Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a printed wiring board which does not generate a short circuit in a bonding pad even if an insulating space is narrowed in arranging the bonding pad. SOLUTION: The top of a conductor circuit covered by a solder resist layer 70 is exposed for the bonding pad 58b, and a nickel layer 73 and a metal layer 74 are formed. In other words, the surface of an interlayer resinous insulating layer 50 with catalysis nucleus created to form an non-electrolytic plating layer 52 is covered with the solder resist layer 70, and neither nickel layer 73 nor metal layer 74 is formed in a resinous layer. Consequently, no short circuit is generated by the nickel layer and the metal layer, and furthermore, the short circuit is not generated in the bonding pad even if the insulating space is narrowed in arranging the bonding pad in a fine pitch. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To form the conductive connection member of a multi-layer wiring board by a simple procedure. SOLUTION: A multi-layer wiring board 102 is configured such that a wiring layer 110 containing a plurality of vias 114 formed in an insulating film 112 so as to be exposed to the other face side and a wiring layer 130 containing a plurality of vias 138 formed in an insulating film 132 formed on one face side at the opposite side of the other face are laminated. In the multi-layer wiring board 102, each of the plurality of vias 138 formed in the wiring layer 130 is connected directly or via the other conductive materials to any of the vias 114, and each of the plurality of vias 114 is connected directly or via the other conductive materials to any of the vias 138, wherein each of the plurality of vias 114 includes dummy conductive connection members (via 114c, via 114d) which do not configure any current path between the connected via 138 and itself. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a structure of an electronic component unit that can suppress thermal effect during manufacture of the electronic component unit and is more resistive to such thermal effect and also provide a method of manufacturing the structure of semiconductor electronic component unit. SOLUTION: The method of manufacturing the electronic component unit includes a first loading step of reflow loading of an electronic component 50 to a first surface 11 of a base substrate 10, a second loading step of reflow loading of an electronic component 60 of a first surface 21 of a base substrate 20, a first bonding step of bonding a second surface 12 of the base substrate 10 to a first surface 31 of an internal layer substrate 30, and a second bonding step of bonding a second surface 22 of the base substrate 20 to a second surface 32 of the internal layer substrate 30. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-layer printed circuit board and a manufacturing method thereof, that can prevent curving occurring when a printed circuit board is manufactured. SOLUTION: The manufacturing method includes te steps of: forming an outermost insulation layer, in which openings are formed corresponding to the external contact pads; forming a mask, in which openings are formed corresponding to the external contact pad and a circuit pattern, on the outermost insulation layer; forming the external contact pads and the circuit pattern in the openings of the outermost insulation layer and the openings of the mask; removing the mask; forming a build-up layer by stacking layers over the outermost insulation layer so that the external contact pads and the circuit pattern are covered; forming a first solder resist layer on the build-up layer; forming a second solder resist layer on an opposite side of the outermost insulation layer where the build-up layer is formed; and forming openings in the second solder resist layer so that the external contact pads are exposed. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a package substrate for mounting a semiconductor element, which has a high degree of freedom in combining packages and a small limitation in pattern design and makes it possible to connect together a top package and a bottom package at a high density in the case of constituting a PoP, and to provide a method for manufacturing the same. SOLUTION: The package substrate for mounting a semiconductor element includes: a cavity layer which is provided with a cavity material and an adhesive and penetrates them; a base layer laminated on the cavity layer by using the adhesive; a cavity section formed by an opening; and a bottomed via hole formed by a through hole. The cavity layer is provided with an inner layer circuit, a metal coating is formed by plating on the inner wall of the bottomed via hole so as to be bonded to the inner layer circuit, and the bottomed via hole is filled with a conductive resin. The method for manufacturing the same is also provided. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a package substrate for mounting a semiconductor element, which has a high degree of freedom in combining packages and a small limitation in pattern design and makes it possible to connect together a top package and a bottom package at a high density in the case of constituting a PoP, and to provide a method for manufacturing the same by simple processes at a low cost. SOLUTION: The package substrate for mounting a semiconductor element includes: a cavity layer having an opening and a through hole; a base layer laminated on the cavity layer; a cavity section formed by the opening; and a bottomed via hole formed by the through hole. The package substrate for mounting a semiconductor element has a metal film which is formed by forming a metal coating on the inner wall of the bottomed via hole, filling the bottomed via hole with a conductive resin with the metal coating as a base, arranging a conductive component contained in the conductive resin in an exposed state on the entrance side of the bottomed via hole, and directly depositing plating on the exposed conductive component. The method for manufacturing the same is also provided. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a flexible printed wiring board thinner than a conventional one, and also to provide a touch panel, a display panel, and a display, each having the printed wiring board. SOLUTION: A wiring layer 33 is arranged so that it is brought into contact with only one face of a base film 31. An anisotropic conductive film 35 installed on one face of the base film 31 is electrically connected to two wiring layers 32 which are installed on one face of the base film 31 and whose openings are not confronted each other. An anisotropic conductive film 36 arranged on the other face of the base film 31 is electrically connected to the two wiring layers 32 which are installed on one face of the base film 31 through an opening 31A formed in the base film 31 such that their openings confront each other. COPYRIGHT: (C)2010,JPO&INPIT