated component (35) and the contact element (20) has at least one contact surface (22) which is inclined in relation to a main surface of the component (35). The invention also relates to a method for the production of said component.
Abstract:
Offenbart wird ein Schaltungsträger (ST), insb. ein Keramiksubstrat, für Leistungselektronik, umfassend: eine Bestückungsoberfläche (BF) zum Bestücken von Leistungselektronikbauelementen (LE); - eine von der Bestückungsoberfläche (BF) abgewandt liegende Wärmeübertragungsoberfläche (WF) zur thermischen Kontaktierung des Schaltungsträgers (ST) mit einer Wärmesenke, insb. einem Kühler (KL); mindestens eine Seitenfläche (SF) zwischen der Bestückungsoberfläche (BF) und der Wärmeübertragungsoberfläche (WF); wobei die Längste der mindestens einen Seitenfläche (SF) zu der Bestückungsoberfläche (BF) und der Wärmeübertragungsoberfläche (WF) schräg ausgeführt ist; und - der Schaltungsträger eine von einer ersten Kante (KT1) zwischen der Bestückungsoberfläche (BF) und der längsten Seitenfläche (SF) zu einer zweiten Kante (KT2) zwischen der Wärmeübertragungsoberfläche (WF) und der längsten Seitenfläche (SF) hin sich verjüngende Dicke aufweist.