Abstract:
A surface-mounted shielded multicomponent assembly, comprising a wafer (1) on which several electronic components (2, 3, 4) are assembled; an insulating layer (30) conformally deposited on the structure with a thickness smaller than the height of the electronic components, comprising at least one opening (31) emerging on a contact (32) of said wafer; a conductive shielding layer (35) covering the insulating layer and said at least one opening; and a resin layer (6) covering the conductive layer.
Abstract:
Provided is a thin film ceramic multilayer wiring board that is appropriate for use as a highly - integrated multilayer wiring board for a probe card which tests a highfrequency module for mobile communication, a microwave connector, a cable assembly, a semiconductor chip, etc., and a method of manufacturing the thin film ceramic multilayer wiring board. The thin film ceramic multilayer wiring board includes: a first conductive structure and a first insulating structure surrounding the first conductive structure, both constituting a multilayer wiring board body; a second insulating structure surrounding the first insulating structure; and a second conductive structure formed on an output pad of the first conductive structure. Here, the second conductive structure is formed by sequentially plating Cu, Ni and Au. According to the thin film ceramic multilayer wiring board and method of manufacturing the same, the second conductive structure is formed using a thin film conductive structure. Therefore, a fine pattern is readily implemented and high integration can be achieved.
Abstract:
Schaltungsträger mit einer metallischen Trägerschicht, auf der zumindest bereichsweise eine dielektrische Schicht angeordnet ist, wobei die dielektrische Schicht eine Vielzahl von Poren aufweist, wobei die Poren zumindest auf der von der Trägerschicht abgewandten Seite der dielektrischen Schicht mit einem Glas versiegelt sind.
Abstract:
Miniature circuitry and inductor components in which multiple levels of printed circuitry are formed on each side of a support panel, typically a printed circuit board or rigid flex. Electrical connection between the plural levels of circuitry and multiple windings around magnetic members are provided by plural plated through hole conductors. Small through hole openings accommodate a plurality of the plated through hole conductors since each is insulated from the others by a very thin layer of vacuum deposited organic layer such as parylene having a high dielectric strength. Adhesion of this plated copper to the organic layer is provided by first applying an adhesive promotor to the surface of the organic layer followed by the vacuum deposition of the organic layer.
Abstract:
A method is disclosed for fabricating a patterned embedded capacitance layer. The method includes fabricating (1305, 1310) a ceramic oxide layer (510) overlying a conductive metal layer (515) overlying a printed circuit substrate (505), perforating (1320) the ceramic oxide layer within a region (705), and removing (1325) the ceramic oxide layer and the conductive metal layer in the region by chemical etching of the conductive metal layer. The ceramic oxide layer may be less than 1 micron thick.