摘要:
A semiconductor device includes a support body, a first substrate provided on a surface at one side of the support body, a second substrate provided on a surface at the other side of the support body, and a semiconductor chip provided on the first substrate exposed to an opening part piercing the support body and the second substrate. The first substrate includes a first dielectric layer and a wiring layer, a plurality of first electrodes connected to the semiconductor chip which first electrodes are provided on a first surface of the first substrate exposed to an inside of the opening part, and the second substrate includes a second dielectric layer made of a material substantially the same as the first dielectric layer.
摘要:
A printed wiring board is made of first and second substrates superimposed on each other. The first and second substrates respectively include a core layer made of resin containing carbon fibers. The second substrate has the outline different from that of the first substrate. A stepped surface is defined on the front surface at least of the first substrate. Electrodes can be formed on the stepped surface as well as on the back surface of the first substrate and the front surface of the second substrate. This structure enables detection of an electric signal from the stepped surface. A further flexibility can thus be achieved in locating electrodes as compared with a conventional printed wiring board having uniform substrates simply superimposed on each other. This results in an expanded use or purpose for a printed wiring board.
摘要:
A multilayer wiring board (X1) comprises a core portion (100) and out-core wiring portion (30). The core portion (100) comprises a carbon fiber reinforced portion (10) composed of a carbon fiber material (11) and resin composition (12), and an in-core wiring portion (20) which has a laminated structure of at least one insulating layer (21) containing a glass fiber material (21a) and a wiring pattern (22) composed of a conductor having an elastic modulus of 10 to 40 GPa and which is bonded to the carbon fiber reinforced portion (10). The out-core wiring portion (30) has a laminated structure of at least one insulating layer (31) and a wiring pattern (32) and is bonded to the core portion (100) at the in-core wiring portion (20).
摘要:
A semiconductor device includes a support body, a first substrate provided on a surface at one side of the support body, a second substrate provided on a surface at the other side of the support body, and a semiconductor chip provided on the first substrate exposed to an opening part piercing the support body and the second substrate. The first substrate includes a first dielectric layer and a wiring layer, a plurality of first electrodes connected to the semiconductor chip which first electrodes are provided on a first surface of the first substrate exposed to an inside of the opening part, and the second substrate includes a second dielectric layer made of a material substantially the same as the first dielectric layer.
摘要:
A semiconductor device includes a support body, a first substrate provided on a surface at one side of the support body, a second substrate provided on a surface at the other side of the support body, and a semiconductor chip provided on the first substrate exposed to an opening part piercing the support body and the second substrate. The first substrate includes a first dielectric layer and a wiring layer, a plurality of first electrodes connected to the semiconductor chip which first electrodes are provided on a first surface of the first substrate exposed to an inside of the opening part, and the second substrate includes a second dielectric layer made of a material substantially the same as the first dielectric layer.
摘要:
The wiring board comprises a plate-shaped conductive core material 10 with a through-hole 12 formed in, an insulation layer 14 formed on the surface of the conductive core material 10 and on the inside wall of the through-hole 12, a resin 18 buried in the through-hole 12 with the insulation layer 14 formed in, wirings 22a, 22b formed on the upper surface and the undersurface of the conductive core material 10 with the insulation layer 14 formed on, and an wiring 22d formed in the through-hole 20 formed in the resin 18 and electrically connected to the wirings 22a, 22b.
摘要:
A printed wiring board is made of first and second substrates superimposed on each other. The first and second substrates respectively include a core layer made of resin containing carbon fibers. The second substrate has the outline different from that of the first substrate. A stepped surface is defined on the front surface at least of the first substrate. Electrodes can be formed on the stepped surface as well as on the back surface of the first substrate and the front surface of the second substrate. This structure enables detection of an electric signal from the stepped surface. A further flexibility can thus be achieved in locating electrodes as compared with a conventional printed wiring board having uniform substrates simply superimposed on each other. This results in an expanded use or purpose for a printed wiring board.
摘要:
A multilayer wiring board is composed of a core portion, a first wiring portion and a second wiring portion. The core portion includes a core insulating layer containing a carbon fiber material. The first wiring portion is bonded to the core portion and has a laminated structure including at least a first insulating layer and a first wiring pattern, the first insulating layer containing glass cloth. The second wiring portion is bonded to the first wiring portion and has a laminated structure including at least a second insulating layer and a second wiring pattern. The core portion, the first wiring portion and the second wiring portion are arranged in a stack.
摘要:
The wiring board comprises a plate-shaped conductive core material 10 with a through-hole 12 formed in, an insulation layer 14 formed on the surface of the conductive core material 10 and on the inside wall of the through-hole 12, a resin 18 buried in the through-hole 12 with the insulation layer 14 formed in, wirings 22a, 22b formed on the upper surface and the undersurface of the conductive core material 10 with the insulation layer 14 formed on, and an wiring 22d formed in the through-hole 20 formed in the resin 18 and electrically connected to the wirings 22a, 22b.
摘要:
A wiring board includes a core layer and a pair of multilayer wiring portions. The core layer, having an upper surface and a lower surface, is formed from a resin composite which contains resin filler and encloses several pieces of carbon fiber cloth. One of the multilayer wiring portions is stacked on the upper surface of the core layer, while the other is stacked on the lower surface of the core layer. Each multilayer wiring portion is composed of a number of insulating layers and wiring patterns stacked alternately with the insulating layers. The wiring patterns of the upper and the lower wiring portions are connected to each other by conductors extending through the entire thickness of the core layer.