A packaging substrate includes a core layer including a glass substrate with a first surface and a second surface facing each other, and a plurality of core vias. The plurality of core vias penetrating through the glass substrate in a thickness direction, each comprising a circular core via having a circular opening part and a non-circular core via having a 1.2 or more aspect ratio in the x-y direction of an opening part. One or more electric power transmitting elements are disposed on the non-circular core via.

The present disclosure provides circuits and methods for fabricating circuits. A circuit may include an insulator having a first surface, a second surface, a periphery, a first subset of circuit elements disposed on the first surface, a second subset of circuit elements disposed on the second surface, and at least one conductive sidewall disposed on the periphery, wherein the conductive sidewall electrically couples the first subset of circuit elements to the second subset of circuit elements.

A wiring substrate includes a first conductor layer including wirings, an interlayer insulating layer formed on and covering the first conductor layer, a wiring layer formed in the interlayer insulating layer and including wirings, a second conductor layer formed on the interlayer insulating layer and including wirings, and a via conductor formed in the interlayer insulating layer such that the via conductor is penetrating through the interlayer insulating layer and connecting the first and second conductor layers. The interlayer insulating layer includes first and second insulating layers such that the wiring layer is formed on a surface of the first insulating layer, and the wiring layer is formed such that an aspect ratio of the wirings in the wiring layer is in the range of 2.0 to 6.0 and that aspect ratios of the wirings in the first and second conductor layers are in the range of 1.0 to 2.0.

A packaging substrate includes a core layer including a glass substrate with a first surface and a second surface facing each other, and a plurality of core vias. The plurality of core vias penetrating through the glass substrate in a thickness direction, each comprising a circular core via having a circular opening part and a non-circular core via having an aspect ratio of 2 to 25 in the x-y direction of an opening part. One or more electric power transmitting elements are disposed on the non-circular core via.

A method for producing a multilayer substrate (1) is specified, wherein a main body (26) comprising a plurality of ceramic layers (2) is provided, wherein at least one layer (2) comprises a hole (27). In order to form a plated-through hole (4, 18, 20, 21), the hole (27) is filled with a metal by depositing the metal from a solution. Furthermore, a multilayer substrate is specified wherein a plated-through hole (4, 18, 20, 21) in the interior of the main body (26) is connected to a further contact (11), wherein the plated-through hole (4, 18, 20, 21) comprises a different material than the further contact (11) and/or is produced by a different method.

macros hash =multilayer substrate star =plated-throuch hole pie =connection contact alpha =photoresist mask beta =further contact gamma =HTCC technology delta =main body matt =ceramic layer

A method for manufacturing a multilayer circuit board includes: forming a first patterned conductive layer on a ceramic substrate, the first patterned conductive layer having a first circuit pattern and a first submount pattern; forming a second patterned conductive layer on the first patterned conductive layer, the second patterned conductive layer having a second circuit pattern and a second submount pattern; forming an insulating layer on the ceramic substrate; and forming a third patterned conductive layer on the insulating layer. The third patterned conductive layer having a third circuit pattern and a third submount pattern. The first, second and third submount patterns are stacked one above another.

A circuit board includes an inorganic material insulating layer, a first circuit pattern layer formed on a surface of the inorganic material insulating layer, a first build-up insulating layer formed on the inorganic material insulating layer and formed of an organic material, and a second circuit pattern layer formed on a surface of the first build-up insulating layer.

A package that includes a substrate and an electrical component coupled to the substrate. The substrate includes at least one dielectric layer, a plurality of interconnects located in the at least one dielectric layer, and a solder resist layer located over a surface of the at least one dielectric layer. The solder resist layer includes a first solder resist layer portion comprising a first thickness, and a second solder resist layer portion comprising a second thickness that is less than the first thickness. The electrical component is located over the second solder resist layer portion.

A printed circuit board may include: a first circuit layer; a first insulating layer disposed on the first circuit layer; a high-rigidity layer disposed on the first insulating layer; and a second circuit layer disposed on the high-rigidity layer and connected to the first circuit layer by a first via extending through the first insulating layer and the high-rigidity layer, wherein a rigidity of the high-rigidity layer is greater than a rigidity of the first insulating layer.

There are provided a printed circuit board and a method of manufacturing the same. The printed circuit board include a glass plate, an insulating member penetrating through the glass plate, insulating layers disposed on a first surface and a second surface of the glass plate, and a via through the insulating member.