Abstract:
In the present invention, in a mark forming step in a manufacturing method for a component incorporated substrate in which an electronic component (14) is positioned with reference to a mark (12) formed in a copper layer (4), when an imaginary line extending from a search center (74), which is a center of a search range (72) of a sensor, to an edge side (78) of the search range (72) is represented as a search reference line (80) and an imaginary line extending, in a state in which a mark center (76), which is the center of the mark (12), is matched with the search center (74), from the mark center (76) in the same direction as the search reference line (80) and to an outer ridgeline (25) of the mark (12) is represented as a mark reference line (82), the mark (12) is formed in a shape in which the outer ridgeline (25) of the mark (12) is present in a position where a length of the mark reference line (82) is in a range of 30% or more of the search reference line (80).
Abstract:
A manufacturing method for a component incorporated substrate according to the present invention includes positioning an electronic component (14) with reference to a mark (12) formed on a copper layer (4), the mark (12) consisting of a material less easily etched than copper by a copper etching agent used for etching of copper, after mounting the electronic component (14) on the copper layer (4) with an adhesive layer (18) interposed therebetween, embedding the electronic component (14) and the mark (12) in an insulating substrate (34), thereafter, etching and removing a part of the copper layer (4) to form a window (W1) for exposing the mark (12), forming an LVH (46) reaching a terminal (20) of the electronic component (14) with reference to the exposed mark (12), electrically connecting the terminal (20) and the copper layer (4) via a conduction via (47) formed by applying copper plating to the LVH (46), and, thereafter, forming the copper layer (4) into a wiring pattern (50).
Abstract:
A metal interconnect structure ( 100 ) comprising a bond pad ( 101 ), which has copper with at least 70 volume percent composed of crystal grains expanding more than 1 mum in their main direction, and 30 or less volume percent composed of crystal grains, which expand less than 1 mum in their main crystal direction. A body ( 102 ) of tin alloy is in contact with the bond pad.
Abstract:
One aspect of the present invention is a method of mounting a semiconductor chip having: a step of forming a resin coating 3 on a surface of a path connecting a bonding pad 2a on a surface of a semiconductor chip 2 and an electrode pad 1a formed on a surface of an insulating base material 1; a step of forming, by laser beam machining, a wiring gutter 4 having a depth that is equal to or greater than a thickness of the resin coating 3 along the path for connecting the bonding pad 2a and the electrode pad 1 a; a step of depositing a plating catalyst 5 on a surface of the wiring gutter 4; a step of removing the resin coating 3; and a step of forming an electroless plating coating 6 only at a site where the plating catalyst 5 remains. Another aspect of the present invention is a three-dimensional structure in which a wiring is formed on a surface, wherein, on the surface of the three-dimensional structure, a recessed gutter for wiring is formed, extending between mutually intersecting adjacent faces of the three-dimensional structure, and wherein at least a part of a wiring conductor is embedded in the recessed gutter for wiring.
Abstract:
A flexible flat cable connecting structure and a flexible flat cable connecting method are provided so that a connector can be connected by pitch conversion without complicating the structure of the connector and metal molds for forming mold parts become unnecessary. A flexible flat cable connecting structure for connecting a flexible flat cable (13) in which a plurality of rectangular conductors (11) are provided in parallel and a plurality of connector terminals arranged at an array pitch different from that of the rectangular conductors comprises an intermediate cable arranging member (17) one end of which is coupled to the connector terminals and in which a plurality of branch conductors (19) are provided in parallel which are set to have mutually different longitudinal dimensions according to the array pitch. The intermediate cable arranging member (17) is laid on the flexible flat cable (13) so that the intermediate cable arranging member (17) and the flexible flat cable (13) are in the same plane and form an angle. The other ends (21) of the branch conductors (19) of the intermediate cable arranging member (17) are connected to the respective rectangular conductors (11).
Abstract:
The invention relates to a package board having a core board (30) on each surface of which a plurality of conductor circuits are formed with an interlaminar resin insulating layer therebetween, wherein a plurality of soldering pads (75U,75D) are formed on the IC chip mounted side surface, as well as on the other side surface to be connected to another board, so that said soldering pads (75D) on the other side surface are larger than those on said IC chip side surface of said package board, and a dummy pattern (58M) is formed between conductor circuit patterns formed on said IC chip mounted side surface of said core board.
Abstract:
System in package (1) comprising a substrate (4) having at least a first external layer (2) comprising a first conductive patterned layer (29) and being externally accessible for electrically connecting the system in package (1) to an external electric circuit and a second internal layer (3) comprising a second conductive patterned layer (30) and being covered by the first layer (2) and electronic devices (6) provided on the substrate (4) and electrically connected to external contact pads (7) of the first conductive patterned layer (29), the devices (6) and the first and the second conductive patterned layer (29, 30) being electrically connected such as to form an internal electric circuit provided to be electronically connected to the external electric circuit, the first (2) and the second layer (3) being adjacently positioned, the electronic devices (6) being enclosed in an over mould compound,characterised in that at least one of the devices (6) is electrically connected to at least one hidden contact pad (5) of the second conductive patterned layer (30) which is accessible after removal of a removable strip (8) of the first layer (2).
Abstract:
A double-sided USB connector (201) may include a first PCB (40) that may provide a first set of electrical contacts (42) on its first side and solder pads on its second side. The first PCB may further include a components side, solder pads, and signal traces. The double-sided USB connector (201) may also include a second PCB (38) that may provide a second set of electrical contacts (35) on its first side and terminals (46) on its second side. Contacts selected from the second set of contacts (35) may be connected to selected terminals (46),.for example through via paths in the second PCB (38). Contacts from the first and second sets of contacts (42, 35) may selectively be connected to components on the first PCB (48) using signal traces rather than wires. The first PCB (40) may be joined to the second PCB (38) by using the terminals (46), and the two PCBs (40, 38) may be packaged using a common molded body.