摘要:
The present invention is to provide a multilayered printed circuit board free from cracks attributed to thermal expansion difference between a solder resist layer and another part and a multilayered printed circuit board of the present invention comprises a conductor circuit and a resin insulating layer serially formed on a substrate in an alternate fashion and in repetition and a solder resist layer formed as an outermost layer, and the solder resist layer contains an inorganic filler.
摘要:
The present invention is to provide a multilayered printed circuit board free from cracks attributed to thermal expansion difference between a solder resist layer and another part and a multilayered printed circuit board of the present invention comprises a conductor circuit and a resin insulating layer serially formed on a substrate in an alternate fashion and in repetition and a solder resist layer formed as an outermost layer, and the solder resist layer contains an inorganic filler.
摘要:
The present invention is to provide a multilayered printed circuit board free from cracks attributed to thermal expansion difference between a solder resist layer and another part and a multilayered printed circuit board of the present invention comprises a conductor circuit and a resin insulating layer serially formed on a substrate in an alternate fashion and in repetition and a solder resist layer formed as an outermost layer, and the solder resist layer contains an inorganic filler.
摘要:
The present invention is to provide a multilayered printed circuit board free from cracks attributed to thermal expansion difference between a solder resist layer and another part and a multilayered printed circuit board of the present invention comprises a conductor circuit and a resin insulating layer serially formed on a substrate in an alternate fashion and in repetition and a solder resist layer formed as an outermost layer, and the solder resist layer contains an inorganic filler.
摘要:
A method of manufacturing a multilayer printed circuit board includes preparing a substrate having a first conductor circuit, forming on first circuit formed over substrate a film including cycloolefin resin such that an insulating layer including the resin is formed on substrate and first circuit, forming in insulating layer an opening exposing at least portion of first circuit, forming an electroless plating film covering surface of insulating layer including surface of insulating layer inside opening, forming on electroless film a plating resist layer having pattern exposing selected portions of electroless film, selected portions of electroless film including a second conductor circuit and a portion of electroless film covering opening, and forming an electrolytic plating film covering selected portions of electroless film such that a filled via conductor including an electrolytic material filling space in opening and that first circuit is connected to second circuit via conductor.
摘要:
A multilayer printed circuit board including a substrate board having a lower conductor circuit, a resin insulating layer formed over the substrate board and lower conductor circuit, and a conductor circuit formed over the resin insulating layer. The resin insulating layer has a via hole filled up with plating and is formed of a linear polyolefin resin formed by hot-pressing a film shaped resin.
摘要:
The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in fracture toughness, dielectric constant, adhesion and processability, among other characteristics.The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.
摘要:
The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in facture toughness, dielectric constant, adhesion and processability, among other characteristics. The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.
摘要:
A multilayer printed circuit board including a substrate board and a built-up structure formed over the substrate board. The built-up structure includes conductor circuits and resin insulating layers. The built-up structure has via holes interconnecting the conductor circuits through one or more resin insulating layers. The via holes are filled up with plating, and the resin insulating layers is formed of a cycloolefin resin.
摘要:
A method of manufacturing a multilayer printed circuit board including preparing a substrate board having a conductor circuit formed over the substrate board, forming an interlayer resin insulating layer on the conductor circuit formed over the substrate board by press laminating on the conductor circuit a film comprising a cycloolefin resin under vacuum or reduced pressure, and forming a via hole connecting to the conductor circuit through the resin insulating layer, the forming of the via hole including plating the via hole to fill up.