A method of manufacturing a component carrier is disclosed. The method includes forming a through hole between a first main surface and a second main surface of an electrically insulating layer structure by removing material from at least one of the main surfaces of the electrically insulating layer structure, in particular by irradiating at least one of the main surfaces of the electrically insulating layer structure with at least one laser shot. The at least one main surface from which material is removed, is not covered by an electrically conductive layer structure at least in a surface region in which the through hole is to be formed. Subsequent to formation of the through hole, at least partially filling the through hole and at least partially covering the main surfaces of the electrically insulating layer structure by an electrically conductive filling medium.

A single-layer circuit board, multi-layer circuit board, and manufacturing methods therefor. The method for manufacturing the single-layer circuit board (10) comprises the following steps: drilling a hole on a substrate (11), the hole comprising a blind hole and/or a through hole (S1); on a surface (12) of the substrate, forming a photoresist layer having a circuit negative image (S2); forming a conductive seed layer on the surface (12) of the substrate and a hole wall (19) of the hole (S3); removing the photoresist layer, and forming a circuit pattern on the surface (12) of the substrate (S4), wherein Step S3 comprises implanting a conductive material below the surface (12) of the substrate and below the hole wall (19) of the hole via ion implantation, and forming an ion implantation layer as at least part of the conductive seed layer.

A printed circuit board deformable in both length and width includes a first conductive circuit layer, a second conductive circuit layer, an elastic film, and conductive via holes. The first conductive circuit layer includes first conductive circuits. First honeycomb holes are defined on the first conductive circuits. The second conductive circuit layer faces away from the first conductive circuit layer, the second conductive circuit layer comprises second conductive circuits, second honeycomb holes being defined on the second conductive circuits, each of the second honeycomb holes corresponds to one of the first honeycomb holes. The first conductive circuits are embedded in the elastic film. Each of the conductive via holes corresponds to one first honeycomb holes.

A circuit board includes: a first substrate including a first through hole, a first metal layer formed over an inner wall of the first through hole, and a first conductive composite resin provided on an inner side of the first metal layer of the first through hole; and a second substrate stacked together with the first substrate and including a second through hole that faces the first through hole and has a first open end which is provided on a side of the first through hole and is located on the inner side of the first metal layer, and a second conductive composite resin that is provided in the second through hole and is coupled to the first conductive composite resin.

A technique for making a glass core substrate that is less prone to cracking. A core substrate of the present invention includes a glass plate and a first conductor pattern provided on a first main surface of the glass plate. The first conductor pattern includes a first nickel plating layer that is provided on the first main surface of the glass plate and has a phosphorus content of 5 mass % or less and a first copper plating layer that is provided on the first nickel plating layer.

A method for producing a glass substrate according to the present invention includes the steps of: (I) forming a through hole (11) in a glass sheet (10); (II) forming a resin layer (20) on a first principal surface of the glass sheet (10) using a resin composition sensitive to light having a predetermined wavelength .sub.1; (III) photoexposing an area of the resin layer (20) that covers the through hole (11) by irradiating the area with light U having the wavelength .sub.1 and applied from the direction of a second principal surface of the glass sheet (10); and (IV) forming a through-resin hole (21) by removing the area photoexposed in the step (III). The glass sheet (10) protects the resin layer (20) from the light U so as to prevent the resin layer (20) from being photoexposed by beams of the light U that are incident on the second principal surface of the glass sheet (10) in the step (III).

A one-surface groove for wiring is formed in a front surface 2a, opposite-surface grooves for wiring are formed in a back surface 2b by protruding core members, and communication parts for allowing the one-surface groove and the opposite-surface grooves to communicate with each other are formed to shape a board section 2 made of a non-conductive resin. After the core members are retracted, a conduction-side resin, which will become conductive, is shaped in the one-surface groove, the opposite-surface grooves, and the communication parts to form front-side wiring 3, communication wirings 4, and back-side wirings 5, whereby a wiring circuit component is provided.

A single-layer circuit board, multi-layer circuit board, and manufacturing methods therefor. The method for manufacturing the single-layer circuit board (10) comprises the following steps: drilling a hole on a substrate (11), the hole comprising a blind hole and/or a through hole (S1); on a surface (12) of the substrate, forming a photoresist layer having a circuit negative image (S2); forming a conductive seed layer on the surface (12) of the substrate and a hole wall (19) of the hole (S3); removing the photoresist layer, and forming a circuit pattern on the surface (12) of the substrate (S4), wherein Step S3 comprises implanting a conductive material below the surface (12) of the substrate and below the hole wall (19) of the hole via ion implantation, and forming an ion implantation layer as at least part of the conductive seed layer.

The invention relates to a composition and a process for the deposition of conductive polymers on dielectric substrates. In particular, the invention relates to a composition for the formation of electrically conductive polymers on the surface of a dielectric substrate, the composition comprising at least one polymerizable monomer which is capable to form a conductive polymer, an emulsifier and an acid, characterized in that the composition comprises at least one metal-ion selected from the group consisting of lithium-ions, sodium-ions, aluminum-ions, beryllium-ions, bismuth-ions, boron-ions, indium-ions and alkyl imidazolium-ions. The acid is typically a high molecular weight polymeric acid having molecular weight of at least 500,000 Da including, for example, polystyrene sulfonic acid having a molecular weight of approximately 1,000,000 Da.

A single-layer circuit board, multi-layer circuit board, and manufacturing methods therefor. The method for manufacturing the single-layer circuit board (10) comprises the following steps: drilling a hole on a substrate (11), the hole comprising a blind hole and/or a through hole (S1); on a surface (12) of the substrate, forming a photoresist layer having a circuit negative image (S2); forming a conductive seed layer on the surface (12) of the substrate and a hole wall (19) of the hole (S3); removing the photoresist layer, and forming a circuit pattern on the surface (12) of the substrate (S4), wherein Step S3 comprises implanting a conductive material below the surface (12) of the substrate and below the hole wall (19) of the hole via ion implantation, and forming an ion implantation layer as at least part of the conductive seed layer.