Abstract:
This disclosure provides systems, methods and apparatus providing electrical connections through glass substrates. In one aspect, a thin film through-glass via including a through-glass via hole and a thin conductive film that conformally coats the sidewalls of the through-glass via hole is provided. A contour of a through-glass via hole may include concave portions that overlap at a midsection of the glass, with the through-glass via hole sidewalls curved inward to form the concave portions. In another aspect, one or more methods of forming through-glass vias are provided. In some implementations, the methods include double-sided processes to form aligned via holes in a glass substrate that together form a contoured through-glass via hole, followed by deposition of a thin continuous film of a conductive material.
Abstract:
A surface mount electrical interconnect adapted to provide an interface between solder balls on a BGA device and a PCB. The electrical interconnect includes a socket substrate with a first surface, a second surface, and a plurality of openings sized and configured to receive the solder balls on the BGA device. A plurality of electrically conductive contact tabs are bonded to the first surface of the socket substrate so that contact tips on the contact tabs extend into the openings. The contact tips electrically couple with the BGA device when the solder balls are positioned in the openings. Vias are located in the openings that electrically couple the contact tabs to contact pads located proximate the second surface of the socket substrate. Solder balls are bonded to the contact pad that are adapted to electrically and mechanically couple the electrical interconnect to the PCB.
Abstract:
A method of making a circuit board comprising the steps of: (1) forming two or more metallized vias through at least a portion of a circuit board; and (2) forming an isolation opening between the two or more metallized vias, whereby at least a portion of the metallization is removed from at least one of the two or more vias.
Abstract:
A printed circuit board comprises a substrate (1) of an electrically insulating material, a plurality of electrical current carrying paths (2) of electrically conductive material on the substrate and a plurality of integrally formed insulation displacement connectors (4) connected to the paths. The connectors may be edge connectors, or connectors within the periphery of the board or a combination of both. An edge connector is formed with a slot (5) which may be at an angle to the plane of the board. A connector within the periphery of the board comprises a larger diameter portion leading to a slot and means for pushing an insulated conductor inserted in the larger diameter portion into the slot. This arrangement results in fewer components to assemble, higher frequency performance, reduced cross-talk, space savings and lower costs.
Abstract:
A wiring board (3) in accordance with an embodiment of the invention includes: an inorganic insulating layer (13) having a via hole (V) formed so as to penetrate the inorganic insulating layer (13) in a thickness direction thereof; a conductive layer (11) disposed on the inorganic insulating layer (13); and a via conductor (12) which adheres to an inner wall (W) of the via hole (V) and is connected with the conductive layer (11). The inorganic insulating layer (13) includes a first section (33) including a plurality of inorganic insulating particles (16) partly connected to each other, and a resin portion (18) located in gaps (17) between the inorganic insulating particles (16), and a second section (34) which is interposed between the first section (33) and the via conductor (12), including a plurality of inorganic insulating particles (16) partly connected to each other, and a conducting portion (19) composed of part of the via conductor (12) which is located in gaps (17) between the inorganic insulating particles (16).
Abstract:
The present invention relates to a component carrier (100) comprising a layer stack (101) formed of an electrically insulating structure and an electrically conductive structure. Furthermore, a bore (110) extends into the layer stack (101) and has a first bore section (111) with a first diameter (D1) and a connected second bore section (112) with a second diameter (D2) differing from the first diameter (D1). A thermally conductive material (102) fills substantially the entire bore (110). The bore is in particular formed by laser drilling.